<SEC-DOCUMENT>0001104659-23-087267.txt : 20230803
<SEC-HEADER>0001104659-23-087267.hdr.sgml : 20230803
<ACCEPTANCE-DATETIME>20230803161206
ACCESSION NUMBER:		0001104659-23-087267
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20230803
DATE AS OF CHANGE:		20230803
EFFECTIVENESS DATE:		20230803

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CRA INTERNATIONAL, INC.
		CENTRAL INDEX KEY:			0001053706
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-LEGAL SERVICES [8111]
		IRS NUMBER:				042372210
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1230

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-273643
		FILM NUMBER:		231140104

	BUSINESS ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		STREET 2:		T-9
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6174253000

	MAIL ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		STREET 2:		T-9
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHARLES RIVER ASSOCIATES INC
		DATE OF NAME CHANGE:	19980126
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>tm2322607d1_s8.htm
<DESCRIPTION>FORM S-8
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>As filed with the Securities and Exchange Commission
on August 3, 2023</B></P>

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

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

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

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

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

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

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



<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM S-8</B></P>

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

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

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

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

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

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

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



<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CRA International, Inc.</B></P>

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

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

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  <TR>
    <TD STYLE="vertical-align: top; width: 50%; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Massachusetts</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 1%; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 49%; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>04-2372210</B></FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(State or other jurisdiction of incorporation or organization)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(I.R.S. Employer Identification No.)</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>200 Clarendon Street, Boston, Massachusetts</B></FONT></TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>02116</B></FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(Address of Principal Executive Offices)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(Zip Code)</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CRA International, Inc. Amended and Restated
2006 Equity Incentive Plan<BR>
</B>(Full title of the plan)</P>




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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>200 Clarendon Street, T-9</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Boston, Massachusetts 02116</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(617) 425-3000</B></P>

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



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

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

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="vertical-align: top; width: 30%; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Alex Aber, Esq.</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 40%; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Richard Aftanas, Esq.</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 30%; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Jonathan D. Yellin, Esq.</B></FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Hogan Lovells US LLP</FONT></TD>
    <TD STYLE="vertical-align: top; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Hogan Lovells US LLP</FONT></TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">CRA International, Inc.</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">125 High Street</FONT></TD>
    <TD STYLE="vertical-align: top; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">390 Madison Avenue</FONT></TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">200 Clarendon Street, T-9</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Boston, Massachusetts 02110</FONT></TD>
    <TD STYLE="vertical-align: top; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">New York, New York</FONT></TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Boston, Massachusetts 02116</FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(617) 371-1000</FONT></TD>
    <TD STYLE="vertical-align: top; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(212) 918-3000</FONT></TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(617) 425-3000</FONT></TD></TR>
  </TABLE>



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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions
of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer,&#8221; &#8220;smaller reporting company&#8221; and &#8220;emerging
growth company&#8221; in Rule 12b-2 of the Exchange Act.</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 19%; padding: 0.25pt"><FONT STYLE="font-size: 10pt">Large accelerated filer</FONT></TD>
    <TD STYLE="width: 51%; padding: 0.25pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="width: 25%; padding: 0.25pt"><FONT STYLE="font-size: 10pt">Accelerated filer</FONT></TD>
    <TD STYLE="width: 5%; padding: 0.25pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#120;</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding: 0.25pt"><FONT STYLE="font-size: 10pt">Non-accelerated filer</FONT></TD>
    <TD STYLE="padding: 0.25pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD>
    <TD STYLE="padding: 0.25pt"><FONT STYLE="font-size: 10pt">Smaller reporting company</FONT></TD>
    <TD STYLE="padding: 0.25pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt"><FONT STYLE="font-size: 10pt">Emerging growth company</FONT></TD>
    <TD STYLE="padding: 0.25pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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

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




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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">This registration statement
relates to the registration of an additional 500,000 shares of common stock issuable pursuant to our Amended and Restated 2006 Equity
Incentive Plan, as amended, which we refer to as the 2006 Plan. Pursuant to General Instruction E to Form S-8, we incorporate by reference
into this registration statement the contents of our registration statement on <A HREF="http://www.sec.gov/Archives/edgar/data/1053706/000110465906026447/a06-10157_1s8.htm" STYLE="-sec-extract: exhibit">Form S-8 (File No. 333-133450) filed with the Securities and Exchange Commission, or the SEC, on April 21, 2006</A>, relating to the registration of 1,500,000 shares of our common stock issuable
under the 2006 Plan, our registration statement on <A HREF="http://www.sec.gov/Archives/edgar/data/1053706/000110465910004179/a10-2717_1s8.htm" STYLE="-sec-extract: exhibit">Form S-8 (File No. 333-164621) filed with the SEC on February 1, 2010</A>, relating to
the registration of 210,000 shares of our common stock issuable under the 2006 Plan, our registration statement on <A HREF="http://www.sec.gov/Archives/edgar/data/1053706/000110465910053762/a10-19797_1s8.htm" STYLE="-sec-extract: exhibit">Form S-8 (File No. 333-170142) filed with the SEC on October 26, 2010</A>, relating to the registration of 1,464,000 shares of our common stock issuable under
the 2006 Plan, our registration statement on <A HREF="http://www.sec.gov/Archives/edgar/data/1053706/000110465912077407/a12-26270_1s8.htm" STYLE="-sec-extract: exhibit">Form S-8 (File No. 333-184916) filed with the SEC on November 13, 2012</A>, relating to the registration
of 1,700,000 shares of our common stock issuable under the 2006 Plan, our registration statement on <A HREF="http://www.sec.gov/Archives/edgar/data/1053706/000110465917065183/a17-24954_1s8.htm" STYLE="-sec-extract: exhibit">Form S-8 (File No. 333-221263) filed with the SEC on November 1, 2017</A>, relating to the registration of 400,000 shares of our common stock issuable under the 2006 Plan and
our registration statement on <A HREF="http://www.sec.gov/Archives/edgar/data/1053706/000110465918072828/a18-41502_1s8.htm" STYLE="-sec-extract: exhibit">Form S-8 (File No. 333-228783) filed with the SEC on December 13, 2018</A>, relating to the registration of
375,000 shares of our common stock issuable under the 2006 Plan.</P>

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

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

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

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

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 3. Incorporation of Documents by Reference.</B></P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The following documents, which are on file with
the SEC, are incorporated by reference in this registration statement:</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="text-align: justify; width: 0.5in"></TD><TD STYLE="text-align: justify; width: 0.25in">(a)</TD><TD STYLE="text-align: justify"><A HREF="http://www.sec.gov/ix?doc=/Archives/edgar/data/1053706/000105370623000007/crai-20221231.htm" STYLE="-sec-extract: exhibit">Our annual report on Form 10-K for the fiscal year ended December 31, 2022 filed with the SEC on March 2, 2023;</A></TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="text-align: justify; width: 0.5in"></TD><TD STYLE="text-align: justify; width: 0.25in">(b)</TD><TD STYLE="text-align: justify"><A HREF="http://www.sec.gov/ix?doc=/Archives/edgar/data/1053706/000105370623000014/crai-20230401.htm" STYLE="-sec-extract: exhibit">Our quarterly report on Form 10-Q for the fiscal quarter ended April 1, 2023 filed with the SEC on May 4, 2023;</A></TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="text-align: justify; width: 0.5in"></TD><TD STYLE="text-align: justify; width: 0.25in">(c)</TD><TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1053706/000105370623000020/crai-20230701.htm">Our quarterly report on Form 10-Q for the fiscal quarter ended July 1, 2023 filed with the SEC on August 3, 2023</A>;</TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="text-align: justify; width: 0.5in"></TD><TD STYLE="text-align: justify; width: 0.25in">(d)</TD><TD STYLE="text-align: justify"><A HREF="http://www.sec.gov/ix?doc=/Archives/edgar/data/0001053706/000105370623000006/crai-20230302.htm" STYLE="-sec-extract: exhibit">Our current report on Form 8-K filed with the SEC on March 2, 2023</A> (excluding any information furnished pursuant to Item 2.02 or Item
7.01 contained therein);</TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="text-align: justify; width: 0.5in"></TD><TD STYLE="text-align: justify; width: 0.25in">(e)</TD><TD STYLE="text-align: justify"><A HREF="http://www.sec.gov/ix?doc=/Archives/edgar/data/0001053706/000110465923045009/tm2312465d1_8k.htm" STYLE="-sec-extract: exhibit">Our current report on Form 8-K filed with the SEC on April 13, 2023;</A></TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="text-align: justify; width: 0.5in"></TD><TD STYLE="text-align: justify; width: 0.25in">(f)</TD><TD STYLE="text-align: justify"><A HREF="http://www.sec.gov/ix?doc=/Archives/edgar/data/0001053706/000110465923081630/tm2321257d1_8k.htm" STYLE="-sec-extract: exhibit">Our current report on Form 8-K filed with the SEC on July 17, 2023; and</A></TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="text-align: justify; width: 0.5in"></TD><TD STYLE="text-align: justify; width: 0.25in">(g)</TD><TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/1053706/0000950135-98-002505.txt" STYLE="-sec-extract: exhibit">The description of our common stock contained in our registration statement on Form 8-A filed with the SEC on April 17, 1998.</A></TD></TR></TABLE>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In addition, all documents subsequently filed by
us pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended, prior to the filing of a post-effective
amendment which indicates that all securities offered have been sold or which deregisters all securities then remaining unsold, are deemed
to be incorporated by reference into, and to be a part of, this registration statement.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 8. Exhibits.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The exhibits to this registration statement are
listed in the Exhibit Index attached hereto and incorporated herein by reference.</P>

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 10%; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt; font-size: 10pt"><FONT STYLE="font-size: 10pt"><B>Exhibit<BR>
Number</B></FONT></TD>
    <TD STYLE="width: 2%; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="width: 88%; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Description</B></FONT></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: right"><A HREF="https://www.sec.gov/Archives/edgar/data/1053706/000110465923081630/tm2321257d1_ex10-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">4.1</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="text-align: justify; vertical-align: top; padding: 0.25pt; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1053706/000110465923081630/tm2321257d1_ex10-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">Amended and Restated 2006 Equity Incentive Plan, as amended (incorporated by reference to Exhibit 10.1 to our current report on Form 8-K filed with the SEC on July 17, 2023).</FONT></A></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: right"><A HREF="tm2322607d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">5.1</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt"><A HREF="tm2322607d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">Opinion of Hogan Lovells US LLP.</FONT></A></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: right"><A HREF="tm2322607d1_ex23-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">23.1</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt"><A HREF="tm2322607d1_ex23-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">Consent of Grant Thornton LLP.</FONT></A></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: right"><A HREF="tm2322607d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">23.2</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt"><A HREF="tm2322607d1_ex5-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">Consent of Hogan Lovells US LLP (included in Exhibit 5.1).</FONT></A></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: right"><A HREF="#sig"><FONT STYLE="font-size: 10pt">24.1</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt"><A HREF="#sig"><FONT STYLE="font-size: 10pt">Power of attorney (included on signature page of this registration statement).</FONT></A></TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt; text-align: right"><A HREF="tm2322607d1_ex-filingfees.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">107</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt"><A HREF="tm2322607d1_ex-filingfees.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-size: 10pt">Filing Fee Table </FONT></A></TD></TR>
  </TABLE>

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to the requirements
of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements
for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized,
in the city of Boston, the Commonwealth of Massachusetts, on this 3rd day of August, 2023.</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify; font-size: 10pt"><FONT STYLE="font-size: 10pt"><B>CRA INTERNATIONAL, INC.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify; width: 50%">&nbsp;</TD>
    <TD STYLE="text-align: justify; width: 4%; font-size: 10pt"><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD STYLE="text-align: justify; border-bottom: black 1pt solid; width: 46%; font-size: 10pt"><FONT STYLE="font-size: 10pt">/s/ Paul A. Maleh</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify; font-size: 10pt"><FONT STYLE="font-size: 10pt">Paul A. Maleh</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify; font-size: 10pt"><FONT STYLE="font-size: 10pt">President, Chief Executive Officer and Director</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">KNOW ALL BY THESE PRESENTS
that each individual whose signature appears below hereby constitutes and appoints Paul Maleh and Daniel Mahoney, and each of them, his
or her true and lawful attorneys-in-fact and agents with full power of substitution, for him or her and in his or her name, place and
stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this registration statement,
and to file the same, with all exhibits thereto, and all documents in connection therewith, with the SEC, granting unto said attorney-in-facts
and agents, and each of them, full power and authority to do and perform each and every act and thing that they, or either of them, may
deem necessary or advisable to be done in connection with this registration statement, as fully to all intents and purposes as such person
might or could do in person, hereby ratifying and confirming all that said attorney-in-facts and agents, or either of them, or any substitute
or substitutes of any of them, may lawfully do or cause to be done by virtue hereof.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to the requirements
of the Securities Act of 1933, this registration statement has been signed by the following persons in the indicated capacities as of
August 3rd, 2023.</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="vertical-align: bottom; width: 48%; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt; font-size: 10pt; text-align: left"><FONT STYLE="font-size: 10pt"><B>Signature</B></FONT></TD>
    <TD STYLE="width: 2%; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="width: 50%; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Title</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt">/s/ Paul A. Maleh</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">President, Chief Executive Officer and <BR> Chairman of the Board</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">Paul A. Maleh</FONT></TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><I>(Principal Executive Officer)</I></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="text-align: justify; padding: 0.25pt; font-size: 10pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt">/s/ Daniel K. Mahoney</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Chief Financial Officer, <BR> Executive Vice President and Treasurer</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding: 0.25pt; text-align: left; font-size: 10pt; vertical-align: top"><FONT STYLE="font-size: 10pt">Daniel K. Mahoney</FONT></TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><I>(Principal Financial Officer and <BR> Principal Accounting Officer)</I></FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt">/s/ Thomas A. Avery</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Director</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; padding: 0.25pt; font-size: 10pt"><FONT STYLE="font-size: 10pt">Thomas A. Avery</FONT></TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt; font-size: 10pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt; font-size: 10pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">/s/ Richard D. Booth </FONT></TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">Richard D. Booth </FONT></TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt">/s/ William F. Concannon</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">William F. Concannon</FONT></TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; border-bottom: Black 1pt solid; padding: 0.25pt; vertical-align: bottom">/s/ Christine R. Detrick</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">Christine R. Detrick</FONT></TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt; font-size: 10pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">/s/ Robert W. Holthausen</FONT></TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">Robert W. Holthausen</FONT></TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; border-bottom: black 1pt solid; padding: 0.25pt 0.25pt 0.5pt; font-size: 10pt"><FONT STYLE="font-size: 10pt">/s/ Alva H. Taylor </FONT></TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Director</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; padding: 0.25pt; font-size: 10pt"><FONT STYLE="font-size: 10pt">Alva H. Taylor </FONT></TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left; vertical-align: bottom; border-bottom: Black 1pt solid; padding: 0.25pt; font-size: 10pt"><FONT STYLE="font-size: 10pt">/s/ Heather E. Tookes</FONT></TD>
    <TD STYLE="vertical-align: top; padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding: 0.25pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; padding: 0.25pt; font-size: 10pt; vertical-align: bottom"><FONT STYLE="font-size: 10pt">Heather E. Tookes</FONT></TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="padding: 0.25pt; font-size: 10pt">&nbsp;</TD></TR>
  </TABLE>

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<TYPE>EX-5.1
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<DESCRIPTION>EXHIBIT 5.1
<TEXT>
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                           <P STYLE="margin: 0pt">&nbsp;</P>

<P STYLE="text-align: right; margin: 0pt"><B>Exhibit 5.1</B></P>

<P STYLE="margin: 0pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 65%; text-align: justify; font-size: 10pt"><IMG SRC="tm2322607d1_ex5-1img001.jpg" ALT=""></TD>
    <TD STYLE="width: 35%">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Hogan Lovells US LLP</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">125 High Street</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Suite 2010</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Boston, MA 02110</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">T +1 617 371 1000</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">F +1 617 371 1037</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">www.hoganlovells.com</P></TD></TR>
  </TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">August 3, 2023&#9;</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">200 Clarendon Street, T-9</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Boston, Massachusetts 02116</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">To the addressee referred to above:</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">We are acting as counsel to CRA International,
Inc., a Massachusetts corporation (the &ldquo;<B>Company</B>&rdquo;), in connection with its registration statement on Form&nbsp;S-8 (the
 &ldquo;<B>Registration Statement</B>&rdquo;), filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended
(the &ldquo;<B>Act</B>&rdquo;), relating to the proposed offering of up to 500,000 shares of common stock, no par value per share (the
 &ldquo;<B>Common Stock</B>&rdquo;) of the Company (the &ldquo;<B>Shares</B>&rdquo;), all of which Shares are issuable pursuant to the
CRA International, Inc. Amended and Restated 2006 Equity Incentive Plan, as amended (the &ldquo;<B>Plan</B>&rdquo;). This opinion letter
is furnished to you at your request to enable you to fulfill the requirements of Item&nbsp;601(b)(5) of Regulation S-K, 17&nbsp;C.F.R.
 &sect;&nbsp;229.601(b)(5), in connection with the Registration Statement.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">For purposes of this opinion letter, we have examined
copies of such agreements, instruments and documents as we have deemed an appropriate basis on which to render the opinion hereinafter
expressed. In our examination of the aforesaid documents, we have assumed the genuineness of all signatures, the legal capacity of all
natural persons, the accuracy and completeness of all documents submitted to us, the authenticity of all original documents, and the conformity
to authentic original documents of all documents submitted to us as copies (including pdfs). As to all matters of fact, we have relied
on the representations and statements of fact made in the documents so reviewed, and we have not independently established the facts so
relied on. This opinion letter is given, and all statements herein are made, in the context of the foregoing.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This opinion letter is based as to matters of
law solely on the Massachusetts Business Corporation Act, as amended. We express no opinion herein as to any other statutes, rules or
regulations.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Based upon, subject to and limited by the foregoing,
we are of the opinion that following (i) issuance of the Shares pursuant to the terms of the Plan, and (ii)&nbsp;receipt by the Company
of the consideration for the Shares specified in the applicable resolutions of the Board of Directors or a duly authorized committee thereof
and in the Plan, the Shares will be validly issued, fully paid, and nonassessable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Hogan Lovells US LLP is a limited liability partnership
registered in the District of Columbia. &ldquo;Hogan Lovells&rdquo; is an international legal practice that includes Hogan Lovells US
LLP and Hogan Lovells International LLP, with offices in: Alicante Amsterdam Baltimore Beijing Birmingham Boston Brussels Colorado Springs
Denver Dubai Dusseldorf Frankfurt Hamburg Hanoi Ho Chi Minh City Hong Kong Houston Johannesburg London Los Angeles Luxembourg Madrid
Mexico City Miami Milan Minneapolis Monterrey Munich New York Northern Virginia Paris Philadelphia Rome San Francisco S&atilde;o Paulo
Shanghai Silicon Valley Singapore Sydney Tokyo Warsaw Washington, D.C. Associated Offices: Budapest Jakarta Riyadh Shanghai FTZ Ulaanbaatar.
Business Service Centers: Johannesburg Louisville. Legal Services Center: Berlin. For more information see <U>www.hoganlovells.com</U></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This opinion letter has been prepared for use
in connection with the Registration Statement. We assume no obligation to advise of any changes in the foregoing subsequent to the effective
date of the Registration Statement.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">We hereby consent to the filing of this opinion
letter as Exhibit 5.1 to the Registration Statement. In giving this consent, we do not thereby admit that we are an &ldquo;expert&rdquo;
within the meaning of the Act.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">/s/ Hogan Lovells US LLP</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">HOGAN LOVELLS US LLP</P>

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

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

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

<P STYLE="margin: 0pt">&nbsp;</P>

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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>tm2322607d1_ex23-1.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
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<HEAD>
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<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

                           <P STYLE="margin: 0pt"></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B>Exhibit 23.1</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING
FIRM</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">We have issued our reports dated March 2, 2023
with respect to the consolidated financial statements and internal control over financial reporting of CRA International, Inc. included
in the Annual Report on Form 10-K for the year ended December 31, 2022, which are incorporated by reference in this Registration Statement.
We consent to the incorporation by reference of the aforementioned reports in this Registration Statement.</P>

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">August 3, 2023</P>



<P STYLE="margin: 0pt">&nbsp;</P>

<P STYLE="margin: 0pt"></P>

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<DOCUMENT>
<TYPE>EX-FILING FEES
<SEQUENCE>4
<FILENAME>tm2322607d1_ex-filingfees.htm
<DESCRIPTION>EX-FILING FEES
<TEXT>
<HTML>
<HEAD>
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<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B>Exhibit&nbsp;107</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CALCULATION OF FILING FEE TABLE</B></P>

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

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact Name of Registrant as Specified in its Charter)</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><U>Table 1: Newly Registered Securities</U></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="border: Black 1pt solid; width: 16%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Security Type</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; width: 12%; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Security Class<BR>
 &nbsp;Title</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; width: 12%; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Fee Calculation<BR>
 Rule</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; width: 12%; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amount<BR>
 Registered (1)</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; width: 12%; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Proposed<BR>
 Maximum<BR>
 Offering Price<BR>
 Per Unit (3)&nbsp;</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; width: 12%; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Maximum<BR>
 Aggregate<BR>
 Offering Price</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; width: 12%; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Fee Rate</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; width: 12%; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amount of<BR>
 Registration Fee</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Equity</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Common Stock</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">457(c)&nbsp;and 457(h)</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">500,000 (2)</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$100.505</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$50,252,500.00</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0.00011020</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$5,537.83</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="4" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Total Offering Amounts</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$50,252,500.00</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$5,537.83</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="4" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Total Fee Offsets</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&mdash;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="4" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Net Fee Due</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$5,537.83</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in">(1)</TD><TD STYLE="text-align: justify">Pursuant to Rule&nbsp;416 under the Securities Act of 1933, as amended (the &ldquo;Securities Act&rdquo;),
this Registration Statement on Form&nbsp;S-8 also covers an additional indeterminate amount of shares of common stock (the &ldquo;Common
Stock&rdquo;) to be offered or sold pursuant to the CRA International,&nbsp;Inc. Amended and Restated 2006 Equity Incentive Plan, as amended
(the &ldquo;A&amp;R Plan&rdquo;) which may become issuable to prevent dilution resulting from adjustments as a result of stock dividends,
stock splits, reverse stock splits and other anti-dilution provisions.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in">(2)</TD><TD STYLE="text-align: justify">Represents the number of additional shares of common stock authorized to be issued under the A&amp;R Plan.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in">(3)</TD><TD STYLE="text-align: justify">Pursuant to Rule&nbsp;457(c)&nbsp;and Rule&nbsp;457(h)&nbsp;under the Securities Act, the proposed maximum
offering price per share is estimated solely for the purpose of calculating the registration fee and is based upon the average of the
high and low prices of the Registrant&rsquo;s Common Stock as reported on the Nasdaq Global Select Market on July&nbsp;31, 2023, which
date is within five business days prior to filing this Registration Statement.</TD></TR></TABLE>

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

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

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

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</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>tm2322607d1_ex5-1img001.jpg
<DESCRIPTION>GRAPHIC
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
