| October 1946: | Founded as Hori Denki Seisakusho at 1-36 Andou-cho, Chuo-ku, Osaka |
| March 1961: | Renamed Taisei Denki Kougyou KK; incorporated as a kabushiki kaisha |
| May 1965: | Relocated to 1-11-23 Higashi-Kohashi, Higashinari-ku, Osaka |
| April 1973: | Design and manufacturing of automatic control boards started |
| February 1979: | Maintenance of cargo handling machines started at Osaka Minami Harbor |
| July 1979: | Maintenance of Kintetsu automatic ticket vending machines started |
| November 1984: | Maintenance of commuter's ticket vending machines started in Tokyo |
| December 1984: | Tokyo Branch opened |
| April 1985: | Maintenance of hand-held on-board ticketing machines started |
| October 1987: | Separated from Taisei Denki Kougyou KK as an independent company |
| April 1990: | Design of station service equipment started |
| April 1991: | Maintenance of station service equipment for JR started |
| October 1992: | Headquarters relocated to 1-8-2 Tamatsu, Higashinari-ku, Osaka |
| February 1994: | First air cleaner developed |
| April 1994: | Subsidiary company Taisei Techno Services Co., Ltd. established |
| August 1994: | Kyushu Branch opened |
| May 1997: | First roll filter developed |
| February 1998: | First ozone-based deodorizer developed |
| October 1999: | Fences/doors on platform installed for Mita Subway Line in Tokyo |
| April 2000: | Fare adjustment machines installed in East Japan Railway stations |
| July 2000: | ISO9001: 2000 certified |
| December 2000: | Maintenance of machines for financial institutions such as ATM |
| December 2000: | Nagoya Branch opened |
| April 2002: | Development of the air damper |
| May 2002: | Design and manufacture of the destination display unit for Chiba monorail |
| October 2002: | Development of the rail lubricator |
| June 2003: | Development of the panel heater for the space for wheel chairs |
| October 2003: | Design and manufacture of the air curtain for train doors in cold district |
| March 2004: | Development of the audio guiding device for physically handicapped people |
| February 2005: | Development of the door information display unit for physically handicapped people |
| April 2007: | Development of 200W wind turbine |
| June 2009: | Development of Comfort sensor for superior first class cabin of new E5 Tohoku Sinkansen model |
| July 2010: | Fences/doors　on platform Installed for JR Yamanote line |
| July 2010: | The agreement signed with Montana State University Billings for the joint development of wind turbine |
| January 2011: | Development of 10KW wind turbine |
| April 2011: |
Open Billings Branch in MT USA |
| April 2013: | Development of hot water toilet seat for power supply |
| June 2013: |
Development of plasma ozone deodorization machine |
| July 2013: | Development of attendant call display machine |
| November 2013: |
Development of automatic cleaning type roll filters |
| July 2014: | Development of cyclone dust collector |
| July 2014: |
The development of the wind turbine for the school frashers |
| April 2015: | Development of law level sensor |
| June 2015: |
It was installed 5.5KW wind turbine on the roof of the Nagoya post office |
