Stream Global Services (SGS) 10-Q 2013 Q2 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. 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 Stream Global Services, Inc. (the “Company”) for the quarter ended June 30, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Kathryn V. Marinello, Chairman, Chief Executive Officer and President of the Company, hereby certifies, pursuant to Rule 13a-14(b) and 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to her knowledge:

(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.

Dated: August 5, 2013	/s/ Kathryn V. Marinello
	Kathryn V. Marinello
	Chairman, Chief Executive Officer and President
	(Principal Executive Officer)