-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Eo/m9gSPwGIHQfjeL4A+1GX58BwQQnwuALkB+2ugBcfXYa4o8ynjv17TWv/9p+li
 yi2DVDD3IDlWt8e0m4p+mw==

<SEC-DOCUMENT>0001050925-06-000014.txt : 20060515
<SEC-HEADER>0001050925-06-000014.hdr.sgml : 20060515
<ACCEPTANCE-DATETIME>20060515170225
ACCESSION NUMBER:		0001050925-06-000014
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060331
FILED AS OF DATE:		20060515
DATE AS OF CHANGE:		20060515

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GSI GROUP INC
		CENTRAL INDEX KEY:			0001050925
		STANDARD INDUSTRIAL CLASSIFICATION:	FARM MACHINERY & EQUIPMENT [3523]
		IRS NUMBER:				370856587
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-43089
		FILM NUMBER:		06842488

	BUSINESS ADDRESS:	
		STREET 1:		1004 EAST ILLINOIS ST
		CITY:			ASSUMPTION
		STATE:			IL
		ZIP:			62510
		BUSINESS PHONE:		2172264421

	MAIL ADDRESS:	
		STREET 1:		1004 EAST ILLINOIS ST
		CITY:			ASSUMPTION
		STATE:			IL
		ZIP:			62510
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>march0610q.txt
<DESCRIPTION>10Q-MARCH 2006
</DOCUMENT>
</SUBMISSION>