2016
- May 2016: GENZ Co., Ltd. established
2018
- March 2018: Obtained a license for temporary staffing services
- April 2018: Relocated GENZ headquarters to Yotsuya
- September 2018: Opened GENZ QCLab in Yotsuya
2019
- July 2019: Obtained ISMS certification
2020
- January 2020: Opened Sapporo Branch
- Feb 2020 Acquired a subsidiary through a stock transfer
- March 2020: Relocated GENZ QCLab to Akihabara
- April 2020 Transferred part of the business to ONE WEDGE Co., Ltd.
- April 2020: Opened Home Box Shinjuku Branch
2021
- July 2021: Change in President and CEO
- October 2021: Capital and business alliance with Porto Co., Ltd.
2022
- September 2022: Establishment of Subsidiary CATION Co., Ltd.
2023
- April 2023: Relocated GENZ Headquarters and QCLab to Ochanomizu
- May 2023: Opened the Aomori Branch
- May 2023: Signed a "Basic Agreement on the Establishment of a Business Office" with Aomori Prefecture and Aomori City
2024
- March 2024: Entered into a capital and business alliance with Green Waters Co., Ltd.
- May 2024: Entered into a capital and business alliance with TIGEREYE Co., Ltd.
2025
- July 2025: Entered into a capital and business alliance with Agens Co., Ltd.
- July 2025: Made SHADO Co., Ltd. a wholly owned subsidiary
- August 2025: Entered into a capital and business alliance with GOAT Co., Ltd.
2026
- July 2026: Change in President and CEO