Information Services (III) 10-Q 2008 Q1 Quarterly report

Exhibit 32.2

CERTIFICATION PURSUANT TO
18 USC. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES–OXLEY ACT OF 2002

In connection with the quarterly report on Form 10–Q of Information Services Group, Inc. (the “Company”) for the period ended March 31, 2008 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Frank Martell, Executive Vice President, Chief Financial Officer and Treasurer of the Company, hereby certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes–Oxley Act of 2002, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

May 14, 2008	/s/ FRANK MARTELL
	Frank Martell
	Executive Vice President, Chief Financial
	Officer and Treasurer (Principal Financial
	Officer and Principal Accounting Officer)