Gse Systems (GVP) 10-K 2009 FY Annual 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 Annual Report on Form 10-K of GSE Systems, Inc. (the “Company”) for the year ended December 31, 2009 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John V. Moran, Chief Executive Officer of the Company, and I, Jeffery G. Hough, Senior Vice President and Chief Financial Officer, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 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.   To my knowledge, the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:  March 11, 2010	/s/ John V. Moran	/s/ Jeffery G. Hough
	John V. Moran	Jeffery G. Hough
	Chief Executive Officer	Senior Vice President and Chief
		Financial Officer