|1983||Jun.||Osaka Gas Information System Co., Ltd. (OGIS) established as a wholly-owned subsidiary of Osaka Gas Co., Ltd.|
|1984||Jun.||OGIS Computer School "NEED" opened.|
|1985||Apr.||Osaka Gas Information System Research Institute Co., Ltd. (OGIS-RI) established as a wholly-owned subsidiary of OGIS.|
|Tokyo branch office opened.
Iwasaki Computer Center (ICC) completed.
|1987||Sep.||ICC recognized by the Ministry of International Trade and Industry (MITI) for its implementation of comprehensive safety measures.|
|1988||Feb.||OGIS-RI Nanko office opened.|
|1989||Oct.||Head office moved to present location.|
|1990||Feb.||Recognized as a system integrator by MITI.|
|U.S. Silicon Valley office opened.
OGIS and OGIS-RI merged to form OGIS-RI Co., Ltd.
|Recognized by MITI as a specialized system operation company.
Amagasaki office opened.
|1997||Jun.||Helpdesk center opened.|
|1999||Jun.||Registered for ISO 9001 review.|
|2000||Oct.||Silicon Vallay Office incorporated to form OGIS International, Inc.|
|Capital participation in Ube Information Systems, Inc.
Capital participation in SYSTEM ANSWER Inc.
|Recognized by the award of the Privacy Mark by JIPDEC.
Toyota office opened.
|Nagoya office opened.
Katsushika Recycle Center opened.
|2006||Jul.||Capital participation in Sakura Information Systems co., Ltd.|