

| March 1995 | TriIs Incorporated. established to develop, design, manufacture, sell computer hardware and software |
|---|---|
| April 2001 | Listed on NASDAQ Japan (currently JASDAQ of Tokyo Stock Exchange) |
| January 2007 | Moved to a pure holding company system to have subsidiaries operate all businesses (to confine to owning and managing subsidiaries) |
| April 2007 | Changed its name to TriIs Incorporated. |
| November 2007 | Made then INA New Engineering Research Institute (currently Crearia Inc.) into a subsidiary. |
| November 2008 | Made Tokyo Blouse Inc. and HAMANO1880 (currently Hamano Inc.) into a subsidiary |
| February 2009 | Head office Moved to Chiyoda-ku, Tokyo |
| May 2010 | Established Selective Inc. |
| June 2010 | Established TriIs Business Services Inc. |
| January 2011 | Launched licensing business of subsidiaries' trademarks |
| December 2011 | Acquired all shares of TriIs International Inc. (then Tokyo Blouse Inc. (Taiwan)) from Tokyo Blouse Inc. and made it a directly owned subsidiary. TriIs International Inc. inaugurated new services in Taipei. |
| January 2016 | Established TRIIS INTERNATIONAL AMERICA INC. in USA |
| July 2018 | Tokyo Blouse Inc. and Selective Inc. merged into New Hamano Inc. |