| 2007-10-01 |
Established: October 1, 2007 |
| 2018-04 |
Reopening of Five Star Tomei Yokohama Jeep Tomei Yokohama: Establishment of Keu Toyama Interchange Store |
| 2018-07 |
Establishment of Keu Asahikawa Store |
| 2018-08 |
Establishment of Keu Takaoka Store |
| 2018-11 |
Establishment of Keu Yamagata Tsuruoka Store |
| 2019-01 |
Reopening of Sterren Setagaya Mercedes-Benz Yokosuka: Reopening of Keu Yokosuka Store |
| 2019-04 |
Establishment of Motolen Tomei Yokohama BMW Machida Tsurukawa, MINI Machida Tsurukawa |
| 2019-07 |
Establishment of Keu Niigata Meike Store |
| 2020-01 |
Establishment of Five Star Tomei Yokohama Jeep Shin-Yurigaoka |
| 2020-01 |
Full subsidiary of Sterren Yokohama Higashi through share transfer |
| 2020-03 |
Establishment of Keu Shonan Hiratsuka Store |
| 2020-03 |
Establishment of Sterren Setagaya Mercedes-Benz Konan-dai |
| 2020-07 |
Establishment of Keu Obihiro Store |
| 2021-01 |
Establishment of Motolen Tomei Yokohama BMW Chofu, BMW Premium Selection Chofu |
| 2021-07 |
Establishment of Keu Niigata Joetsu Store |
| 2021-11 |
Sterren Yokohama East Mercedes-Benz Yokohama East relocates and reopens |
| 2022-02 |
Motorrad East Yokohama BMW Premium Selection Yokohama Mitsuzawa established |
| 2022-04 |
Due to the review of the market classification of the Tokyo Stock Exchange, the transition from the First Section of the Tokyo Stock Exchange to the Standard Market: Sterren Setagaya Mercedes-Benz Hachioji established |
| 2022-12 |
Sterren Setagaya Mercedes EQ Yokohama (currently Mercedes-Benz Yokohama Central) established: Sterren Setagaya Stars @ Mercedes-Benz Ginza established |
| 2023-01 |
Sterren Setagaya absorbed and merged with Sterren Yokohama East |
| 2023-12 |
Five Star East Yokohama Jeep Atsugi established: K-You Utsunomiya Interpark Store relocated and reopened |
| 2024-11 |
K-You Aomori Route 7 Store established |
| 2025-03 |
K-You Nagano Store established |
| 2025-07 |
Volkswagen business of Five Star East Yokohama split: Fully owned subsidiary Sterren Nitamata through share transfer |
| 2025-09 |
Fully owned subsidiary Sterren Chuo through share transfer |
| 2026-02 |
K-You Kawagoe Inter Store established |
| 2026-04 |
Sterren Setagaya absorbed and merged with Sterren Nitamata |
