| 1965-12 |
Started as a personal produce shop |
| 1965-12 |
December 1965 (Showa 40) |
| 1965-12 |
Established in December 1965. |
| 1977-02 |
Opened |
| 1984-09 |
Reorganized Taira-ya Store Co., Ltd. into |
| 1990-03 |
Joined the cooperative chain of voluntary chains, Selco Chain |
| 1991-03 |
Merged with Toa Mart Co., Ltd., and changed the trade name to |
| 1992-03 |
Merged with Ajiyoshiya Co., Ltd. (Headquarters: Sakuragawa City, Saitama Prefecture) |
| 1996-10 |
Listed shares on the Japan Securities Dealers Association over-the-counter |
| 1997-07 |
Acquired business rights from Ares Ueno Co., Ltd. and established Taira-ya North Kanto Co., Ltd. |
| 1998-06 |
Acquired three stores from Well Save Co., Ltd. |
| 1999-09 |
Merged with Haimart Co., Ltd. and changed the trade name to |
| 2001-11 |
Started operation of Ibaraki Logistics Center (Sakuragawa City, Ibaraki Prefecture) |
| 2003-02 |
Acquired business from Matsuhishi Trading Co., Ltd. and established Season Select Co., Ltd. |
| 2004-03 |
Listed on the Second Section of the Tokyo Stock Exchange |
| 2004-08 |
Made Masuda Co., Ltd. (Headquarters: Joso City, Ibaraki Prefecture) a consolidated subsidiary |
| 2004-11 |
Yamauch Company (Head Office: Ibaraki Prefecture, Ishioka City) was made a consolidated subsidiary |
| 2005-02 |
Designated as First Section of Tokyo Stock Exchange |
| 2006-10 |
Eco's Kawagoe Prepared Food Factory (now Group Food Factory) started operation |
| 2007-02 |
Tokorozawa Logistics Center (Saitama Prefecture, Tokorozawa City) started operation |
| 2007-03 |
Joined Nichiryu Group (Japan Distribution Industry Co., Ltd.) |
| 2008-08 |
Transferred Season Select Co., Ltd. to MaxValu Tokai Co., Ltd. |
| 2008-10 |
Masuda Co., Ltd. and Yamauch Co., Ltd. merged (surviving company: Masuda Co., Ltd.) |
| 2010-02 |
Received the Food Recycling Promotion Minister's Award Encouragement Prize (Recycling Loop Division) for FY21 |
| 2013-11 |
Received the 22nd Food Safety and Security Contribution Award Encouragement Prize hosted by Japan Food Industry Newspaper |
| 2014-05 |
Heisei Corporation acquired logistics centers and two stores from Gourmet Co., Ltd. |
| 2014-09 |
Established logistics subsidiary TS Logitec Co., Ltd. (Head Office: Akishima City, Tokyo) |
| 2015-11 |
Won an award at the 7th Food Action Nippon Award 2015 |
| 2016-06 |
Utsunomiya Logistics Center (Tochigi Prefecture, Utsunomiya City) started operation |
| 2016-09 |
Taira-ya Co., Ltd. (consolidated subsidiary) acquired three supermarkets in Tochigi Prefecture from Sanmar Co., Ltd. |
| 2020-09 |
Yono Food Center Co., Ltd. (Head Office: Saitama City, Saitama Prefecture) was made a consolidated subsidiary |
| 2022-04 |
Moved to Prime Market of Tokyo Stock Exchange |
| 2024-09 |
Cocos Nakamura Co., Ltd. (Head Office: Taito City, Tokyo) was made a consolidated subsidiary |
| 2024-11 |
Fujimino Logistics Center (Miyoshi Town, Iruma District, Saitama Prefecture) started operation |
