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<H5 align="left" style="page-break-before:always"><A HREF="#L41982toc">Table of Contents</A></H5><P>
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<TR valign="bottom">
    <TD align="left" valign="top"><I>As filed with the Securities and
Exchange Commission on March 1, 2011</I>
</TD>
    <TD>&nbsp;</TD>
    <TD align="right" valign="top">Registration No. 333-&#95;&#95;&#95;&#95;&#95;&#95;&#95;</TD>
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<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>WASHINGTON, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B><DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>

<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>REGISTRATION STATEMENT<BR>
UNDER<BR>
THE SECURITIES ACT OF 1933</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>WESCO International, Inc.</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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    <TD width="48%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="48%">&nbsp;</TD>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B><BR>
(State or other jurisdiction of incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>25-1723345</B><BR>
(I.R.S. Employer Identification No.)</TD>
</TR>
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</TABLE>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>225 West Station Square Drive<BR>
Suite&nbsp;700<BR>
Pittsburgh, Pennsylvania 15219</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Address of principal executive offices)</DIV>



<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Wesco International, Inc. 1999 Long-Term Incentive Plan</B><BR>
(Full title of the plan)
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Richard P. Heyse<BR>
Vice President and Chief Financial Officer<BR>
225 West Station Square Drive<BR>
Suite&nbsp;700<BR>
Pittsburgh, Pennsylvania 15219</B><BR>
(Name and address of agent for service)
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>(412)&nbsp;454-2200</B><BR>
(Telephone number, including area code, of agent for service)
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><DIV align="center"><DIV style="FONT-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated
filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &#147;large
accelerated filer,&#148; &#147;accelerated filer,&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2 of the
Exchange Act.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">(Check one):
</DIV>

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    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
</TR>
<TR></TR>
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<TR valign="bottom">
    <TD align="center" valign="top">Large accelerated filer <FONT style="font-family: Wingdings">&#254;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Accelerated filer <FONT style="font-family: Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Non-accelerated filer <FONT style="font-family: Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Smaller reporting company <FONT style="font-family: Wingdings">&#111;</FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap>(Do not check if a smaller reporting company)</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
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</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CALCULATION OF REGISTRATION FEE</B>
</DIV>

<DIV align="center">
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    <TD width="1%">&nbsp;</TD>
    <TD width="31%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="8%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="18%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="18%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="8%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="17" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="left">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Amount of</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="left">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount to be</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>offering price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>aggregate</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>registration</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD align="left" nowrap><B>Title of securities to be registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>registered</B><SUP style="FONT-size: 85%; vertical-align: text-top"> (1)</SUP></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>per share</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>offering price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>fee</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>

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    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD valign="top" style="border-top: 2px solid #000000"><DIV style="margin-left:0px; text-indent:-0px">Common Stock, par
value $0.01 per
share
</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" valign="bottom" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">2,920,890</TD>
    <TD nowrap valign="bottom" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>

<TD align="center" valign="bottom" style="border-top: 2px solid #000000">$55.49<SUP style="FONT-size: 85%; vertical-align: text-top">(2)</SUP>
</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>

<TD align="center" valign="bottom" style="border-top: 2px solid #000000">$162,080,186
</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>

<TD align="center" valign="bottom" style="border-top: 2px solid #000000">$18,818</td>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="17" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

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</TABLE>
</DIV>


<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left"><SUP style="FONT-size: 85%; vertical-align: text-top">(1)</SUP></TD>
    <TD>&nbsp;</TD>
    <TD>This Registration Statement also registers additional securities to be
offered or issued upon adjustments or changes made to registered securities by reason of any stock
splits, stock dividends or similar transactions as permitted by Rule 416(a) and Rule 416(b) under
the Securities Act of 1933, as amended (the &#147;Securities Act&#148;).</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left"><SUP style="FONT-size: 85%; vertical-align: text-top">(2)</SUP></TD>
    <TD>&nbsp;</TD>
    <TD>Estimated solely for the purpose of calculating the registration fee pursuant
to Rule&nbsp;457(h). The fee is calculated on the basis of the average of the high and low trading
prices for the Registrant&#146;s common stock on February 24, 2011, as reported on the New York Stock
Exchange Composite Tape.</TD>
</TR>

</TABLE>



<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>











<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- TOC -->
<A name="L41982toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
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</TR>
<TR><TD colspan="9"><A HREF="#L41982000">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#L41982001"> Item&nbsp;3. Incorporation of Documents by Reference</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#L41982002"> Item&nbsp;4. Description of Securities</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#L41982003"> Item&nbsp;5. Interests of Named Experts and Counsel</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#L41982004"> Item&nbsp;6. Indemnification of Directors and Officers</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#L41982005">Item&nbsp;7. Exemption from Registration Claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#L41982006">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#L41982007">Item&nbsp;9. Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#L41982008">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#L41982009">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="l41982exv4w1.htm">EX-4.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="l41982exv5w1.htm">EX-5.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="l41982exv23w1.htm">EX-23.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="l41982exv24w1.htm">EX-24.1</A></TD></TR>
</TABLE>
</CENTER>
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<H5 align="left" style="page-break-before:always"><A HREF="#L41982toc">Table of Contents</A></H5><P>

<!-- link1 "PART II" -->
<DIV align="left"><A NAME="L41982000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II<BR>
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>
</DIV>

<!-- link2 " Item&nbsp;3. Incorporation of Documents by Reference" -->
<DIV align="left"><A NAME="L41982001"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents filed by the Registrant with the Securities and Exchange
Commission (the &#147;Commission&#148;) pursuant to the Securities Exchange Act of 1934, as
amended (the &#147;Exchange Act&#148;), are incorporated by reference into this Registration
Statement:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s Annual Report on Form 10-K for the year ended December&nbsp;31, 2010,
as filed on February 25, 2011.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s Current Report on Form 8-K filed on January&nbsp;27, 2011.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All other reports filed by the Registrant pursuant to Section 13(a) or 15(d) of
the Exchange Act since December&nbsp;31, 2010.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The description of the Registrant&#146;s common stock contained in the Registrant&#146;s
Registration Statement on Form 8-A12B, including all amendments and reports updating
such description.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents filed by the Registrant with the Commission pursuant to Sections
13(a), 13(c), 14 and 15(d) of the Exchange Act after the date of this Registration
Statement, but prior to the filing of a post-effective amendment to this Registration
Statement which indicates that all securities offered by this Registration Statement
have been sold or which deregisters all such securities then remaining unsold, shall
be deemed to be incorporated by reference into this Registration Statement. Each
document incorporated by reference into this Registration Statement shall be deemed to
be a part of this Registration Statement from the date of filing of such document with
the Commission until the information contained therein is superseded or updated by any
subsequently filed document which is incorporated by reference into this Registration
Statement or by any document which constitutes part of the prospectus relating to the
1999 Long-Term Incentive Plan meeting the requirements of Section 10(a) of the
Securities Act.
</DIV>
<!-- link2 " Item&nbsp;4. Description of Securities" -->
<DIV align="left"><A NAME="L41982002"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of Securities.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The class of securities to be offered under this Registration Statement is
registered under Section&nbsp;12 of the Exchange Act.
</DIV>
<!-- link2 " Item&nbsp;5. Interests of Named Experts and Counsel" -->
<DIV align="left"><A NAME="L41982003"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;None.
</DIV>
<!-- link2 " Item&nbsp;6. Indemnification of Directors and Officers" -->
<DIV align="left"><A NAME="L41982004"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification of Directors and Officers.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;102(b)(7) of the General Corporation Law of the State of Delaware (the
&#147;DGCL&#148;) permits a corporation, in its certificate of incorporation, to limit or
eliminate the liability of directors to the corporation or its stockholders for monetary
damages for breaches of fiduciary duty, except for liability (a)&nbsp;for any breach of the
director&#146;s duty of loyalty to the corporation or its stockholders, (b)&nbsp;for acts or
omissions not in good faith or which involve intentional misconduct or a knowing
violation of law, (c)&nbsp;for the unlawful payment of a dividend or an unlawful stock
purchase or redemption under Section&nbsp;174 of the DGCL, or (d)&nbsp;for any transaction from
which the director derived an improper personal benefit. Article&nbsp;X of the Registrant&#146;s
Restated Certificate of Incorporation contains provisions intended to limit a director&#146;s
personal liability to the fullest extent permitted under the DGCL.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->II - 1<!-- /Folio -->
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#L41982toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under Section&nbsp;145 of the DGCL, a corporation has the power to indemnify directors
and officers under certain circumstances, subject to certain limitations, against
specified costs and expenses actually and reasonably incurred in connection with an
action, suit or proceeding, whether civil, criminal, administrative or investigative.
Article&nbsp;VI of the Registrant&#146;s By-Laws provides that the Registrant will indemnify any
person who was or is made or is threatened to be made a party or is otherwise involved
in any action, suit or proceeding, whether civil, criminal, administrative or
investigative by reason of the fact that such person, or an individual for whom such
person is the legal representative, is or was a director, officer, employee or agent of
the Registrant or is or was serving at the request of the Registrant as a director,
officer, employee or agent of another corporation or of a partnership, joint venture,
trust, enterprise or non-profit entity, against all liability and loss suffered and
expenses reasonably incurred by such person. Article&nbsp;VI of the Registrant&#146;s By-Laws
further permits the Registrant to maintain insurance on behalf of any person who is or
was or has agreed to become a director or officer of the Registrant, or is or was
serving at the request of the Registrant as a director or officer of another
corporation, partnership, joint venture, trust or other enterprise against any liability
asserted against such person and incurred by such person or on such person&#146;s behalf in
any such capacity, or arising out of such person&#146;s status as such, whether or not the
Registrant would have the power to indemnify such person against such liability under
the provisions of the Registrant&#146;s By-Laws.
</DIV>
<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="L41982005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from Registration Claimed.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<!-- link2 "Item&nbsp;8. Exhibits" -->
<DIV align="left"><A NAME="L41982006"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following exhibits are filed herewith or incorporated by reference as part of
this Registration Statement:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="88%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Exhibit No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">3.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Restated Certificate of Incorporation of the Registrant (incorporated by
reference to Exhibit&nbsp;3.1 to the Registrant&#146;s Registration Statement on Form
S-4 (No.&nbsp;333-70404)).</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">3.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Amended and Restated By-laws of the Registrant (incorporated by
reference to Exhibit&nbsp;3.1 to the Registrant&#146;s Current Report on Form&nbsp;8-K, dated
September&nbsp;28, 2009)).</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">4.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Wesco International, Inc 1999, Long-Term Incentive Plan, as amended
effective May&nbsp;21, 2008 (filed herewith).</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">5.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Opinion of K &#038; L Gates LLP (&#147;K&#038;L Gates&#148;) regarding the legality of the
shares being registered hereunder (filed herewith).</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of PricewaterhouseCoopers LLP (filed herewith).</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of K&#038;L Gates (included in the Opinion filed as Exhibit&nbsp;5.1).</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">24.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Power of Attorney (filed herewith).</DIV></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->II - 2<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#L41982toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link2 "Item&nbsp;9. Undertakings" -->
<DIV align="left"><A NAME="L41982007"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. Undertakings.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The undersigned Registrant hereby undertakes:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;To file, during any period in which offers of sales are being made, a
post-effective amendment to this Registration Statement:
</DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 6%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) To include any prospectus required by Section&nbsp;10(a)(3) of
the Securities Act;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 6%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 6%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Provided, however, that 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 periodic reports filed with or furnished to the
Commission by the Registrant pursuant to Section&nbsp;13 or Section 15(d) of the
Exchange Act that are incorporated by reference in this Registration Statement.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;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 <I>bona fide </I>offering
thereof.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;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.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the Registrant&#146;s
annual report pursuant to Section 13(a) or 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>bona
fide </I>offering thereof.
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">* * *
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(h)&nbsp;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.
</DIV>








<P align="center" style="font-size: 10pt"><!-- Folio -->II-3<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#L41982toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="L41982008"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act, 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
Pittsburgh, Commonwealth of Pennsylvania, on this 28th day of February, 2011.
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>WESCO INTERNATIONAL, INC.</B>
</DIV>


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>

<TD colspan="2" style="border-bottom: 1px solid #000000" align="center">
&nbsp;*</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Roy W. Haley&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Chairman&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, this
Registration Statement on Form S-8 has been signed by the following persons in the
capacities and on the date(s) indicated:
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="35%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="40%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="23%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><U>Signature</U></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><U>Capacity</U></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><U>Date</U></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Executive
Chairman</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Roy W. Haley
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
and President and Chief Executive
Officer</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
John J. Engel
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">(Principal Executive Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Vice
President and Chief Financial Officer</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Richard P. Heyse
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">
(Principal Financial Officer and Principal Accounting Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>

<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Sandra Beach Lin
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
George L. Miles, Jr.
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
John K. Morgan
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Steven A. Raymund
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
James L. Singleton
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Robert J. Tarr, Jr.
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Lynn M. Utter
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
and Senior Vice President and</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Stephen A. Van Oss
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief
Operating Officer
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
William J. Vareschi
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 28, 2011</TD>
</TR>
<!-- End Table Body -->
</TABLE>
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    <TD colspan="3" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">*By:&nbsp;&nbsp;</TD>

<TD colspan="2" style="border-bottom: 1px solid #000000" align="center">
/s/ Richard P. Heyse&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Attorney-in-Fact</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>

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<H5 align="left" style="page-break-before:always"><A HREF="#L41982toc">Table of Contents</A></H5><P>

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<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
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    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Exhibit No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

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<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">3.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Restated Certificate of Incorporation of the Registrant (incorporated by
reference to Exhibit&nbsp;3.1 to the Registrant&#146;s Registration Statement on Form
S-4 (No.&nbsp;333-70404)).</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
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</TR>
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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">3.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Amended and Restated By-laws of the Registrant (incorporated by
reference to Exhibit&nbsp;3.1 to the Registrant&#146;s Current Report on Form&nbsp;8-K,
dated September&nbsp;28, 2009).</DIV></TD>
</TR>
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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">4.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Wesco International, Inc 1999, Long-Term Incentive Plan, as amended
effective May&nbsp;21, 2008 (filed herewith).</DIV></TD>
</TR>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">5.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Opinion of K &#038; L Gates LLP (&#147;K&#038;L Gates&#148;) regarding the legality of
the shares being registered hereunder (filed herewith).</DIV></TD>
</TR>
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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
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</TR>
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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of PricewaterhouseCoopers LLP (filed herewith).</DIV></TD>
</TR>
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    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of K&#038;L Gates (included in the Opinion filed as Exhibit&nbsp;5.1).</DIV></TD>
</TR>
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    <TD align="right" valign="top">&nbsp;</TD>
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</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">24.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Power of Attorney (filed herewith).</DIV></TD>
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sv8
Table of Contents
As filed with the Securities and
Exchange Commission on March 1, 2011
Registration No. 333-_______
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
WESCO International, Inc.
(Exact name of registrant as specified in its charter)
Delaware
(State or other jurisdiction of incorporation or organization)
25-1723345
(I.R.S. Employer Identification No.)
225 West Station Square Drive
Suite 700
Pittsburgh, Pennsylvania 15219
(Address of principal executive offices)
Wesco International, Inc. 1999 Long-Term Incentive Plan
(Full title of the plan)
Richard P. Heyse
Vice President and Chief Financial Officer
225 West Station Square Drive
Suite 700
Pittsburgh, Pennsylvania 15219
(Name and address of agent for service)
(412) 454-2200
(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, or a smaller reporting company. See the definitions of "large
accelerated filer," "accelerated filer," and "smaller reporting company" in Rule 12b-2 of the
Exchange Act.
(Check one):
Large accelerated filer
þ
Accelerated filer
o
Non-accelerated filer
o
Smaller reporting company
o
(Do not check if a smaller reporting company)
CALCULATION OF REGISTRATION FEE
Proposed maximum
Proposed maximum
Amount of
Amount to be
offering price
aggregate
registration
Title of securities to be registered
registered
(1)
per share
offering price
fee
Common Stock, par
value $0.01 per
share
2,920,890
$55.49
(2)
$162,080,186
$18,818
(1)
This Registration Statement also registers additional securities to be
offered or issued upon adjustments or changes made to registered securities by reason of any stock
splits, stock dividends or similar transactions as permitted by Rule 416(a) and Rule 416(b) under
the Securities Act of 1933, as amended (the "Securities Act").
(2)
Estimated solely for the purpose of calculating the registration fee pursuant
to Rule 457(h). The fee is calculated on the basis of the average of the high and low trading
prices for the Registrant's common stock on February 24, 2011, as reported on the New York Stock
Exchange Composite Tape.
TABLE OF CONTENTS
PART II
Item 3. Incorporation of Documents by Reference
Item 4. Description of Securities
Item 5. Interests of Named Experts and Counsel
Item 6. Indemnification of Directors and Officers
Item 7. Exemption from Registration Claimed
Item 8. Exhibits
Item 9. Undertakings
SIGNATURES
EXHIBIT INDEX
EX-4.1
EX-5.1
EX-23.1
EX-24.1
Table of Contents
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
The following documents filed by the Registrant with the Securities and Exchange
Commission (the "Commission") pursuant to the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), are incorporated by reference into this Registration
Statement:
The Registrant's Annual Report on Form 10-K for the year ended December 31, 2010,
as filed on February 25, 2011.
The Registrant's Current Report on Form 8-K filed on January 27, 2011.
All other reports filed by the Registrant pursuant to Section 13(a) or 15(d) of
the Exchange Act since December 31, 2010.
The description of the Registrant's common stock contained in the Registrant's
Registration Statement on Form 8-A12B, including all amendments and reports updating
such description.
All documents filed by the Registrant with the Commission pursuant to Sections
13(a), 13(c), 14 and 15(d) of the Exchange Act after the date of this Registration
Statement, but prior to the filing of a post-effective amendment to this Registration
Statement which indicates that all securities offered by this Registration Statement
have been sold or which deregisters all such securities then remaining unsold, shall
be deemed to be incorporated by reference into this Registration Statement. Each
document incorporated by reference into this Registration Statement shall be deemed to
be a part of this Registration Statement from the date of filing of such document with
the Commission until the information contained therein is superseded or updated by any
subsequently filed document which is incorporated by reference into this Registration
Statement or by any document which constitutes part of the prospectus relating to the
1999 Long-Term Incentive Plan meeting the requirements of Section 10(a) of the
Securities Act.
Item 4. Description of Securities.
The class of securities to be offered under this Registration Statement is
registered under Section 12 of the Exchange Act.
Item 5. Interests of Named Experts and Counsel.
None.
Item 6. Indemnification of Directors and Officers.
Section 102(b)(7) of the General Corporation Law of the State of Delaware (the
"DGCL") permits a corporation, in its certificate of incorporation, to limit or
eliminate the liability of directors to the corporation or its stockholders for monetary
damages for breaches of fiduciary duty, except for liability (a) for any breach of the
director's duty of loyalty to the corporation or its stockholders, (b) for acts or
omissions not in good faith or which involve intentional misconduct or a knowing
violation of law, (c) for the unlawful payment of a dividend or an unlawful stock
purchase or redemption under Section 174 of the DGCL, or (d) for any transaction from
which the director derived an improper personal benefit. Article X of the Registrant's
Restated Certificate of Incorporation contains provisions intended to limit a director's
personal liability to the fullest extent permitted under the DGCL.
II - 1
Table of Contents
Under Section 145 of the DGCL, a corporation has the power to indemnify directors
and officers under certain circumstances, subject to certain limitations, against
specified costs and expenses actually and reasonably incurred in connection with an
action, suit or proceeding, whether civil, criminal, administrative or investigative.
Article VI of the Registrant's By-Laws provides that the Registrant will indemnify any
person who was or is made or is threatened to be made a party or is otherwise involved
in any action, suit or proceeding, whether civil, criminal, administrative or
investigative by reason of the fact that such person, or an individual for whom such
person is the legal representative, is or was a director, officer, employee or agent of
the Registrant or is or was serving at the request of the Registrant as a director,
officer, employee or agent of another corporation or of a partnership, joint venture,
trust, enterprise or non-profit entity, against all liability and loss suffered and
expenses reasonably incurred by such person. Article VI of the Registrant's By-Laws
further permits the Registrant to maintain insurance on behalf of any person who is or
was or has agreed to become a director or officer of the Registrant, or is or was
serving at the request of the Registrant as a director or officer of another
corporation, partnership, joint venture, trust or other enterprise against any liability
asserted against such person and incurred by such person or on such person's behalf in
any such capacity, or arising out of such person's status as such, whether or not the
Registrant would have the power to indemnify such person against such liability under
the provisions of the Registrant's By-Laws.
Item 7. Exemption from Registration Claimed.
Not applicable.
Item 8. Exhibits.
The following exhibits are filed herewith or incorporated by reference as part of
this Registration Statement:
Exhibit No.
Description
3.1
Restated Certificate of Incorporation of the Registrant (incorporated by
reference to Exhibit 3.1 to the Registrant's Registration Statement on Form
S-4 (No. 333-70404)).
3.2
Amended and Restated By-laws of the Registrant (incorporated by
reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K, dated
September 28, 2009)).
4.1
Wesco International, Inc 1999, Long-Term Incentive Plan, as amended
effective May 21, 2008 (filed herewith).
5.1
Opinion of K & L Gates LLP ("K&L Gates") regarding the legality of the
shares being registered hereunder (filed herewith).
23.1
Consent of PricewaterhouseCoopers LLP (filed herewith).
23.2
Consent of K&L Gates (included in the Opinion filed as Exhibit 5.1).
24.1
Power of Attorney (filed herewith).
II - 2
Table of Contents
Item 9. Undertakings.
(a) The undersigned Registrant hereby undertakes:
(1) To file, during any period in which offers of 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;
(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 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 periodic 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 this 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 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.
* * *
(h) 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.
II-3
Table of Contents
SIGNATURES
Pursuant to the requirements of the Securities Act, 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
Pittsburgh, Commonwealth of Pennsylvania, on this 28th day of February, 2011.
WESCO INTERNATIONAL, INC.
By:
*
Roy W. Haley
Chairman
Pursuant to the requirements of the Securities Act of 1933, as amended, this
Registration Statement on Form S-8 has been signed by the following persons in the
capacities and on the date(s) indicated:
Signature
Capacity
Date
*
Executive
Chairman
Roy W. Haley
February 28, 2011
*
Director
and President and Chief Executive
Officer
John J. Engel
(Principal Executive Officer)
February 28, 2011
*
Vice
President and Chief Financial Officer
Richard P. Heyse
(Principal Financial Officer and Principal Accounting Officer)
February 28, 2011
*
Director
Sandra Beach Lin
February 28, 2011
*
Director
George L. Miles, Jr.
February 28, 2011
*
Director
John K. Morgan
February 28, 2011
*
Director
Steven A. Raymund
February 28, 2011
*
Director
James L. Singleton
February 28, 2011
*
Director
Robert J. Tarr, Jr.
February 28, 2011
*
Director
Lynn M. Utter
February 28, 2011
*
Director
and Senior Vice President and
Stephen A. Van Oss
Chief
Operating Officer
February 28, 2011
*
Director
William J. Vareschi
February 28, 2011
*By:
/s/ Richard P. Heyse
Attorney-in-Fact
II - 1
Table of Contents
EXHIBIT INDEX
Exhibit No.
Description
3.1
Restated Certificate of Incorporation of the Registrant (incorporated by
reference to Exhibit 3.1 to the Registrant's Registration Statement on Form
S-4 (No. 333-70404)).
3.2
Amended and Restated By-laws of the Registrant (incorporated by
reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K,
dated September 28, 2009).
4.1
Wesco International, Inc 1999, Long-Term Incentive Plan, as amended
effective May 21, 2008 (filed herewith).
5.1
Opinion of K & L Gates LLP ("K&L Gates") regarding the legality of
the shares being registered hereunder (filed herewith).
23.1
Consent of PricewaterhouseCoopers LLP (filed herewith).
23.2
Consent of K&L Gates (included in the Opinion filed as Exhibit 5.1).
24.1
Power of Attorney (filed herewith).