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<TITLE>May 2, 2012 S8 DOC</TITLE>
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<B><FONT SIZE=1><P ALIGN="RIGHT">As filed with the Securities and Exchange Commission on May 2, 2012<BR>
Registration No. 333-
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B></FONT></TD>
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<B><FONT SIZE=5><P ALIGN="CENTER">UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B></FONT></TD>
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<B><FONT SIZE=3><P ALIGN="CENTER">Washington, D.C. 20549</B></FONT></TD>
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<FONT SIZE=1><P ALIGN="CENTER"><HR WIDTH="20%" SIZE=1></FONT></TD>
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<B><FONT SIZE=5><P ALIGN="CENTER">FORM&nbsp;S-8</B></FONT></TD>
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<B><FONT SIZE=5><P ALIGN="CENTER">REGISTRATION STATEMENT</B></FONT></TD>
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<B><I><FONT SIZE=3><P ALIGN="CENTER">Under<BR>
The Securities Act of 1933</B></I></FONT></TD>
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<FONT SIZE=1><P ALIGN="CENTER"><HR WIDTH="20%" SIZE=1></FONT></TD>
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<B><FONT SIZE=5><P ALIGN="CENTER">ServiceSource International, Inc.</B></FONT></TD>
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<B><FONT SIZE=1><P ALIGN="CENTER">(Exact name of Registrant as specified in its charter)</B></FONT></TD>
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<FONT SIZE=1><P ALIGN="CENTER"><HR WIDTH="20%" SIZE=1></FONT></TD>
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<TR><TD WIDTH="33%" VALIGN="TOP" COLSPAN=2>
<B><FONT SIZE=3><P ALIGN="CENTER">Delaware</B></FONT></TD>
<TD WIDTH="33%" VALIGN="TOP" COLSPAN=4>&nbsp;</TD>
<TD WIDTH="33%" VALIGN="TOP" COLSPAN=2>
<B><FONT SIZE=3><P ALIGN="CENTER">81-0578975</B></FONT></TD>
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<TR><TD WIDTH="33%" VALIGN="TOP" COLSPAN=2>
<B><FONT SIZE=1><P ALIGN="CENTER">(State or other jurisdiction of<BR>
incorporation or organization)</B></FONT></TD>
<TD WIDTH="33%" VALIGN="TOP" COLSPAN=4>&nbsp;</TD>
<TD WIDTH="33%" VALIGN="TOP" COLSPAN=2>
<B><FONT SIZE=1><P ALIGN="CENTER">(I.R.S. Employer<BR>
Identification Number)</B></FONT></TD>
</TR>
<TR><TD VALIGN="BOTTOM" COLSPAN=8>
<B><FONT SIZE=3><P ALIGN="CENTER">634 Second Street<BR>
                  San Francisco, California 94107</B></FONT></TD>
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<B><FONT SIZE=1><P ALIGN="CENTER">(Address of principal executive offices, including zip code)</B></FONT></TD>
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<FONT SIZE=1><P ALIGN="CENTER"><HR WIDTH="20%" SIZE=1></FONT></TD>
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<B><FONT SIZE=2><P ALIGN="CENTER">ServiceSource International, Inc. 2011 Equity Incentive Plan <BR>
                  ServiceSource International, Inc. 2011 Employee Stock Purchase Plan </B></FONT></TD>
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<B><FONT SIZE=1><P ALIGN="CENTER">(Full title of the plan)</B></FONT></TD>
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<FONT SIZE=1><P ALIGN="CENTER"><HR WIDTH="20%" SIZE=1></FONT></TD>
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<B><FONT SIZE=2><P ALIGN="CENTER">Michael A. Smerklo <BR>
                  Chief Executive Officer <BR>
                  ServiceSource International, Inc. <BR>
                  634 Second Street <BR>
                  San Francisco, California 94107 <BR>
                  (415) 901-6030 </B></FONT></TD>
</TR>
<TR><TD VALIGN="TOP" COLSPAN=8>
<B><FONT SIZE=1><P ALIGN="CENTER">(Name, address and telephone number, including area code, of agent for
service)</B></FONT></TD>
</TR>
<TR><TD VALIGN="TOP" COLSPAN=8 HEIGHT=13>
<FONT SIZE=1><P ALIGN="CENTER"><HR WIDTH="20%" SIZE=1></FONT></TD>
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<B><I><FONT SIZE=2><P ALIGN="CENTER">Copies to:</B></I></FONT></TD>
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<B><FONT SIZE=2><P ALIGN="CENTER">Tony Jeffries <BR>
                  Wilson Sonsini Goodrich &amp; Rosati, P.C. <BR>
                  650 Page Mill Road <BR>
                  Palo Alto, California 94304 <BR>
                  (650) 493-9300</B></FONT></TD>
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<FONT SIZE=1><P ALIGN="CENTER"><HR WIDTH="20%" SIZE=1></FONT></TD>
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<FONT SIZE=2><P>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 &quot;large accelerated filer,&quot; &quot;accelerated filer&quot; and
&quot;smaller reporting company&quot; in Rule&nbsp;12b-2 of the Exchange Act.</FONT></TD>
</TR>
<TR><TD VALIGN="TOP" COLSPAN=8>&nbsp;</TD>
</TR>
<TR><TD WIDTH="50%" VALIGN="TOP" COLSPAN=4>
<FONT SIZE=1><P>Large accelerated filer  <FONT FACE="Wingdings">&#111;</FONT></TD>
<TD WIDTH="50%" VALIGN="TOP" COLSPAN=4>
<FONT SIZE=1><P ALIGN="RIGHT">Accelerated filer <FONT FACE="Wingdings">&#111;</FONT></TD>
</TR>
<TR><TD WIDTH="50%" VALIGN="TOP" COLSPAN=4>
<FONT SIZE=1><P>Non-accelerated filer& <FONT FACE="Wingdings">&#120;</FONT><FONT SIZE=1> (do not check if a smaller reporting company)</FONT></TD>
<TD WIDTH="50%" VALIGN="TOP" COLSPAN=4>
<FONT SIZE=1><P ALIGN="RIGHT">Smaller reporting company <FONT FACE="Wingdings">&#111;</FONT></TD>
</TR>
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<FONT SIZE=1><P ALIGN="CENTER"><HR WIDTH="20%" SIZE=1></FONT></TD>
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<TR><TD VALIGN="TOP" COLSPAN=8>
<B><FONT SIZE=3><P ALIGN="CENTER">CALCULATION OF REGISTRATION FEE</B></FONT></TD>
</TR>
<TR><TD WIDTH="32%" VALIGN="BOTTOM">
<B><FONT SIZE=1><P ALIGN="CENTER">Title of Securities to be Registered</B></FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<B><FONT SIZE=1><P ALIGN="CENTER">Amount to be<BR>
Registered(1)</B></FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<B><FONT SIZE=1><P ALIGN="CENTER">Proposed Maximum Offering Price Per<BR>
Share</B></FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<B><FONT SIZE=1><P ALIGN="CENTER">Proposed Maximum<BR>
Aggregate Offering<BR>
Price</B></FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM">
<B><FONT SIZE=1><P ALIGN="CENTER"><BR>
Amount of<BR>
Registration Fee</B></FONT></TD>
</TR>
<TR><TD WIDTH="32%" VALIGN="TOP">

<FONT SIZE=1><P>Common stock, $0.0001 par value per share:
</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>&nbsp;</TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>&nbsp;</TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>&nbsp;</TD>
<TD WIDTH="17%" VALIGN="BOTTOM">&nbsp;</TD>
</TR>
<TR><TD WIDTH="32%" VALIGN="TOP">

<FONT SIZE=1><P>- To be issued under the 2011 Equity Incentive Plan
</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<FONT SIZE=1><P ALIGN="CENTER">2,902,697(2)</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<FONT SIZE=1><P ALIGN="CENTER">$15.15(3)</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<FONT SIZE=1><P ALIGN="CENTER">$43,975,859.55</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM">
<FONT SIZE=1><P ALIGN="CENTER">$5,039.64</FONT></TD>
</TR>
<TR><TD WIDTH="32%" VALIGN="TOP">

<FONT SIZE=1><P>- To be issued under the 2011 Employee Stock Purchase Plan
</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<FONT SIZE=1><P ALIGN="CENTER">725,674(4)</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<FONT SIZE=1><P ALIGN="CENTER">$12.88(5)</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<FONT SIZE=1><P ALIGN="CENTER">$9,346,681.12</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM">
<FONT SIZE=1><P ALIGN="CENTER">$1,071.13</FONT></TD>
</TR>
<TR><TD WIDTH="32%" VALIGN="TOP">

<FONT SIZE=1><P>TOTAL:
</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<FONT SIZE=1><P ALIGN="CENTER">3,628,371</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>&nbsp;</TD>
<TD WIDTH="17%" VALIGN="BOTTOM" COLSPAN=2>
<FONT SIZE=1><P ALIGN="CENTER">$53,322,540.67</FONT></TD>
<TD WIDTH="17%" VALIGN="BOTTOM">
<FONT SIZE=1><P ALIGN="CENTER">$6,110.77</FONT></TD>
</TR>
</TABLE>
</CENTER></P>

<P ALIGN="CENTER"><CENTER><TABLE BORDER=0 CELLSPACING=1 WIDTH=99%>
<TR>
<TD WIDTH="3%" VALIGN="TOP">
<FONT SIZE=1><P>(1)
</FONT></TD>
<TD WIDTH="97%" VALIGN="TOP">
<FONT SIZE=1><P>
Pursuant to Rule&nbsp;416(a) of the Securities Act of 1933, as amended, this Registration Statement
shall also cover any additional shares of the Registrant's common stock that become issuable under the 2011 Equity Incentive Plan
(&quot;2011 Plan&quot;) and the 2011 Employee Stock Purchase Plan (&quot;2011 ESPP&quot;) by reason of any stock dividend,
stock split, recapitalization or other similar transaction effected without receipt of consideration that increases the number of the
Registrant's outstanding shares of common stock.</P>
</FONT></TD>
</TR>
<TR>
<TD WIDTH="3%" VALIGN="TOP">
<FONT SIZE=1><P>(2)
</FONT></TD>
<TD WIDTH="97%" VALIGN="TOP">
<FONT SIZE=1><P>
Reflects an automatic annual increase on January&nbsp;1, 2012 to the number of shares of the Registrant's common
stock reserved for issuance under the 2011 Plan, which annual increase is provided for in the 2011 Plan.</P>
</FONT></TD>
</TR>
<TR>
<TD WIDTH="3%" VALIGN="TOP">
<FONT SIZE=1><P>(3)
</FONT></TD>
<TD WIDTH="97%" VALIGN="TOP">
<FONT SIZE=1><P>
Estimated in accordance with Rule&nbsp;457(h) solely for purposes of calculating the registration fee on the basis of
$15.15, the average of the high and low prices of Registrant's common stock as reported on the NASDAQ Global Market on May 1, 2012.</P>
</FONT></TD>
</TR>
<TR>
<TD WIDTH="3%" VALIGN="TOP">
<FONT SIZE=1><P>(4)
</FONT></TD>
<TD WIDTH="97%" VALIGN="TOP">
<FONT SIZE=1><P>
Reflects an automatic annual increase on January&nbsp;1, 2012 to the number of shares of the Registrant's common
stock reserved for issuance under the 2011 ESPP, which annual increase is provided for in the 2011 ESPP.</P>
</FONT></TD>
</TR>
<TR>
<TD WIDTH="3%" VALIGN="TOP">
<FONT SIZE=1><P>(5)
</FONT></TD>
<TD WIDTH="97%" VALIGN="TOP">
<FONT SIZE=1><P>
Estimated in accordance with Rule&nbsp;457(h) solely for the purpose of calculating the registration fee on the basis of
85% of $15.15, the average of the high and low prices of Registrant's common stock as reported on the NASDAQ Global Market on
May 1, 2012.  Pursuant to the 2011 ESPP, the purchase price of the shares of common stock will be 85% of the lower of the fair market
value of the common stock on the first trading day of the offering period or on the last day of the offering period.
</FONT></TD>
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<B><FONT SIZE=2><P ALIGN="CENTER">PART I</P>
<P ALIGN="CENTER">INFORMATION REQUIRED IN THE PROSPECTUS</P>
</B><P>The documents containing the information specified in Item 1 and Item 2 of this Registration Statement on Form&nbsp;S-8
(the &quot;Registration Statement&quot;) will be sent or given to employees, officers, directors or others as specified by
Rule&nbsp;428(b)(1) under the Securities Act of 1933, as amended (the &quot;Securities Act&quot;).  In accordance with the rules
and regulations of the Securities and Exchange Commission (the &quot;Commission&quot;) and the instructions to the Registration
Statement, such documents are not being filed with the Commission either as part of this Registration Statement or as prospectuses or
prospectus supplements pursuant to Rule&nbsp;424.</P>

<B><P ALIGN="CENTER">PART II</P>
<P ALIGN="CENTER">INFORMATION REQUIRED IN REGISTRATION STATEMENT</P>
<P>Item 3.  Incorporation of Documents by Reference.</P>
</B><P>ServiceSource International, Inc. (the &quot;Registrant&quot;) hereby incorporates by reference into this Registration
Statement the following documents previously filed with the Securities and Exchange Commission:</P>

<P>(1) The Registrant's Annual Report on Form&nbsp;10-K (File No.001-35108)
for its fiscal year ended December 31, 2011, filed with the Commission on
March 6, 2012 pursuant to Section&nbsp;13(a) of the Securities Exchange Act of 1934, as amended (the &quot;Exchange
Act&quot;);</P>

<P>(2) The Registrant's Current Reports on Form 8-K filed with the Commission on February 10, 2012 and February 23, 2012;
and</P>

<P>(3) The description of the Registrant's Common Stock contained in the Company's Registration Statement on Form 8-A
(File No. 001-35108) filed with the Commission on March 23, 2011, pursuant to Section&nbsp;12(b) of
the Securities Exchange Act of 1934, as amended (the &quot;Exchange Act&quot;), including any amendment or report filed for the
purpose of updating such description.</P>

<P>All documents filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14 and 15(d) of the Exchange Act on or after the
date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement that indicates that
all securities offered have been sold or that deregisters all securities then remaining unsold shall be deemed to be incorporated by
reference in this Registration Statement and to be part hereof from the date of filing of such documents;<I> provided</I>,
<I>however</I>, that documents or information deemed to have been furnished and not filed in accordance with the rules of the
Commission shall not be deemed incorporated by reference into this Registration Statement. Any statement contained in a document
incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained herein or in any subsequently filed document which also 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.</P>

<B><P>Item 4.  Description of Securities.</P>
</B><P>Not applicable.</P>
<B><P>Item 5.  Interests of Named Experts and Counsel.</P>
</B><P>Not applicable.</P>

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<B><P>Item 6.  Indemnification of Directors and Officers.</P>
</B><P>Section&nbsp;145 of the Delaware General Corporation Law authorizes a corporation's board of directors to grant, and
authorizes a court to award, indemnity to officers, directors and other corporate agents under certain circumstances.</P>
<P>As permitted by Section&nbsp;102(b)(7) of the Delaware General Corporation Law, the Registrant's certificate of incorporation,
as currently in effect, includes provisions that eliminate the personal liability of its directors for monetary damages for breach of their
fiduciary duty as directors.  To the extent Section&nbsp;102(b)(7) is interpreted, or the Delaware General Corporation Law is
amended, to allow similar protections for officers of a corporation, such provisions of the registrant's certificate of incorporation shall
also extend to those persons.</P>
<P>In addition, as permitted by Section&nbsp;145 of the Delaware General Corporation Law, the amended and restated bylaws of
the Registrant, as currently in effect, provide that:</P>



<UL>
<P><LI>The Registrant shall indemnify its directors and officers for serving the Registrant in those capacities or for serving other business
enterprises at the Registrant's request, to the fullest extent permitted by Delaware law.  Delaware law provides that a corporation may
indemnify such person if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to
the best interests of the Registrant and, with respect to any criminal proceeding, had no reasonable cause to believe such person's
conduct was unlawful.</LI>
<P><LI>The Registrant may, in its discretion, indemnify employees and agents in those circumstances where indemnification is permitted
by applicable law.</LI>
<P><LI>The Registrant is required to advance expenses, as incurred, to its directors and officers in connection with defending a
proceeding, except that such director or officer shall undertake to repay such advances if it is ultimately determined that such person is
not entitled to indemnification.</LI>
<P><LI>The Registrant will not be obligated pursuant to the amended and restated bylaws to indemnify a person with respect to
proceedings initiated by that person, except with respect to proceedings authorized by the Registrant's board of directors or brought to
enforce a right to indemnification.</LI>
<P><LI>The rights conferred in the amended and restated bylaws are not exclusive, and the Registrant is authorized to enter into
indemnification agreements with its directors, officers, employees and agents and to obtain insurance to indemnify such persons.</LI>
<P><LI>The Registrant may not retroactively amend the bylaw provisions to reduce its indemnification obligations to directors, officers,
employees and agents.</LI>
</UL>

<P>In addition, the Registrant's practice is to enter into separate indemnification agreements with each of its directors and officers that
provide the maximum indemnity allowed to directors and officers by Section&nbsp;145 of the Delaware General Corporation Law
and also provides for certain additional procedural protections.</P>
<P>These indemnification provisions and the indemnification agreements entered into between the Registrant and its officers and
directors may be sufficiently broad to permit indemnification of the Registrant's officers and directors for liabilities (including
reimbursement of expenses incurred) arising under the Securities Act.</P>
<P>The Registrant has purchased and intends to maintain insurance on behalf of each person who is or was a director or officer of the
Registrant against any loss arising from any claim asserted against him or her and incurred by him or her in any such capacity, subject
to certain exclusions. </P>
<B><P>Item 7.  Exemption from Registration Claimed.</P>
</B><P>Not applicable.</P>

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<B><P>Item 8.  Exhibits.</P>
</B><P>See the Index to Exhibits following the signature page hereto. </P>
<B><P>Item 9.  Undertakings.</P>
</B><P>A. The undersigned Registrant hereby undertakes:</P><DIR>
<DIR>

<P>(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration
statement:</P><DIR>
<DIR>

<P>(i) To include any prospectus required by Section&nbsp;10(a)(3) of the Securities Act of 1933;</P>
<P>(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 prospectus filed with the Commission pursuant to Rule&nbsp;424(b) if, in the
aggregate, the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set
forth in the &quot;Calculation of Registration Fee&quot; table in the effective registration statement;</P>
<P>(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.</P></DIR>
</DIR>

<I><P>Provided</I>, <I>however</I>, that paragraphs (A)(1)(i) and (A)(1)(ii) 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&nbsp;13 or Section&nbsp;15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in
this registration statement.</P>
<P>(2) That, for the purpose of determining any liability under the Securities Act of 1933, 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.</P>
<P>(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.</P></DIR>
</DIR>

<P>B. The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933,
each filing of the Registrant's annual report pursuant to Section&nbsp;13(a) or Section&nbsp;15(d) of the Securities Exchange Act
of 1934 (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section&nbsp;15(d) of the
Securities Exchange Act of 1934) 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.</P>

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<P>C. Insofar as indemnification for liabilities arising under the Securities Act of 1933 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 Securities and Exchange Commission such indemnification is against public policy as expressed in the 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 of 1933 and will be governed
by the final adjudication of such issue.</P>

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<B><FONT SIZE=2><P ALIGN="CENTER">SIGNATURES</P>
</B><P>Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds
to believe that it meets all of the requirements for filing on Form&nbsp;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 San Francisco, State of California, on May 2,
2012</P><DIR>
<DIR>
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<B><P>SERVICESOURCE INTERNATIONAL, INC.</P>
</B><P>By:&#9;<U> /s/ Michael A. Smerklo&#9;<BR>
</U>   &#9;Michael A. Smerklo<BR>
   &#9;Chief Executive Officer</P></DIR>
</DIR>
</DIR>
</DIR>
</DIR>
</DIR>
</DIR>
</DIR>
</DIR>
</DIR>
</DIR>
</DIR>
</DIR>

<B><P ALIGN="CENTER">POWER OF ATTORNEY</P>
</B><P>KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and
appoints Michael A. Smerklo and David S. Oppenheimer, and each of them, as his true and lawful attorney in fact and agent with full
power of substitution, for him in any and all capacities, to sign any and all amendments to this Registration Statement on Form S-8
(including post effective amendments), and to file the same, with all exhibits thereto and other documents in connection therewith, with
the Securities and Exchange Commission, granting unto said attorney in fact, proxy and agent full power and authority to do and
perform each and every act and thing requisite and necessary to be done in connection therewith, as fully for all intents and purposes
as he might or could do in person, hereby ratifying and confirming all that said attorney in fact, proxy and agent, or his substitute, may
lawfully do or cause to be done by virtue hereof.</P>
<P>Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form&nbsp;S-8 has been signed by
the following persons in the capacities and on the dates indicated below:</P>

<TABLE CELLSPACING=0 BORDER=0 CELLPADDING=7 WIDTH=654 DIR="LTR">
<TR><TD WIDTH="33%" VALIGN="BOTTOM">
<B><FONT SIZE=2><P ALIGN="CENTER">Signature</B></FONT></TD>
<TD WIDTH="47%" VALIGN="BOTTOM">
<B><FONT SIZE=2><P ALIGN="CENTER">Title</B></FONT></TD>
<TD WIDTH="20%" VALIGN="BOTTOM">
<B><FONT SIZE=2><P ALIGN="CENTER">Date</B></FONT></TD>
</TR>
<TR><TD WIDTH="33%" VALIGN="TOP">
<U><FONT SIZE=2><P ALIGN="CENTER">/s/ Michael A. Smerklo&#9;<BR>
</U>Michael A. Smerklo </FONT></TD>
<TD WIDTH="47%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Chairman of the Board and Chief Executive Officer<BR>
                   (Principal Executive Officer)</FONT></TD>
<TD WIDTH="20%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">May 2, 2012</FONT></TD>
</TR>
<TR><TD WIDTH="33%" VALIGN="TOP">
<U><FONT SIZE=2><P ALIGN="CENTER">/s/ David S. Oppenheimer&#9;<BR>
</U>David S. Oppenheimer</FONT></TD>
<TD WIDTH="47%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Chief Financial Officer<BR>
                   (Principal Financial and Accounting Officer)</FONT></TD>
<TD WIDTH="20%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">May 2, 2012</FONT></TD>
</TR>
<TR><TD WIDTH="33%" VALIGN="BOTTOM">
<U><FONT SIZE=2><P ALIGN="CENTER">/s/ Steven M. Cakebread&#9;<BR>
</U>Steven M. Cakebread</FONT></TD>
<TD WIDTH="47%" VALIGN="MIDDLE">
<FONT SIZE=2><P>Director</FONT></TD>
<TD WIDTH="20%" VALIGN="MIDDLE">
<FONT SIZE=2><P ALIGN="CENTER">May 2, 2012</FONT></TD>
</TR>
<TR><TD WIDTH="33%" VALIGN="BOTTOM">
<U><FONT SIZE=2><P ALIGN="CENTER">/s/ Marc F. McMorris&#9;<BR>
</U>Marc F. McMorris</FONT></TD>
<TD WIDTH="47%" VALIGN="MIDDLE">
<FONT SIZE=2><P>Director</FONT></TD>
<TD WIDTH="20%" VALIGN="MIDDLE">
<FONT SIZE=2><P ALIGN="CENTER">May 2, 2012</FONT></TD>
</TR>
<TR><TD WIDTH="33%" VALIGN="BOTTOM">
<U><FONT SIZE=2><P ALIGN="CENTER">/s/ Bruce W. Dunlevie&#9;<BR>
</U>Bruce W. Dunlevie</FONT></TD>
<TD WIDTH="47%" VALIGN="MIDDLE">
<FONT SIZE=2><P>Director</FONT></TD>
<TD WIDTH="20%" VALIGN="MIDDLE">
<FONT SIZE=2><P ALIGN="CENTER">May 2, 2012</FONT></TD>
</TR>
<TR><TD WIDTH="33%" VALIGN="BOTTOM">
<U><FONT SIZE=2><P ALIGN="CENTER">/s/ Anthony Zingale&#9;<BR>
</U>Anthony Zingale</FONT></TD>
<TD WIDTH="47%" VALIGN="MIDDLE">
<FONT SIZE=2><P>Director</FONT></TD>
<TD WIDTH="20%" VALIGN="MIDDLE">
<FONT SIZE=2><P ALIGN="CENTER">May 2, 2012</FONT></TD>
</TR>
<TR><TD WIDTH="33%" VALIGN="BOTTOM">
<U><FONT SIZE=2><P ALIGN="CENTER">/s/ James C. Madden, V&#9;<BR>
</U>James C. Madden, V</FONT></TD>
<TD WIDTH="47%" VALIGN="MIDDLE">
<FONT SIZE=2><P>Director</FONT></TD>
<TD WIDTH="20%" VALIGN="MIDDLE">
<FONT SIZE=2><P ALIGN="CENTER">May 2, 2012</FONT></TD>
</TR>
<TR><TD WIDTH="33%" VALIGN="BOTTOM">
<U><FONT SIZE=2><P ALIGN="CENTER">/s/ Barry D. Reynolds&#9;<BR>
</U>Barry D. Reynolds</FONT></TD>
<TD WIDTH="47%" VALIGN="MIDDLE">
<FONT SIZE=2><P>Director</FONT></TD>
<TD WIDTH="20%" VALIGN="MIDDLE">
<FONT SIZE=2><P ALIGN="CENTER">May 2, 2012</FONT></TD>
</TR>
<TR><TD WIDTH="33%" VALIGN="BOTTOM">
<U><FONT SIZE=2><P ALIGN="CENTER">/s/ Thomas F. Mendoza&#9;<BR>
</U>Thomas F. Mendoza</FONT></TD>
<TD WIDTH="47%" VALIGN="MIDDLE">
<FONT SIZE=2><P>Director</FONT></TD>
<TD WIDTH="20%" VALIGN="MIDDLE">
<FONT SIZE=2><P ALIGN="CENTER">May 2, 2012</FONT></TD>
</TR>
</TABLE>

<FONT SIZE=2><P>&nbsp;</P>

<HR WIDTH="100%">
<P style="PAGE-BREAK-BEFORE: always" align=left>


<B><P>INDEX TO EXHIBITS</P>
</B></FONT><FONT SIZE=3></FONT>

<TABLE CELLSPACING=3 BORDER=0 CELLPADDING=7 WIDTH=655 DIR="LTR">
<TR><TD WIDTH="8%" VALIGN="BOTTOM">&nbsp;</TD>
<TD WIDTH="49%" VALIGN="BOTTOM">&nbsp;</TD>
<TD STYLE="border-bottom: black 1.5pt solid" WIDTH="43%" VALIGN="BOTTOM" COLSPAN=3>
<B><FONT SIZE=1><P ALIGN="CENTER">Incorporated by Reference Herein</B></FONT></TD>
</TR>
<TR>
<TD STYLE="border-bottom: black 1.5pt solid" WIDTH="8%" VALIGN="BOTTOM">
<B><FONT SIZE=1><P ALIGN="CENTER">Exhibit<BR>
Number</B></FONT></TD>
<TD STYLE="border-bottom: black 1.5pt solid" WIDTH="49%" VALIGN="BOTTOM">
<B><FONT SIZE=1><P ALIGN="CENTER">Description</B></FONT></TD>
<TD STYLE="border-bottom: black 1.5pt solid" WIDTH="8%" VALIGN="BOTTOM">
<B><FONT SIZE=1><P ALIGN="CENTER">Exhibit</B></FONT></TD>
<TD STYLE="border-bottom: black 1.5pt solid" WIDTH="18%" VALIGN="BOTTOM">
<B><FONT SIZE=1><P ALIGN="CENTER">Form/File No.</B></FONT></TD>
<TD STYLE="border-bottom: black 1.5pt solid" WIDTH="16%" VALIGN="BOTTOM">
<B><FONT SIZE=1><P ALIGN="CENTER">Filing Date</B></FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">4.1</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP">
<FONT SIZE=2><P>Specimen common stock certificate of the Registrant </FONT></TD>
<TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">4.3</FONT></TD>
<TD WIDTH="18%" VALIGN="TOP">
<FONT SIZE=2><P>Form S-1/A<BR>
(No. 333-71271)</FONT></TD>
<TD WIDTH="16%" VALIGN="TOP">
<FONT SIZE=2><P>March 11, 2011</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">5.1</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP">
<FONT SIZE=2><P>Opinion of Wilson Sonsini Goodrich&nbsp;&amp; Rosati, Professional Corporation</FONT></TD>
<TD WIDTH="8%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="18%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="16%" VALIGN="TOP">&nbsp;</TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">23.1</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP">
<FONT SIZE=2><P>Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm</FONT></TD>
<TD WIDTH="8%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="18%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="16%" VALIGN="TOP">&nbsp;</TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">23.2</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP">
<FONT SIZE=2><P>Consent of Wilson Sonsini Goodrich&nbsp;&amp; Rosati, Professional Corporation (contained in
Exhibit&nbsp;5.1 hereto)</FONT></TD>
<TD WIDTH="8%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="18%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="16%" VALIGN="TOP">&nbsp;</TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">24.1</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP">
<FONT SIZE=2><P>Power of Attorney (contained on signature page hereto)</FONT></TD>
<TD WIDTH="8%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="18%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="16%" VALIGN="TOP">&nbsp;</TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">99.1</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP">
<FONT SIZE=2><P>2011 Equity Incentive Plan and forms of agreements thereunder </FONT></TD>
<TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">4.4</FONT></TD>
<TD WIDTH="18%" VALIGN="TOP">
<FONT SIZE=2><P>Form S-8<BR>
(No. 333-173116)</FONT></TD>
<TD WIDTH="16%" VALIGN="TOP">
<FONT SIZE=2><P>March 28, 2011</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">99.2</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP">
<FONT SIZE=2><P>2011 Equity Incentive Plan form of Restricted Stock Award Agreement</FONT></TD>
<TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">10.1</FONT></TD>
<TD WIDTH="18%" VALIGN="TOP">
<FONT SIZE=2><P>Form 8-K<BR>
(No. 001-35108)</FONT></TD>
<TD WIDTH="16%" VALIGN="TOP">
<FONT SIZE=2><P>February 10, 2012</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">99.3</FONT></TD>
<TD WIDTH="49%" VALIGN="TOP">
<FONT SIZE=2><P>2011 Employee Stock Purchase Plan and form of agreement thereunder</FONT></TD>
<TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">4.5</FONT></TD>
<TD WIDTH="18%" VALIGN="TOP">
<FONT SIZE=2><P>Form S-8<BR>
(No. 333-173116)</FONT></TD>
<TD WIDTH="16%" VALIGN="TOP">
<FONT SIZE=2><P>March 28, 2011</FONT></TD>
</TR>
</TABLE>




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May 2, 2012 S8 DOC
As filed with the Securities and Exchange Commission on May 2, 2012
Registration No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
Under
The Securities Act of 1933
ServiceSource International, Inc.
(Exact name of Registrant as specified in its charter)
Delaware
81-0578975
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer
Identification Number)
634 Second Street
San Francisco, California 94107
(Address of principal executive offices, including zip code)
ServiceSource International, Inc. 2011 Equity Incentive Plan
ServiceSource International, Inc. 2011 Employee Stock Purchase Plan
(Full title of the plan)
Michael A. Smerklo
Chief Executive Officer
ServiceSource International, Inc.
634 Second Street
San Francisco, California 94107
(415) 901-6030
(Name, address and telephone number, including area code, of agent for
service)
Copies to:
Tony Jeffries
Wilson Sonsini Goodrich & Rosati, P.C.
650 Page Mill Road
Palo Alto, California 94304
(650) 493-9300
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.
Large accelerated filer
o
Accelerated filer
o
Non-accelerated filer&
x
(do not check if a smaller reporting company)
Smaller reporting company
o
CALCULATION OF REGISTRATION FEE
Title of Securities to be Registered
Amount to be
Registered(1)
Proposed Maximum Offering Price Per
Share
Proposed Maximum
Aggregate Offering
Price
Amount of
Registration Fee
Common stock, $0.0001 par value per share:
- To be issued under the 2011 Equity Incentive Plan
2,902,697(2)
$15.15(3)
$43,975,859.55
$5,039.64
- To be issued under the 2011 Employee Stock Purchase Plan
725,674(4)
$12.88(5)
$9,346,681.12
$1,071.13
TOTAL:
3,628,371
$53,322,540.67
$6,110.77
(1)
Pursuant to Rule 416(a) of the Securities Act of 1933, as amended, this Registration Statement
shall also cover any additional shares of the Registrant's common stock that become issuable under the 2011 Equity Incentive Plan
("2011 Plan") and the 2011 Employee Stock Purchase Plan ("2011 ESPP") by reason of any stock dividend,
stock split, recapitalization or other similar transaction effected without receipt of consideration that increases the number of the
Registrant's outstanding shares of common stock.
(2)
Reflects an automatic annual increase on January 1, 2012 to the number of shares of the Registrant's common
stock reserved for issuance under the 2011 Plan, which annual increase is provided for in the 2011 Plan.
(3)
Estimated in accordance with Rule 457(h) solely for purposes of calculating the registration fee on the basis of
$15.15, the average of the high and low prices of Registrant's common stock as reported on the NASDAQ Global Market on May 1, 2012.
(4)
Reflects an automatic annual increase on January 1, 2012 to the number of shares of the Registrant's common
stock reserved for issuance under the 2011 ESPP, which annual increase is provided for in the 2011 ESPP.
(5)
Estimated in accordance with Rule 457(h) solely for the purpose of calculating the registration fee on the basis of
85% of $15.15, the average of the high and low prices of Registrant's common stock as reported on the NASDAQ Global Market on
May 1, 2012.  Pursuant to the 2011 ESPP, the purchase price of the shares of common stock will be 85% of the lower of the fair market
value of the common stock on the first trading day of the offering period or on the last day of the offering period.
PART I
INFORMATION REQUIRED IN THE PROSPECTUS
The documents containing the information specified in Item 1 and Item 2 of this Registration Statement on Form S-8
(the "Registration Statement") will be sent or given to employees, officers, directors or others as specified by
Rule 428(b)(1) under the Securities Act of 1933, as amended (the "Securities Act").  In accordance with the rules
and regulations of the Securities and Exchange Commission (the "Commission") and the instructions to the Registration
Statement, such documents are not being filed with the Commission either as part of this Registration Statement or as prospectuses or
prospectus supplements pursuant to Rule 424.
PART II
INFORMATION REQUIRED IN REGISTRATION STATEMENT
Item 3.  Incorporation of Documents by Reference.
ServiceSource International, Inc. (the "Registrant") hereby incorporates by reference into this Registration
Statement the following documents previously filed with the Securities and Exchange Commission:
(1) The Registrant's Annual Report on Form 10-K (File No.001-35108)
for its fiscal year ended December 31, 2011, filed with the Commission on
March 6, 2012 pursuant to Section 13(a) of the Securities Exchange Act of 1934, as amended (the "Exchange
Act");
(2) The Registrant's Current Reports on Form 8-K filed with the Commission on February 10, 2012 and February 23, 2012;
and
(3) The description of the Registrant's Common Stock contained in the Company's Registration Statement on Form 8-A
(File No. 001-35108) filed with the Commission on March 23, 2011, pursuant to Section 12(b) of
the Securities Exchange Act of 1934, as amended (the "Exchange Act"), including any amendment or report filed for the
purpose of updating such description.
All documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act on or after the
date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement that indicates that
all securities offered have been sold or that deregisters all securities then remaining unsold shall be deemed to be incorporated by
reference in this Registration Statement and to be part hereof from the date of filing of such documents;
provided
,
however
, that documents or information deemed to have been furnished and not filed in accordance with the rules of the
Commission shall not be deemed incorporated by reference into this Registration Statement. Any statement contained in a document
incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained herein or in any subsequently filed document which also 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.
Item 4.  Description of Securities.
Not applicable.
Item 5.  Interests of Named Experts and Counsel.
Not applicable.
Item 6.  Indemnification of Directors and Officers.
Section 145 of the Delaware General Corporation Law authorizes a corporation's board of directors to grant, and
authorizes a court to award, indemnity to officers, directors and other corporate agents under certain circumstances.
As permitted by Section 102(b)(7) of the Delaware General Corporation Law, the Registrant's certificate of incorporation,
as currently in effect, includes provisions that eliminate the personal liability of its directors for monetary damages for breach of their
fiduciary duty as directors.  To the extent Section 102(b)(7) is interpreted, or the Delaware General Corporation Law is
amended, to allow similar protections for officers of a corporation, such provisions of the registrant's certificate of incorporation shall
also extend to those persons.
In addition, as permitted by Section 145 of the Delaware General Corporation Law, the amended and restated bylaws of
the Registrant, as currently in effect, provide that:
The Registrant shall indemnify its directors and officers for serving the Registrant in those capacities or for serving other business
enterprises at the Registrant's request, to the fullest extent permitted by Delaware law.  Delaware law provides that a corporation may
indemnify such person if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to
the best interests of the Registrant and, with respect to any criminal proceeding, had no reasonable cause to believe such person's
conduct was unlawful.
The Registrant may, in its discretion, indemnify employees and agents in those circumstances where indemnification is permitted
by applicable law.
The Registrant is required to advance expenses, as incurred, to its directors and officers in connection with defending a
proceeding, except that such director or officer shall undertake to repay such advances if it is ultimately determined that such person is
not entitled to indemnification.
The Registrant will not be obligated pursuant to the amended and restated bylaws to indemnify a person with respect to
proceedings initiated by that person, except with respect to proceedings authorized by the Registrant's board of directors or brought to
enforce a right to indemnification.
The rights conferred in the amended and restated bylaws are not exclusive, and the Registrant is authorized to enter into
indemnification agreements with its directors, officers, employees and agents and to obtain insurance to indemnify such persons.
The Registrant may not retroactively amend the bylaw provisions to reduce its indemnification obligations to directors, officers,
employees and agents.
In addition, the Registrant's practice is to enter into separate indemnification agreements with each of its directors and officers that
provide the maximum indemnity allowed to directors and officers by Section 145 of the Delaware General Corporation Law
and also provides for certain additional procedural protections.
These indemnification provisions and the indemnification agreements entered into between the Registrant and its officers and
directors may be sufficiently broad to permit indemnification of the Registrant's officers and directors for liabilities (including
reimbursement of expenses incurred) arising under the Securities Act.
The Registrant has purchased and intends to maintain insurance on behalf of each person who is or was a director or officer of the
Registrant against any loss arising from any claim asserted against him or her and incurred by him or her in any such capacity, subject
to certain exclusions.
Item 7.  Exemption from Registration Claimed.
Not applicable.
Item 8.  Exhibits.
See the Index to Exhibits following the signature page hereto.
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 of 1933;
(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 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 percent change in the maximum aggregate offering price set
forth in the "Calculation of Registration Fee" table 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 paragraphs (A)(1)(i) and (A)(1)(ii) 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 Securities Exchange Act of 1934 that are incorporated by reference in
this registration statement.
(2) That, for the purpose of determining any liability under the Securities Act of 1933, 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 of 1933,
each filing of the Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act
of 1934 (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) 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 of 1933 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 Securities and Exchange Commission such indemnification is against public policy as expressed in the 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 of 1933 and will be governed
by the final adjudication of such issue.
nbsp;
nbsp;
nbsp;
nbsp;
nbsp;
nbsp;
nbsp;
nbsp;
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, as amended, 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 San Francisco, State of California, on May 2,
2012
SERVICESOURCE INTERNATIONAL, INC.
By:
/s/ Michael A. Smerklo
Michael A. Smerklo
Chief Executive Officer
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and
appoints Michael A. Smerklo and David S. Oppenheimer, and each of them, as his true and lawful attorney in fact and agent with full
power of substitution, for him in any and all capacities, to sign any and all amendments to this Registration Statement on Form S-8
(including post effective amendments), and to file the same, with all exhibits thereto and other documents in connection therewith, with
the Securities and Exchange Commission, granting unto said attorney in fact, proxy and agent full power and authority to do and
perform each and every act and thing requisite and necessary to be done in connection therewith, as fully for all intents and purposes
as he might or could do in person, hereby ratifying and confirming all that said attorney in fact, proxy and agent, or his substitute, may
lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Act of 1933, this Registration Statement on Form S-8 has been signed by
the following persons in the capacities and on the dates indicated below:
Signature
Title
Date
/s/ Michael A. Smerklo
Michael A. Smerklo
Chairman of the Board and Chief Executive Officer
(Principal Executive Officer)
May 2, 2012
/s/ David S. Oppenheimer
David S. Oppenheimer
Chief Financial Officer
(Principal Financial and Accounting Officer)
May 2, 2012
/s/ Steven M. Cakebread
Steven M. Cakebread
Director
May 2, 2012
/s/ Marc F. McMorris
Marc F. McMorris
Director
May 2, 2012
/s/ Bruce W. Dunlevie
Bruce W. Dunlevie
Director
May 2, 2012
/s/ Anthony Zingale
Anthony Zingale
Director
May 2, 2012
/s/ James C. Madden, V
James C. Madden, V
Director
May 2, 2012
/s/ Barry D. Reynolds
Barry D. Reynolds
Director
May 2, 2012
/s/ Thomas F. Mendoza
Thomas F. Mendoza
Director
May 2, 2012
INDEX TO EXHIBITS
Incorporated by Reference Herein
Exhibit
Number
Description
Exhibit
Form/File No.
Filing Date
4.1
Specimen common stock certificate of the Registrant
4.3
Form S-1/A
(No. 333-71271)
March 11, 2011
5.1
Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation
23.1
Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm
23.2
Consent of Wilson Sonsini Goodrich & Rosati, Professional Corporation (contained in
Exhibit 5.1 hereto)
24.1
Power of Attorney (contained on signature page hereto)
99.1
2011 Equity Incentive Plan and forms of agreements thereunder
4.4
Form S-8
(No. 333-173116)
March 28, 2011
99.2
2011 Equity Incentive Plan form of Restricted Stock Award Agreement
10.1
Form 8-K
(No. 001-35108)
February 10, 2012
99.3
2011 Employee Stock Purchase Plan and form of agreement thereunder
4.5
Form S-8
(No. 333-173116)
March 28, 2011