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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>As filed with the Securities and Exchange Commission
on May 9, 2025. </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B>Registration No.&nbsp;333- </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549 </B></P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">&nbsp;</P>

<P STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM S-8 </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>REGISTRATION STATEMENT </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>UNDER </I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><I>THE SECURITIES ACT OF 1933 </I></B>&nbsp;</P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">&nbsp;</P>

<P STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>INFORMATION SERVICES GROUP, INC. </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Exact name of registrant as specified in its
charter) </B>&nbsp;</P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="vertical-align: top; text-align: center; font-size: 10pt; width: 49%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Delaware</B></FONT></TD>
    <TD STYLE="text-align: center; vertical-align: bottom; font-size: 10pt; width: 2%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: center; font-size: 10pt; width: 49%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>20-5261587</B></FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: center; vertical-align: top"><B>(State or other jurisdiction of<BR>
incorporation
or organization)</B></TD>
    <TD STYLE="text-align: center; vertical-align: bottom; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="text-align: center; vertical-align: top"><B>(I.R.S. Employer<BR>
Identification No.)</B></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>2187 Atlantic Street</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Stamford, CT 06902</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Address of Principal Executive Offices) </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Information Services Group, Inc. Amended and
Restated 2007 Equity and Incentive Award Plan<BR>
Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Full Title of the plan) </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Michael A. Sherrick</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Executive Vice President and Chief Financial
Officer</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Information Services Group, Inc. </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>2187 Atlantic Street<BR>
Stamford, CT 06902</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Name and address of agent for service) </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(203) 517-3100</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Telephone number, including area code, of agent
for service) </B>&nbsp;</P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the registrant
is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company.
See the definitions of &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer,&rdquo; &ldquo;smaller reporting company&rdquo;
and &ldquo;emerging growth company&rdquo; in Rule 12b-2 of the Exchange Act.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 21%; font-size: 10pt"><FONT STYLE="font-size: 10pt">Large&nbsp;accelerated&nbsp;filer</FONT></TD>
    <TD STYLE="width: 6%; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD>
    <TD STYLE="width: 24%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 29%; font-size: 10pt"><FONT STYLE="font-size: 10pt">Accelerated&nbsp;filer</FONT></TD>
    <TD STYLE="width: 20%; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#120;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">Non-accelerated filer</FONT></TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">Smaller reporting&nbsp;company</FONT></TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#120;</FONT></TD></TR>

<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 21%">&nbsp;</TD>
    <TD STYLE="width: 6%">&nbsp;</TD>
    <TD STYLE="width: 24%">&nbsp;</TD>
    <TD STYLE="width: 29%"><FONT STYLE="font-size: 10pt">Emerging growth company</FONT></TD>
    <TD STYLE="width: 20%"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">If an emerging growth company, indicate by check
mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting
standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. <FONT STYLE="font-family: Wingdings">&#168;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>




<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>EXPLANATORY NOTE </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This Registration Statement on Form S-8 (the &ldquo;Registration
Statement&rdquo;) is being filed by Information Services Group, Inc. (the &ldquo;Registrant&rdquo;) for the purpose of registering (i)
an additional 4,400,000 shares (the &ldquo;Incentive Plan Shares&rdquo;) of the Registrant&rsquo;s common stock, $0.001 par value per
share (the &ldquo;Common Stock&rdquo;), pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive
Award Plan, as further amended (the &ldquo;Incentive Plan&rdquo;), and (ii) an additional 1,200,000 shares (the &ldquo;ESPP Shares&rdquo;
and together with the Incentive Plan Shares, the &ldquo;Shares&rdquo;) of the Registrant&rsquo;s Common Stock pursuant to the Information
Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan (the &ldquo;ESPP&rdquo; and together with the Incentive Plan,
the &ldquo;Plans&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In accordance with General Instruction E to
Form S-8, the contents of the Registration Statements on Form S-8 of the Registrant filed with the Securities and Exchange
Commission (the &ldquo;Commission&rdquo;) on <A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000110465908020725/a08-9458_1s8.htm" STYLE="-sec-extract: exhibit">March
28, 2008 (Registration No. 333-149950)</A>, <A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000110465910044426/a10-15850_1s8.htm" STYLE="-sec-extract: exhibit">August
13, 2010 (Registration No. 333-168848)</A>, <A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000104746914005136/a2220297zs-8.htm" STYLE="-sec-extract: exhibit">May
22, 2014 (Registration No. 333-196193)</A>, <A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000110465917033492/a17-13245_1s8.htm" STYLE="-sec-extract: exhibit">May
17, 2017 (Registration No. 333-218061)</A>, <A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000110465920059659/tm2019214d1_s8.htm" STYLE="-sec-extract: exhibit">May
11, 2020 (Registration No. 333-238177)</A>, <A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000110465923101647/tm2326252d1_s8.htm" STYLE="-sec-extract: exhibit">September
18, 2023 (Registration No. 333-274560)</A> and <A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000155837024008604/tmb-20240523xs8.htm" STYLE="-sec-extract: exhibit">May
23, 2024 (Registration No. 333-279672)</A>, including any amendments thereto or filings incorporated therein, are incorporated
herein by this reference to the extent not replaced hereby.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>PART I</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The documents containing the information specified
by Part I of Form S-8 (Plan Information and Registrant Information and Employee Annual Information) have been or will be delivered to
each participant in each of the Plans, as specified in Rule 428(b)(1) promulgated by the Securities and Exchange Commission (the &ldquo;Commission&rdquo;
or &ldquo;SEC&rdquo;) under the Securities Act of 1933, as amended (the &ldquo;Securities Act&rdquo;), and the instructions to Form S-8.
This information has been omitted from this filing in accordance with the provisions of Rule 424 under the Securities Act and the introductory
note to Part I of Form S-8. These documents and the documents incorporated by reference in this Registration Statement pursuant to Item
3 of Part II of this Registration Statement, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the
Securities Act.</P>




<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>PART II</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 3.</B></FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Incorporation of Documents by Reference</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0in; text-indent: 0in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The following documents filed with the Commission
are hereby incorporated by reference in this Registration Statement:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in">&nbsp;</TD><TD STYLE="width: 0.25in">(a)</TD><TD STYLE="text-align: justify">The Registrant&rsquo;s <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1371489/000155837025002897/iii-20241231x10k.htm" STYLE="-sec-extract: exhibit">Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the Commission on March 13, 2025</A> (the &ldquo;Annual Report&rdquo;);</TD></TR>
<TR STYLE="vertical-align: top">
<TD>&nbsp;</TD><TD>&nbsp;</TD><TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in">&nbsp;</TD><TD STYLE="width: 0.25in">(b)</TD><TD STYLE="text-align: justify">The portions of the Registrant&rsquo;s <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1371489/000114036125008785/ny20040416x1_def14a.htm" STYLE="-sec-extract: exhibit">Definitive Proxy Statement on Schedule 14A for the 2025 Annual Meeting of Stockholders, filed with the Commission on March 14, 2025</A>, that are incorporated by reference into the Annual Report;</TD></TR>
<TR STYLE="vertical-align: top">
<TD>&nbsp;</TD><TD>&nbsp;</TD><TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in">&nbsp;</TD><TD STYLE="width: 0.25in">(c)</TD><TD STYLE="text-align: justify">The Registrant&rsquo;s <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1371489/000155837025007132/iii-20250331x10q.htm" STYLE="-sec-extract: exhibit">Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, filed with the Commission on May 9, 2025</A>;</TD></TR>
<TR STYLE="vertical-align: top">
<TD>&nbsp;</TD><TD>&nbsp;</TD><TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in">&nbsp;</TD><TD STYLE="width: 0.25in">(d)</TD><TD STYLE="text-align: justify">The Registrant&rsquo;s Current Reports on Form 8-K filed with the Commission on <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1371489/000110465925039412/tm2513190d1_8k.htm" STYLE="-sec-extract: exhibit">April 25, 2025</A> and <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1371489/000155837025006999/iii-20250508x8k.htm" STYLE="-sec-extract: exhibit">May 8, 2025</A> (except that, with respect to the foregoing Current Reports on Form 8-K, any portions thereof which are furnished and not filed
shall not be deemed incorporated by reference into this Registration Statement); and</TD></TR>
<TR STYLE="vertical-align: top">
<TD>&nbsp;</TD><TD>&nbsp;</TD><TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in">&nbsp;</TD><TD STYLE="width: 0.25in">(e)</TD><TD STYLE="text-align: justify">The description of the Registrant&rsquo;s Common Stock incorporated by reference to <A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000155837020002405/iii-20191231ex42dbb05ba.htm" STYLE="-sec-extract: exhibit">Exhibit 4.2</A> to the
Annual Report, and as amended by any subsequent amendment or any report filed for the purpose of updating such description.&nbsp;</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Registrant also incorporates by reference
into this Registration Statement all information contained in additional documents (other than portions of the documents that are furnished
under Item 2.02 or Item 7.01 of a Current Report on Form 8-K and exhibits furnished on such form that relate to such items, unless otherwise
indicated therein) that it files with the Commission pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of
1934, as amended (the &ldquo;Exchange Act&rdquo;), prior to the filing of a post-effective amendment to this Registration Statement which
indicates that all of the shares of Common Stock offered have been sold or which deregisters all of such shares then remaining unsold.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Any statement contained in a document incorporated
or deemed to be incorporated by reference herein shall be deemed to be modified or superseded to the extent that a statement contained
herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes
such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a
part of this Registration Statement. The modifying or superseding statement need not state that it has modified or superseded a prior
statement or include any other information set forth in the document that it modifies or supersedes. The making of such a modifying or
superseding statement shall not be deemed an admission for any purposes that the modified or superseded statement, when made, constituted
a misrepresentation, an untrue statement of a material fact or an omission to state a material fact that is required to be stated or that
is necessary to make a statement not misleading in light of the circumstances in which it was made. You should not assume that the information
in this Registration Statement or in the documents incorporated by reference is accurate as of any date other than the date of this Registration
Statement or those documents.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 4.</B></FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Description of Securities</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 5.</B></FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Interests of Named Experts and Counsel</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 6.</B></FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Indemnification of Directors and Officers</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to section 145 of the Delaware
General Corporation Law (the &ldquo;DGCL&rdquo;), a corporation has the power to indemnify a party to any threatened, pending or
completed legal proceeding by reason of his or her service on behalf of a corporation. The DGCL further mandates that
indemnification shall be made to any such person who has been successful &ldquo;on the merits&rdquo; or &ldquo;otherwise&rdquo; with
respect to the defense of any such proceeding but does not require indemnification in any other circumstances. The DGCL provides
that a corporation has the power to indemnify a director, officer, employee or agent of the corporation and certain other persons
serving at the request of the corporation in related capacities against amounts paid and expenses incurred in connection with an
action or proceeding to which he or she is or is threatened to be made a party by reason of such position, if such person has acted
in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation, and,
in any criminal proceeding, if such person had no reasonable cause to believe his or her conduct was unlawful; provided that, in the
case of actions brought by or in the right of the corporation, no indemnification may be made with respect to any matter as to which
such person has been adjudged to be liable to the corporation unless and only to the extent that the adjudicating court determines
that such indemnification is proper under the circumstances. A corporation may advance the expenses incurred in defending such a
proceeding upon the giving of an undertaking, or promise, to repay such sums in the event it is later determined that such
indemnitee is not entitled to be indemnified.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to Section 9 of the Registrant&rsquo;s
Fourth Amended and Restated Certificate of Incorporation (the &ldquo;Charter&rdquo;), the Registrant shall indemnify to the fullest extent
permitted by section 145 of the DGCL each person that such section grants the Registrant the power to indemnify and shall advance expenses
incurred by an indemnified person in defending any civil, criminal, administrative, or investigative action, suit or proceeding for which
such indemnified person may be entitled to indemnification.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Registrant also maintains insurance for its
directors and officers against certain liabilities, including liabilities under the Securities Act. The effect of this insurance is to
indemnify any director or officer of the Registrant against expenses, including, without limitation, attorneys&rsquo; fees, judgments,
fines and amounts paid in settlement, incurred by a director or officer upon a determination that such person acted in good faith. The
premiums for such insurance are paid by the Registrant.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Under separate indemnification agreements with
the Registrant, each director and certain officers of the Registrant are indemnified against certain liabilities relating to his or her
position as a director or officer of the Registrant, to the fullest extent permitted under applicable law.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 7.</B></FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exemption From Registration Claimed</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 8.</B></FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibits</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"><B>&nbsp;</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 10%; text-align: left"><U>Exhibit No.</U></TD><TD STYLE="text-align: justify; width: 90%"><U>Description</U></TD>
</TR>
<TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%"><A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000104746907000443/a2175732zex-3_1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.1</FONT></A></TD>
    <TD STYLE="text-align: justify; width: 90%"><A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000104746907000443/a2175732zex-3_1.htm" STYLE="-sec-extract: exhibit">Fourth Amended and Restated Certificate of Incorporation
    of Information Services Group, Inc. (previously filed as Exhibit 3.1 to Amendment No. 5 to the Registrant&rsquo;s Registration Statement
    on Form S-1 filed with the Commission on January 29, 2007 (Commission File Number: 333-136536) and incorporated herein by reference)</A></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000110465913042027/a13-12544_1ex3d1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.2</FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000110465913042027/a13-12544_1ex3d1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amended
and Restated By-Laws of Information Services Group, Inc., dated as of May 13, 2013 (previously filed as Exhibit 3.1 to the Registrant&rsquo;s
Form 8-K filed with the Commission on May 15, 2013 (Commission File Number: 001-33287) and incorporated herein by reference)</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000110465917068011/a17-26393_1ex3d1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.3</FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000110465917068011/a17-26393_1ex3d1.htm" STYLE="-sec-extract: exhibit">Amendment to the Amended and Restated By-Laws
    of Information Services Group, Inc., dated as of November 8, 2017 (previously filed as Exhibit 3.1 to the Registrant&rsquo;s Form 8 K
    filed with the Commission on November 13, 2017 (Commission File Number: 001-33287) and incorporated herein by reference)</A></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000104746906015247/a2175257zex-4_2.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.4</FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1371489/000104746906015247/a2175257zex-4_2.htm" STYLE="-sec-extract: exhibit">Specimen Common Stock Certificate (previously
    filed as Exhibit 4.2 to Amendment No. 3 to the Registrant&rsquo;s Registration Statement on Form S-1 filed with the Commission on December
    22, 2006 (Commission File Number: 333-136536), and incorporated herein by reference)</A></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><A HREF="tm2514571d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.1*</FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="tm2514571d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Opinion of Katten Muchin Rosenman LLP with respect to the legality of securities</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>

<TR STYLE="vertical-align: top">
    <TD><A HREF="tm2514571d1_ex23-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.1*</FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="tm2514571d1_ex23-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consent of PricewaterhouseCoopers LLP</FONT></A></TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><A HREF="tm2514571d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.2*</FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="tm2514571d1_ex5-1.htm" STYLE="-sec-extract: exhibit">Consent of Katten Muchin Rosenman LLP (included in Exhibit 5.1)</A></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><A HREF="#SS01"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">24.1*</FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="#SS01">Power of Attorney (included in the signature pages hereto)</A></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1371489/000114036125008785/ny20040416x1_def14a.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.1 </FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1371489/000114036125008785/ny20040416x1_def14a.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan (previously filed as Appendix A to the Registrant&rsquo;s Definitive Proxy Statement filed with the SEC on March 14, 2025 (Commission File Number 001-33287) and incorporated herein by reference).</FONT></A></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1371489/000114036125008785/ny20040416x1_def14a.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.2</FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1371489/000114036125008785/ny20040416x1_def14a.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan (previously filed as Appendix B to the Registrant&rsquo;s Definitive Proxy Statement filed with the SEC on March 14, 2025 (Commission File Number 001-33287) and incorporated herein by reference).</FONT></A></TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><A HREF="tm2514571d1_ex-filingfees.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">107*</FONT></A></TD>
    <TD STYLE="text-align: justify"><A HREF="tm2514571d1_ex-filingfees.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Filing Fee Table</FONT></A></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">*Filed herewith.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item 9.</B></FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Undertakings</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a) The undersigned registrant hereby undertakes:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 0.25in">&nbsp;</TD>
    <TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 0.5in">&nbsp;</TD>
    <TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">to include any prospectus required by section 10(a)(3) of the Securities Act;</FONT></TD></TR>
  </TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 0.5in">&nbsp;</TD>
    <TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of a prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the &ldquo;<I>Calculation of Filing Fee Tables</I>&rdquo; or &ldquo;<I>Calculation of Registration Fee</I>&rdquo; table, as applicable, in the effective registration statement;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 0.5in">&nbsp;</TD>
    <TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iii)</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">to include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">provided, however, that the undertakings set forth
in paragraphs (a)(1)(i) and (a)(1)(ii) of this section do not apply if the information required to be included in a post-effective amendment
by those paragraphs is contained in reports filed with or furnished to the Commission by the Registrant pursuant to Section 13 or Section
15(d) of the Exchange Act that are incorporated by reference in the registration statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 0.25in">&nbsp;</TD>
    <TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.</FONT></TD></TR>
  </TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 0.25in">&nbsp;</TD>
    <TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.</FONT></TD></TR>
  </TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(b) The undersigned registrant hereby undertakes
that, for purposes of determining any liability under the Securities Act, each filing of the registrant&rsquo;s annual report pursuant
to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan&rsquo;s annual report
pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial<I>&nbsp;bona fide</I>&nbsp;offering thereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>




<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">(c) Insofar as indemnification for liabilities
arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing
provisions, or otherwise, the registrant has been advised that in the opinion of the Commission such indemnification is against public
policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the
registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.</P>




<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B></B></P>

<!-- Field: Page; Sequence: 5 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>SIGNATURES</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to the requirements of the Securities
Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form
S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City
of Stamford, State of Connecticut, on this 9th day of May, 2025.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>INFORMATION SERVICES GROUP, INC.</B></FONT></TD></TR>
  <TR>
    <TD STYLE="width: 50%">&nbsp;</TD>
    <TD STYLE="width: 3%">&nbsp;</TD>
    <TD STYLE="width: 47%">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">/s/ Michael
A. Sherrick</FONT></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Michael A. Sherrick </FONT></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Executive Vice President and Chief Financial Officer (principal financial officer)</FONT></TD></TR>
  </TABLE>

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<P STYLE="margin-top: 0; margin-bottom: 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U><A NAME="SS01"></A>POWER OF ATTORNEY</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Each person whose signature appears below hereby
constitutes and appoints Michael P. Connors and Michael A. Sherrick, and each of them severally, acting alone and without the other, his
or her true and lawful attorneys-in-fact and agents, with full power of substitution, to sign on his or her behalf, individually and in
each capacity stated below, all amendments and post-effective amendments to this Registration Statement on Form S-8 and to file the same,
with all exhibits thereto and any other documents in connection therewith, with the Securities and Exchange Commission under the Securities
Act of 1933, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite
and necessary to be done in and about the premises, as fully and to all intents and purposes as each might or could do in person, hereby
ratifying and confirming each act that said attorneys-in-fact and agents may lawfully do or cause to be done by virtue thereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to the requirements of the Securities
Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 32%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Signature</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 44%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Titles</B></FONT></TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="text-align: center; width: 20%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Date</B></FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/Michael P. Connors</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chairman and Chief Executive Officer </FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center; white-space: nowrap"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">May 9, 2025</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Michael P. Connors</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Principal Executive Officer)</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/Michael A. Sherrick</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Executive Vice President and Chief Financial Officer </FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center; white-space: nowrap"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">May 9, 2025</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Michael A. Sherrick </FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Principal Financial Officer and Principal Accounting Officer)</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/Gerald S. Hobbs</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center; white-space: nowrap"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">May 9, 2025</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Gerald S. Hobbs</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Samuel L. Molinaro Jr. </FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center; white-space: nowrap"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">May 9, 2025</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Samuel L. Molinaro Jr. </FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Bruce N. Pfau</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center; white-space: nowrap"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">May 9, 2025</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bruce N. Pfau</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Christine Putur</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center; white-space: nowrap"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">May 9, 2025</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Christine Putur</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Kalpana Raina</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center; white-space: nowrap"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">May 9, 2025</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Kalpana Raina</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  </TABLE>

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[{"type": "S-8", "sequence": "1", "filename": "tm2514571d1_s8.htm", "description": "FORM S-8", "secsgml_size_bytes": 61592}]
{"company-data": {"conformed-name": "Information Services Group Inc.", "cik": "0001371489", "assigned-sic": "8742", "organization-name": "07 Trade & Services", "ein": "205261587", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-287152", "film-number": "25930640"}, "business-address": {"street1": "2187 ATLANTIC STREET", "city": "STAMFORD", "state": "CT", "zip": "06902", "phone": "203-517-3100"}, "mail-address": {"street1": "2187 ATLANTIC STREET", "city": "STAMFORD", "state": "CT", "zip": "06902"}}
As filed with the Securities and Exchange Commission
on May 9, 2025.
Registration No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
INFORMATION SERVICES GROUP, INC.
(Exact name of registrant as specified in its
charter)
Delaware
20-5261587
(State or other jurisdiction of
incorporation
or organization)
(I.R.S. Employer
Identification No.)
2187 Atlantic Street
Stamford, CT 06902
(Address of Principal Executive Offices)
Information Services Group, Inc. Amended and
Restated 2007 Equity and Incentive Award Plan
Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan
(Full Title of the plan)
Michael A. Sherrick
Executive Vice President and Chief Financial
Officer
Information Services Group, Inc.
2187 Atlantic Street
Stamford, CT 06902
(Name and address of agent for service)
(203) 517-3100
(Telephone number, including area code, of agent
for service)
Indicate by check mark whether the registrant
is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company.
See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company"
and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer
¨
Accelerated filer
x
Non-accelerated filer
¨
Smaller reporting company
x
Emerging growth company
¨
If an emerging growth company, indicate by check
mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting
standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.
¨
EXPLANATORY NOTE
This Registration Statement on Form S-8 (the "Registration
Statement") is being filed by Information Services Group, Inc. (the "Registrant") for the purpose of registering (i)
an additional 4,400,000 shares (the "Incentive Plan Shares") of the Registrant's common stock, $0.001 par value per
share (the "Common Stock"), pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive
Award Plan, as further amended (the "Incentive Plan"), and (ii) an additional 1,200,000 shares (the "ESPP Shares"
and together with the Incentive Plan Shares, the "Shares") of the Registrant's Common Stock pursuant to the Information
Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan (the "ESPP" and together with the Incentive Plan,
the "Plans").
In accordance with General Instruction E to
Form S-8, the contents of the Registration Statements on Form S-8 of the Registrant filed with the Securities and Exchange
Commission (the "Commission") on
March
28, 2008 (Registration No. 333-149950)
,
August
13, 2010 (Registration No. 333-168848)
,
May
22, 2014 (Registration No. 333-196193)
,
May
17, 2017 (Registration No. 333-218061)
,
May
11, 2020 (Registration No. 333-238177)
,
September
18, 2023 (Registration No. 333-274560)
and
May
23, 2024 (Registration No. 333-279672)
, including any amendments thereto or filings incorporated therein, are incorporated
herein by this reference to the extent not replaced hereby.
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
The documents containing the information specified
by Part I of Form S-8 (Plan Information and Registrant Information and Employee Annual Information) have been or will be delivered to
each participant in each of the Plans, as specified in Rule 428(b)(1) promulgated by the Securities and Exchange Commission (the "Commission"
or "SEC") under the Securities Act of 1933, as amended (the "Securities Act"), and the instructions to Form S-8.
This information has been omitted from this filing in accordance with the provisions of Rule 424 under the Securities Act and the introductory
note to Part I of Form S-8. These documents and the documents incorporated by reference in this Registration Statement pursuant to Item
3 of Part II of this Registration Statement, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the
Securities Act.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.
Incorporation of Documents by Reference
The following documents filed with the Commission
are hereby incorporated by reference in this Registration Statement:
(a)
The Registrant's
Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the Commission on March 13, 2025
(the "Annual Report");
(b)
The portions of the Registrant's
Definitive Proxy Statement on Schedule 14A for the 2025 Annual Meeting of Stockholders, filed with the Commission on March 14, 2025
, that are incorporated by reference into the Annual Report;
(c)
The Registrant's
Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, filed with the Commission on May 9, 2025
;
(d)
The Registrant's Current Reports on Form 8-K filed with the Commission on
April 25, 2025
and
May 8, 2025
(except that, with respect to the foregoing Current Reports on Form 8-K, any portions thereof which are furnished and not filed
shall not be deemed incorporated by reference into this Registration Statement); and
(e)
The description of the Registrant's Common Stock incorporated by reference to
Exhibit 4.2
to the
Annual Report, and as amended by any subsequent amendment or any report filed for the purpose of updating such description.
The Registrant also incorporates by reference
into this Registration Statement all information contained in additional documents (other than portions of the documents that are furnished
under Item 2.02 or Item 7.01 of a Current Report on Form 8-K and exhibits furnished on such form that relate to such items, unless otherwise
indicated therein) that it files with the Commission pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of
1934, as amended (the "Exchange Act"), prior to the filing of a post-effective amendment to this Registration Statement which
indicates that all of the shares of Common Stock offered have been sold or which deregisters all of such shares then remaining unsold.
Any statement contained in a document incorporated
or deemed to be incorporated by reference herein shall be deemed to be modified or superseded to the extent that a statement contained
herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes
such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a
part of this Registration Statement. The modifying or superseding statement need not state that it has modified or superseded a prior
statement or include any other information set forth in the document that it modifies or supersedes. The making of such a modifying or
superseding statement shall not be deemed an admission for any purposes that the modified or superseded statement, when made, constituted
a misrepresentation, an untrue statement of a material fact or an omission to state a material fact that is required to be stated or that
is necessary to make a statement not misleading in light of the circumstances in which it was made. You should not assume that the information
in this Registration Statement or in the documents incorporated by reference is accurate as of any date other than the date of this Registration
Statement or those documents.
Item 4.
Description of Securities
Not applicable.
Item 5.
Interests of Named Experts and Counsel
Not applicable.
Item 6.
Indemnification of Directors and Officers
Pursuant to section 145 of the Delaware
General Corporation Law (the "DGCL"), a corporation has the power to indemnify a party to any threatened, pending or
completed legal proceeding by reason of his or her service on behalf of a corporation. The DGCL further mandates that
indemnification shall be made to any such person who has been successful "on the merits" or "otherwise" with
respect to the defense of any such proceeding but does not require indemnification in any other circumstances. The DGCL provides
that a corporation has the power to indemnify a director, officer, employee or agent of the corporation and certain other persons
serving at the request of the corporation in related capacities against amounts paid and expenses incurred in connection with an
action or proceeding to which he or she is or is threatened to be made a party by reason of such position, if such person has acted
in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation, and,
in any criminal proceeding, if such person had no reasonable cause to believe his or her conduct was unlawful; provided that, in the
case of actions brought by or in the right of the corporation, no indemnification may be made with respect to any matter as to which
such person has been adjudged to be liable to the corporation unless and only to the extent that the adjudicating court determines
that such indemnification is proper under the circumstances. A corporation may advance the expenses incurred in defending such a
proceeding upon the giving of an undertaking, or promise, to repay such sums in the event it is later determined that such
indemnitee is not entitled to be indemnified.
Pursuant to Section 9 of the Registrant's
Fourth Amended and Restated Certificate of Incorporation (the "Charter"), the Registrant shall indemnify to the fullest extent
permitted by section 145 of the DGCL each person that such section grants the Registrant the power to indemnify and shall advance expenses
incurred by an indemnified person in defending any civil, criminal, administrative, or investigative action, suit or proceeding for which
such indemnified person may be entitled to indemnification.
The Registrant also maintains insurance for its
directors and officers against certain liabilities, including liabilities under the Securities Act. The effect of this insurance is to
indemnify any director or officer of the Registrant against expenses, including, without limitation, attorneys' fees, judgments,
fines and amounts paid in settlement, incurred by a director or officer upon a determination that such person acted in good faith. The
premiums for such insurance are paid by the Registrant.
Under separate indemnification agreements with
the Registrant, each director and certain officers of the Registrant are indemnified against certain liabilities relating to his or her
position as a director or officer of the Registrant, to the fullest extent permitted under applicable law.
Item 7.
Exemption From Registration Claimed
Not applicable.
Item 8.
Exhibits
Exhibit No.
Description
4.1
Fourth Amended and Restated Certificate of Incorporation
    of Information Services Group, Inc. (previously filed as Exhibit 3.1 to Amendment No. 5 to the Registrant's Registration Statement
    on Form S-1 filed with the Commission on January 29, 2007 (Commission File Number: 333-136536) and incorporated herein by reference)
4.2
Amended
and Restated By-Laws of Information Services Group, Inc., dated as of May 13, 2013 (previously filed as Exhibit 3.1 to the Registrant's
Form 8-K filed with the Commission on May 15, 2013 (Commission File Number: 001-33287) and incorporated herein by reference)
4.3
Amendment to the Amended and Restated By-Laws
    of Information Services Group, Inc., dated as of November 8, 2017 (previously filed as Exhibit 3.1 to the Registrant's Form 8 K
    filed with the Commission on November 13, 2017 (Commission File Number: 001-33287) and incorporated herein by reference)
4.4
Specimen Common Stock Certificate (previously
    filed as Exhibit 4.2 to Amendment No. 3 to the Registrant's Registration Statement on Form S-1 filed with the Commission on December
    22, 2006 (Commission File Number: 333-136536), and incorporated herein by reference)
5.1*
Opinion of Katten Muchin Rosenman LLP with respect to the legality of securities
23.1*
Consent of PricewaterhouseCoopers LLP
23.2*
Consent of Katten Muchin Rosenman LLP (included in Exhibit 5.1)
24.1*
Power of Attorney (included in the signature pages hereto)
99.1
Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan (previously filed as Appendix A to the Registrant's Definitive Proxy Statement filed with the SEC on March 14, 2025 (Commission File Number 001-33287) and incorporated herein by reference).
99.2
Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan (previously filed as Appendix B to the Registrant's Definitive Proxy Statement filed with the SEC on March 14, 2025 (Commission File Number 001-33287) and incorporated herein by reference).
107*
Filing Fee Table
*Filed herewith.
Item 9.
Undertakings
(a) The undersigned registrant hereby undertakes:
(1)
To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:
(i)
to include any prospectus required by section 10(a)(3) of the Securities Act;
(ii)
to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of a prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the "
Calculation of Filing Fee Tables
" or "
Calculation of Registration Fee
" table, as applicable, in the effective registration statement;
(iii)
to include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;
provided, however, that the undertakings set forth
in paragraphs (a)(1)(i) and (a)(1)(ii) of this section do not apply if the information required to be included in a post-effective amendment
by those paragraphs is contained in reports filed with or furnished to the Commission by the Registrant pursuant to Section 13 or Section
15(d) of the Exchange Act that are incorporated by reference in the registration statement.
(2)
That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(3)
To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
(b) The undersigned registrant hereby undertakes
that, for purposes of determining any liability under the Securities Act, each filing of the registrant's annual report pursuant
to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report
pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial
bona fide
offering thereof.
(c) Insofar as indemnification for liabilities
arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing
provisions, or otherwise, the registrant has been advised that in the opinion of the Commission such indemnification is against public
policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the
registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.
SIGNATURES
Pursuant to the requirements of the Securities
Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form
S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City
of Stamford, State of Connecticut, on this 9th day of May, 2025.
INFORMATION SERVICES GROUP, INC.
By:
/s/ Michael
A. Sherrick
Michael A. Sherrick
Executive Vice President and Chief Financial Officer (principal financial officer)
POWER OF ATTORNEY
Each person whose signature appears below hereby
constitutes and appoints Michael P. Connors and Michael A. Sherrick, and each of them severally, acting alone and without the other, his
or her true and lawful attorneys-in-fact and agents, with full power of substitution, to sign on his or her behalf, individually and in
each capacity stated below, all amendments and post-effective amendments to this Registration Statement on Form S-8 and to file the same,
with all exhibits thereto and any other documents in connection therewith, with the Securities and Exchange Commission under the Securities
Act of 1933, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite
and necessary to be done in and about the premises, as fully and to all intents and purposes as each might or could do in person, hereby
ratifying and confirming each act that said attorneys-in-fact and agents may lawfully do or cause to be done by virtue thereof.
Pursuant to the requirements of the Securities
Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.
Signature
Titles
Date
/s/Michael P. Connors
Chairman and Chief Executive Officer
May 9, 2025
Michael P. Connors
(Principal Executive Officer)
/s/Michael A. Sherrick
Executive Vice President and Chief Financial Officer
May 9, 2025
Michael A. Sherrick
(Principal Financial Officer and Principal Accounting Officer)
/s/Gerald S. Hobbs
Director
May 9, 2025
Gerald S. Hobbs
/s/ Samuel L. Molinaro Jr.
Director
May 9, 2025
Samuel L. Molinaro Jr.
/s/ Bruce N. Pfau
Director
May 9, 2025
Bruce N. Pfau
/s/ Christine Putur
Director
May 9, 2025
Christine Putur
/s/ Kalpana Raina
Director
May 9, 2025
Kalpana Raina