| April 1994 |
April 25 Established Proassist Limited |
| April 1998 |
Received license of specified worker dispatching undertaking issued by Ministry of Health, Labor and Welfare |
| June 2001 |
Reorganized as Proassist, Ltd. |
| October 2001 |
Opened branch Office in Tokyo |
| February 2002 |
Moved head office to Chuo-ku Osaka |
| June 2007 |
Received license for general worker dispatching undertakings issued by Ministry of Health, Labor and Welfare |
| June 2007 |
Patent was granted for “Ultrasonic Sensor Signal Processing System” |
| June 2008 |
Signed Technology Collaboration Agreement with TATA ELXSI Ltd. |
| November 2008 |
Received “ The best product design and manufacturing Company of Osaka Year 2008 Award” |
| June 2008 |
Qualified for Privacy Mark Authorization |
| March 2010 |
Received Job Placement Service License issued by Ministry of Health, Labor and Welfare |
| April 2010 |
Opened branch office in Nagoya |
| April 2011 |
Established overseas subsidiary “Proassist Suzhou, Ltd.” In Suzhou, China |
| February 2012 |
Received “Osaka City Excellence Company Award” |
| July 2012 |
Patent was granted for “Leaving Sickbed Alarm Prediction Device and its Prediction Method” |
| May 2013 |
Patent was granted for “Flow Line Measuring System” |
| June 2013 |
CEO Kyoco Ikoma received Women Challenge Award Special Prize sponsored by Cabinet Office, government of Japan |
| December 2013 |
Awarded as “Top 300 Most Aggressive Small to Medium Enterprises and Small Entities” sponsored by Ministry of Economy, Trade and Industry |
| February 2015 |
CEO Kyoco Ikoma received "Shining Women Award of the 53rd Kansai Economic and Management Summit Awards 2015" |
| March 2015 |
Received "FY 2014 Diversity Management Section 100 - Collection of Best Practices"(Awards given by the Minister of Economy,Trade and Industry) |
| September 2016 |
Moved head office to Kitahama Higashi, Chuo-ku, Osaka |
| June 2017 |
Moved the Nagoya sales office |
| July 2017 |
Patent was granted for “Sleep state Determination Device, Sleep State Determination Method Using The Same, And Dozing Prevention Device” |
| June 2019 |
Patent was granted for “Delivery Condition Monitoring system, Temperature measurement unit, and Delivery Condition Monitoring Method” |
| November 2020 |
Patent was granted for “Ultrasonic Array Sensor System” |
| May 2021 |
Former CEO Kyoko Ikoma was appointed as Kansai Keizai Doyukai (Kansai Association of Corporate Executives) of Co-Chairperson. |
| August 2023 |
Atsushi Sakata was appointed as the new CEO. |
| February 2024 |
Certified "Osaka City Women's Leading Campany" |
| September 2024 |
Moved the Tokyo sales office |
| March 2026 |
Certified as “Health Management Excellent Corporation 2026 (Small and Medium-sized Enterprise Division)” |