<SEC-DOCUMENT>0000944480-18-000025-index.html : 20180430
<SEC-HEADER>0000944480-18-000025.hdr.sgml : 20180430
<ACCEPTANCE-DATETIME>20180430161611
ACCESSION NUMBER:		0000944480-18-000025
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20180430
DATE AS OF CHANGE:		20180430
EFFECTIVENESS DATE:		20180430

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GSE SYSTEMS INC
		CENTRAL INDEX KEY:			0000944480
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				521868008
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14785
		FILM NUMBER:		18789958

	BUSINESS ADDRESS:	
		STREET 1:		1332 LONDONTOWN BLVD
		CITY:			SYKESVILLE
		STATE:			MD
		ZIP:			21784
		BUSINESS PHONE:		4109707874

	MAIL ADDRESS:	
		STREET 1:		1332 LONDONTOWN BLVD
		CITY:			SYKESVILLE
		STATE:			MD
		ZIP:			21784
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>defa14a_proxynotice043018.htm
<DESCRIPTION>GSE SYSTEMS 2018 PROXY NOTICE
<TEXT>
Document 1 - file: defa14a_proxynotice043018.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>noticecard_p1.jpg
<TEXT>
Document 2 - file: noticecard_p1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>noticecard_p2.jpg
<TEXT>
Document 3 - file: noticecard_p2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>noticecard_p3.jpg
<TEXT>
Document 4 - file: noticecard_p3.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>noticecard_p4.jpg
<TEXT>
Document 5 - file: noticecard_p4.jpg

</DOCUMENT>
</SEC-DOCUMENT>