<SEC-DOCUMENT>0001104659-20-059659.txt : 20200511
<SEC-HEADER>0001104659-20-059659.hdr.sgml : 20200511
<ACCEPTANCE-DATETIME>20200511172128
ACCESSION NUMBER:		0001104659-20-059659
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20200511
DATE AS OF CHANGE:		20200511
EFFECTIVENESS DATE:		20200511

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Information Services Group Inc.
		CENTRAL INDEX KEY:			0001371489
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT CONSULTING SERVICES [8742]
		IRS NUMBER:				205261587
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-238177
		FILM NUMBER:		20866091

	BUSINESS ADDRESS:	
		STREET 1:		2187 ATLANTIC STREET
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06902
		BUSINESS PHONE:		203-517-3100

	MAIL ADDRESS:	
		STREET 1:		2187 ATLANTIC STREET
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06902
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>tm2019214d1_s8.htm
<DESCRIPTION>FORM S-8
<TEXT>
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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 May 11, 2020. </B></P>

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



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

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

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

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

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

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

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

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

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

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



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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 14pt"><B>INFORMATION
SERVICES GROUP, INC.</B></FONT><B> </B></P>

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

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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&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: bottom; text-align: center; font-size: 10pt; width: 49%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Delaware</B></FONT></TD>
<TD STYLE="text-align: center; vertical-align: bottom; font-size: 10pt; width: 2%">&nbsp;</TD>
<TD STYLE="vertical-align: top; text-align: center; font-size: 10pt; width: 49%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>20-5261587</B></FONT></TD></TR>
<TR>
<TD STYLE="text-align: center; vertical-align: top"><B>(State or other jurisdiction of</B> <B><BR>
incorporation or organization)</B> &nbsp;</TD>
<TD STYLE="text-align: center; vertical-align: bottom; font-size: 10pt">&nbsp;</TD>
<TD STYLE="text-align: center; vertical-align: top"><B>(I.R.S. Employer<BR>
</B> <B>Identification No.)</B> &nbsp;</TD></TR>
<TR>
<TD STYLE="text-align: center; vertical-align: top">&nbsp;</TD>
<TD STYLE="text-align: center; vertical-align: bottom; font-size: 10pt">&nbsp;</TD>
<TD STYLE="text-align: center; vertical-align: top">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
<TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>2187 Atlantic Street<BR> Stamford, CT</B></FONT></TD>
<TD STYLE="text-align: center; font-size: 10pt">&nbsp;</TD>
<TD STYLE="text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>06902</B></FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: top; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>(Address of Principal Executive Offices)</B></FONT></TD>
<TD STYLE="text-align: center; vertical-align: bottom; font-size: 10pt">&nbsp;</TD>
<TD STYLE="vertical-align: top; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>(Zip Code)</B></FONT></TD></TR>
</TABLE>

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

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

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

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

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

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

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

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

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

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

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<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 &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer,&rdquo; &ldquo;smaller reporting company&rdquo; and &ldquo;emerging
growth company&rdquo; in Rule 12b-2 of the Exchange Act.</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="margin-left: 0.5in; width: 94%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 3pt; width: 21%; border: Black 1pt solid; padding-top: 4.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Large&nbsp;accelerated&nbsp;filer</FONT></TD>
    <TD STYLE="width: 6%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings; font-size: 10pt">&#168;</FONT></TD>
    <TD STYLE="width: 25%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt">&nbsp;</TD>
    <TD STYLE="padding-left: 3pt; width: 27%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Accelerated&nbsp;filer</FONT></TD>
    <TD STYLE="width: 21%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt">&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#120;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 3pt; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 4.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Non-accelerated filer</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings; font-size: 10pt">&#168;</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt">&nbsp;</TD>
    <TD STYLE="padding-left: 3pt; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Smaller&nbsp;reporting&nbsp;company</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt">&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#120;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-left: 3pt; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-top: 4.5pt">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt">&nbsp;</TD>
    <TD STYLE="padding-left: 3pt; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Emerging growth company</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-top: 4.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;&nbsp;<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 the Securities Act. <FONT STYLE="font-family: Wingdings">&#168;</FONT></P>

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
<TD STYLE="border-top: Black 2pt double; padding-bottom: 10pt; width: 44%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Title&nbsp;of&nbsp;Securities&nbsp;to&nbsp;be&nbsp;Registered</B></FONT></TD>
<TD STYLE="text-align: center; border-top: Black 2pt double; border-left: black 1pt solid; padding-bottom: 10pt; width: 1%">&nbsp;</TD>
<TD STYLE="border-top: Black 2pt double; white-space: nowrap; padding-bottom: 10pt; text-align: center; width: 13%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Amount to be<BR> Registered (1)</B></FONT></TD>
<TD STYLE="text-align: center; border-top: Black 2pt double; border-left: black 1pt solid; padding-bottom: 10pt; width: 1%">&nbsp;</TD>
<TD STYLE="text-align: center; border-top: Black 2pt double; white-space: nowrap; width: 13%"><B>Proposed</B> <B><BR>
Maximum<BR>
</B> <B>Offering Price<BR>
</B> <B>Share (2)</B> &nbsp;</TD>
<TD STYLE="text-align: center; border-top: Black 2pt double; border-left: black 1pt solid; padding-bottom: 10pt; width: 1%">&nbsp;</TD>
<TD STYLE="border-top: Black 2pt double; white-space: nowrap; padding-bottom: 10pt; text-align: center; width: 13%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Proposed Maximum<BR> Aggregate Offering<BR> Price </B></FONT></TD>
<TD STYLE="text-align: center; border-top: Black 2pt double; border-left: black 1pt solid; padding-bottom: 10pt; width: 1%">&nbsp;</TD>
<TD STYLE="border-top: Black 2pt double; white-space: nowrap; padding-bottom: 10pt; text-align: center; width: 13%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Amount of<BR> Registration Fee</B></FONT></TD></TR>
<TR>
<TD STYLE="border-bottom: Black 2pt double; vertical-align: top; border-top: Black 1pt solid; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Common Stock, $0.001 par value</FONT></TD>
<TD STYLE="border-bottom: Black 2pt double; text-align: center; vertical-align: bottom; border-top: Black 1pt solid; border-left: black 1pt solid; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="border-bottom: Black 2pt double; border-top: Black 1pt solid; white-space: nowrap; vertical-align: bottom; padding-bottom: 10pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">6,700,000</FONT></TD>
<TD STYLE="border-bottom: Black 2pt double; text-align: center; vertical-align: bottom; border-top: Black 1pt solid; border-left: black 1pt solid; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="border-bottom: Black 2pt double; border-top: Black 1pt solid; white-space: nowrap; vertical-align: bottom; padding-bottom: 10pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">$2.37</FONT></TD>
<TD STYLE="border-bottom: Black 2pt double; text-align: center; vertical-align: bottom; border-top: Black 1pt solid; border-left: black 1pt solid; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="border-bottom: Black 2pt double; border-top: Black 1pt solid; white-space: nowrap; vertical-align: bottom; padding-bottom: 10pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">$15,879,000</FONT></TD>
<TD STYLE="border-bottom: Black 2pt double; text-align: center; vertical-align: bottom; border-top: Black 1pt solid; border-left: black 1pt solid; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="border-bottom: Black 2pt double; border-top: Black 1pt solid; white-space: nowrap; vertical-align: bottom; padding-bottom: 10pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">$2,061.09</FONT></TD></TR>
</TABLE>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 4%; padding-bottom: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD STYLE="padding-bottom: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This registration statement registers (a) 5,500,000 additional securities issuable pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan (the &ldquo;Incentive Plan&rdquo;), the other securities issuable under which are registered under a previously filed registration statement on Form S-8 and (b) 1,200,000 additional securities issuable pursuant to the Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan (the &ldquo;ESPP&rdquo; and together with the Incentive Plan, the &ldquo;Plans&rdquo;), the other securities issuable under which are registered under a previously filed registration statement on Form S-8.&nbsp;&nbsp;Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &ldquo;Securities Act&rdquo;), the registration statement also covers an indeterminate number of additional shares of the registrant&rsquo;s common stock which may be issued under the adjustment provisions of the Plans. </FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD STYLE="padding-bottom: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based upon the average of the high and low prices per share of common stock of the registrant on May 7, 2020, as reported by the NASDAQ Global Market, solely for the purpose of calculating the registration fee.&nbsp;&nbsp;The registration fee is computed in accordance with Rule 457(h) and (c) under the Securities Act. </FONT></TD></TR>
</TABLE>

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

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<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>Introduction</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></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">This
Registration Statement on Form S-8 (the &ldquo;Registration Statement&rdquo;) registers additional securities of the same class
as other securities for which registration statements on Form S-8 relating to the Information Services Group, Inc. Amended and
Restated 2007 Equity and Incentive Award Plan and Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase
Plan are effective. In accordance with General Instruction E to Form S-8, Information Services Group, Inc. (the &ldquo;Company&rdquo;)
incorporates by reference the contents of the Company&rsquo;s registration statements on Form S-8, Registration File No.</FONT>
333-149950, filed with the Securities and Exchange Commission (the &ldquo;Commission&rdquo;) on <A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000110465908020725/a08-9458_1s8.htm" STYLE="-sec-extract: exhibit">March 28, 2008,</A> Registration File
No. 333-168848 filed with the Commission on <A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000110465910044426/a10-15850_1s8.htm" STYLE="-sec-extract: exhibit">August 13, 2010</A>, Registration File No. 333-196193 filed with the Commission on <A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000104746914005136/a2220297zs-8.htm" STYLE="-sec-extract: exhibit">May 22, 2014</A> and Registration File No. 333-218061 filed with the Commission on <A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000110465917033492/a17-13245_1s8.htm" STYLE="-sec-extract: exhibit">May 17, 2017.</A></P>

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 9%; padding-bottom: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item&nbsp;8.</FONT></TD>
    <TD STYLE="padding-bottom: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exhibits. </FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">For a list of exhibits, see the Exhibit Index in this
Registration Statement, which is incorporated into this Item by reference.</P>

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





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

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid; text-align: left; font: 10pt Times New Roman, Times, Serif; padding-bottom: 3pt; width: 8%; vertical-align: top">Exhibit</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; padding-bottom: 3pt; width: 92%"> Description</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 3pt; vertical-align: top"><A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000104746906015247/a2175257zex-4_2.htm" STYLE="-sec-extract: exhibit">4.1</A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 3pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000104746906015247/a2175257zex-4_2.htm" STYLE="-sec-extract: exhibit"> Specimen Common Stock Certificate (previously filed as Exhibit 4.2 to Amendment No. 3 to the Company&rsquo;s Registration Statement
on Form S-1 filed with the SEC on December 22, 2006 (Commission File Number: 333-136536), and incorporated herein by reference).</A></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 3pt; vertical-align: top"><A HREF="tm2019214d1_ex5-1.htm" STYLE="-sec-extract: exhibit">5.1</A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 3pt"><A HREF="tm2019214d1_ex5-1.htm" STYLE="-sec-extract: exhibit">Opinion of Katten Muchin Rosenman LLP with respect to the legality of securities</A></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 3pt; vertical-align: top"><A HREF="tm2019214d1_ex23-1.htm" STYLE="-sec-extract: exhibit">23.1</A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 3pt"><A HREF="tm2019214d1_ex23-1.htm" STYLE="-sec-extract: exhibit"> Consent of PricewaterhouseCoopers LLP </A></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 3pt; vertical-align: top"><A HREF="tm2019214d1_ex5-1.htm">23.2</A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 3pt"><A HREF="tm2019214d1_ex5-1.htm"> Consent of Katten Muchin Rosenman LLP (included in Exhibit 5.1)</A></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 3pt; vertical-align: top"><A HREF="#a_001" STYLE="-sec-extract: exhibit">24.1</A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 3pt"><A HREF="#a_001" STYLE="-sec-extract: exhibit"> Power of Attorney (included in the signature pages hereto)</A></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 3pt; vertical-align: top"><A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000104746920001653/a2241035zdef14a.htm" STYLE="-sec-extract: exhibit">99.1</A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 3pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000104746920001653/a2241035zdef14a.htm" STYLE="-sec-extract: exhibit"> Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan (previously filed as Appendix A to
the Company&rsquo;s Definitive Proxy Statement filed with the SEC on March 20, 2020) (Commission File Number 001-33287), and incorporated
herein by reference).</A></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 3pt; vertical-align: top"><A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000104746920001653/a2241035zdef14a.htm" STYLE="-sec-extract: exhibit">99.2</A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 3pt"><A HREF="http://www.sec.gov/Archives/edgar/data/1371489/000104746920001653/a2241035zdef14a.htm" STYLE="-sec-extract: exhibit">Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan (previously filed as Appendix B to the
Company&rsquo;s Definitive Proxy Statement filed with the SEC on March 20, 2020) (Commission File Number 001-33287), and incorporated
herein by reference).</A></TD></TR>
</TABLE>


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

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

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

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

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

<P STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to the requirements of the Securities Act of 1933,
the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8
and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the
City of Stamford, State of Connecticut, on this 11th day of May, 2020.</P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></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><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>INFORMATION
    SERVICES GROUP, INC.</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR>
    <TD><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR>
    <TD STYLE="width: 50%"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top; font-size: 10pt; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: black 1pt solid; vertical-align: top; font-size: 10pt; width: 45%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
David E. Berger</FONT></TD></TR>
<TR>
    <TD><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">David
    E. Berger </FONT></TD></TR>
<TR>
    <TD><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Executive
    Vice President and <BR>
    Chief Financial Officer (principal financial officer)</FONT></TD></TR>
</TABLE>

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




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<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><U><A NAME="a_001"></A>POWER OF ATTORNEY</U></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: left">Each person whose signature appears below
hereby constitutes and appoints Michael P. Connors and David E. Berger, and each of them severally, acting alone and without the
other, his or her true and lawful attorneys-in-fact and agents, with full power of substitution, to sign on his or her behalf,
individually and in each capacity stated below, all amendments and post-effective amendments to this Registration Statement on
Form S-8 and to file the same, with all exhibits thereto and any other documents in connection therewith, with the Securities and
Exchange Commission under the Securities Act of 1933, granting unto said attorneys-in-fact and agents full power and authority
to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully and to all
intents and purposes as each might or could do in person, hereby ratifying and confirming each act that said attorneys-in-fact
and agents may lawfully do or cause to be done by virtue thereof.</P>

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
<TD STYLE="padding-bottom: 10pt; width: 35%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Signature</B></FONT></TD>
<TD STYLE="padding-bottom: 10pt; width: 10%">&nbsp;</TD>
<TD STYLE="padding-bottom: 10pt; text-align: center; width: 32%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Titles</B></FONT></TD>
<TD STYLE="padding-bottom: 10pt; width: 5%">&nbsp;</TD>
<TD STYLE="padding-bottom: 10pt; text-align: center; width: 18%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>Date</B></FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/Michael P. Connors</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Chairman and Chief Executive Officer (principal executive officer)</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="white-space: nowrap; padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May 11, 2020</FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Michael P. Connors</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD></TR>
<TR>
<TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/David E. Berger</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Executive Vice President and Chief Financial Officer (principal financial and accounting officer)</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="white-space: nowrap; padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May 11, 2020</FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">David E. Berger </FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD></TR>
<TR>
<TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/Neil G. Budnick</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="white-space: nowrap; padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May 11, 2020</FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Neil G. Budnick</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD></TR>
<TR>
<TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/Gerald S. Hobbs</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="white-space: nowrap; padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May 11, 2020</FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Gerald S. Hobbs</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD></TR>
<TR>
<TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/ Bruce N. Pfau</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="white-space: nowrap; padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May 11, 2020</FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Bruce N. Pfau</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD></TR>
<TR>
<TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/ Christine Putur</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="white-space: nowrap; padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May 11, 2020</FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Christine Putur</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD></TR>
<TR>
<TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/ Kalpana Raina</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="white-space: nowrap; padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May 11, 2020</FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Kalpana Raina</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD></TR>
<TR>
<TD STYLE="vertical-align: bottom; border-bottom: Black 1pt solid; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">/s/ Donald C. Waite</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Director</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD ROWSPAN="2" STYLE="white-space: nowrap; padding-bottom: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">May 11, 2020</FONT></TD></TR>
<TR>
<TD STYLE="vertical-align: top; padding-left: 12pt; text-indent: -12pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Donald C. Waite</FONT></TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD>
<TD STYLE="vertical-align: bottom; padding-bottom: 10pt">&nbsp;</TD></TR>
</TABLE>


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

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<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>tm2019214d1_ex5-1.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B>Exhibit 5.1 </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>Opinion of Katten Muchin Rosenman LLP,
the legal counsel to the Company</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">May 11, 2020</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">Information Services Group, Inc.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">2187
Atlantic Street</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">Stamford, CT</FONT> 06902</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">Ladies and Gentlemen:</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">We have acted as counsel to Information Services Group, Inc.,
a Delaware corporation (the &ldquo;Company&rdquo;), in connection with the filing of a Registration Statement on Form S-8 (the
 &ldquo;Registration Statement&rdquo;) for the registration under the Securities Act of 1933, as amended (the &ldquo;Act&rdquo;),
of the issuance and sale by the Company of (i) up to an additional 5,500,000 shares (the &ldquo;Incentive Plan Shares&rdquo;) of
the Company&rsquo;s common stock, $0.001 par value per share (the &ldquo;Common Stock&rdquo;), pursuant to the Information Services
Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan (the &ldquo;Incentive Plan&rdquo;), and (ii) up to an additional
1,200,000 shares (the &ldquo;ESPP Shares&rdquo; and together with the Incentive Plan Shares, the &ldquo;Shares&rdquo;) of the Company&rsquo;s
Common Stock pursuant to the Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan (the &ldquo;ESPP&rdquo;
and together with the Incentive Plan, the &ldquo;Plans&rdquo;). This opinion is being furnished in accordance with the requirements
of Item&nbsp;601(b)(5) of Regulation S-K under the Act.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">In connection with this opinion, we have relied as to matters
of fact, without investigation, upon certificates of public officials and others and upon affidavits, certificates and written
statements of officers of the Company. We have also examined and relied upon originals or copies, certified or otherwise identified
to our satisfaction, of the following:</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>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 4%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">1.</FONT></TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">The Amended and Restated Certificate of Incorporation of the Company; </FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 4%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">2.</FONT></TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">The Amended and Restated Bylaws of the Company (including all amendments thereto); </FONT></TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<TR>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 4%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">3.</FONT></TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Records of proceedings and actions of the Board of Directors, committees thereof and stockholders of the Company relating to the Plans; </FONT></TD></TR>
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<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>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 4%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">4.</FONT></TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">The Plans; and </FONT></TD></TR>
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<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>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 4%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">5.</FONT></TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Such other instruments, documents, statements and records of the Company and others as we have deemed relevant and necessary to examine and rely upon for the purpose of this opinion. </FONT></TD></TR>
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<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">In connection with this opinion, we have assumed the legal capacity
of all natural persons, the accuracy and completeness of all documents and records that we have reviewed, the genuineness of all
signatures, the due authority of the parties signing such documents, the authenticity of the documents submitted to us as originals
and the conformity to authentic original documents of all documents submitted to us as certified, conformed or reproduced copies.
We have also assumed that, at the time of issuance of the Shares, (i)&nbsp;any and all agreements related to the issuance of the
Shares under either Plan will conform to the terms and conditions of such Plan, as applicable, and will have been duly executed
and delivered by the Company and, as applicable, the recipients of the Shares, (ii)&nbsp;the Committee (as defined in the applicable
Plan) will have approved the issuance of awards of the Shares pursuant to the applicable Plan, and (iii)&nbsp;any cash consideration
payable to the Company in connection with any issuance of the Shares will not be less than the par value per share of the Common
Stock.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Based upon and subject to the foregoing, it is our opinion that
the Shares have been duly authorized by all necessary corporate action of the Company, and when (i) the Shares are issued and delivered
by the Company and (to the extent applicable) paid for in accordance with the terms of the applicable Plan and the relevant award
agreements, and (ii) certificates representing the Shares in the form of the specimen certificates examined by us have been manually
signed by an authorized officer of the transfer agent and registrar for the Common Stock or registered and issued electronically
by such transfer agent and registrar for the Common Stock, the Shares will be validly issued, fully paid and nonassessable.</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">Our opinion expressed above is limited to the General Corporation
Law of the State of Delaware, and we do not express any opinion concerning any other laws. This opinion is given as of the date
hereof and we assume no obligation to advise you of changes that may hereafter be brought to our attention.</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">We hereby consent to the filing of this opinion with the Securities
and Exchange Commission as an exhibit to the Registration Statement. In giving this consent, we do not thereby admit that we are
included in the category of persons whose consent is required under Section&nbsp;7 of the Act or the rules and regulations of the
Securities and Exchange Commission.</P>

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

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    <TD STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; text-align: left">Very truly yours,</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">/s/ Katten Muchin Rosenman LLP</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">KATTEN MUCHIN ROSENMAN LLP</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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<FILENAME>tm2019214d1_ex23-1.htm
<DESCRIPTION>EXHIBIT 23.1
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<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"><B>CONSENT OF INDEPENDENT REGISTERED PUBLIC
ACCOUNTING FIRM</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"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">We hereby consent to the incorporation by reference in
this Registration Statement on Form&nbsp;S-8 of Information Services Group, Inc. of our report dated March 11, 2020 relating
to the financial statements, financial statement schedules and the effectiveness of internal control over financial
reporting, which appears in Information Services Group, Inc.&rsquo;s Annual Report on Form 10-K for the year ended
December&nbsp;31, 2019.</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">&nbsp;</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">/s/ PricewaterhouseCoopers LLP<BR>
Stamford, Connecticut<BR>
May 11, 2020</P>

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

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

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


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