| 1978 |
| June. | Established as Sogo Medical Leasing Co., Ltd., with a capitalization of ¥ 20 million. |
| Dec. | Capitalization increased to ¥ 30 million. |
|
| 1980 |
| Nov. | Capitalization increased to ¥ 50 million. |
|
| 1981 |
| Oct. | Kagoshima Sales Office opened (now Kagoshima Branch). |
|
| 1984 |
| Feb. | S.M.E Co., Ltd. established as wholly-owned subsidiary. |
|
| 1987 |
| Oct. | Kumamoto Sales Office opened (now Kumamoto Branch). |
|
| 1989 |
| Aug. | Fukuoka Branch and Kitakyushu Branch opened. |
| Oct. | Name changed to SOGO MEDICAL CO., LTD. |
|
| 1991 |
| Mar. | S.M.E Co., Ltd. renamed Sogo Pharmacy Co., Ltd. |
| Apr. | Hiroshima Sales Office opened (now Hiroshima Branch).
Sogo Medical Service Co., Ltd. established as wholly-owned subsidiary. |
|
| 1992 |
| May. | Takamatsu Sales Office opened (now Takamatsu Branch). |
|
| 1993 |
| Apr. | Okayama Sales Office opened (now Okayama Branch). |
| Oct. | Capitalization increased to ¥ 100 million. |
|
| 1994 |
| Apr. | Miyazaki Sales Office opened (now Miyazaki Branch). |
| Oct. | Somtech Co., Ltd. established as wholly-owned subsidiary. |
|
| 1995 |
| Apr. | Nagasaki Sales Office opened (now Nagasaki Branch).
Oita Sales Office opened (now Oita Branch). |
|
| 1996 |
| Mar. | Capitalization increased to ¥ 212 million. |
| Apr. | Okinawa branch opened. |
| Dec. | Capitalization increased to ¥ 500 million. |
|
| 1997 |
| May. | Sogo Pharmacy Co., Ltd. and Sogo Medical Service Co., Ltd. merged. |
| Oct. | Tokyo Branch opened. |
|
| 1998 |
| Sep. | Capitalization increased to ¥ 680 million. |
|
| 1999 |
| Apr. | Matsuyama Sales Office opened (now Matsuyama Branch). |
|
| 2000 |
| Jan. | Business tie-up with Medical Support Co., Ltd.
(now LEOC JAPAN Co., Ltd.). |
| Apr. | Yamaguchi Branch and Sendai Sales Office (now Sendai Branch) opened. |
| Aug. | Capitalization increased to ¥ 1,012 million.
Listed on Second Section, Tokyo Stock Exchange. |
|
| 2001 |
| Apr. |
Sapporo Branch, Nagoya Branch, Osaka Branch, Saga-Chikugo Branch (in April 2003,integration into Fukuoka Branch) and Kochi Branch opened.
All outstanding shares of Orix Media Supply Co., Ltd. acquired, name changed to Sogo Media Supply Co., Ltd.
Sogo Healthcare Service Co., Ltd. established as a wholly-owned subsidiary. |
| July. | Capitalization increased to ¥ 2,461 million. |
| Sep. | Listed on First Section, Tokyo Stock Exchange. |
| Oct. | Acquisition with Sogo Media Supply Co., Ltd.
Yokohama Branch, Hokuriku Branch (now Hokuriku Sales Office), Maebashi Sales Office (now Kitakanto Branch), Niigata Sales Office (in April 2008,integration into Kitakanto Branch), Matsumoto Sales Office and Shizuoka Sales Office (now Shizuoka Branch) opened. |
|
| 2002 |
| Jan. |
All outstanding shares of Hello Medical Co., Ltd., Hello Network Co., Ltd., Hase Dispensing Pharmacy Co., Ltd. acquired. |
| Mar. | Kobe Branch opened. |
| Apr. | Saitama Branch and Chiba Branch (in April 2008,integration into Tokyo Branch) opened. |
| Oct. | Morioka Satellite Office (in April 2009,integration into Sendai Branch) opened. |
|
| 2003 |
| Apr. |
Hello Network Co., Ltd. merged with Hello Medical Co., Ltd. and Hase Dispensing Pharmacy Co., Ltd. and renamed to Sogo Medical pharmacy Chubu Co., Ltd. |
| Jun. | Business tie-up with Hitachi Capital Corporation. |
| Oct. | Sogo Medical invested Sogo SMO Corp. and initiated a joint venture (SMO) with Medical Industries Corporation(now MIC Medical Corporation). |
| Nov. | MEDI-QOL Inc. established as a joint venture with Mitsui & Co.,Ltd. |
| Dec. | Sogo Medipro Co.,Ltd established as wholly-owned subsidiary. |
|
| 2004 |
| Jan. | Accepted a third-party allocation of shares from Medical Industries Corporation(now MIC Medical Corporation). |
| Feb. | Head office function relocated. |
| Oct. | SME Co.,Ltd.(now Sogo Real Estate Co., Ltd.) established as wholly-owned subsidiary. |
|
| 2007 |
| Apr. | Kyoto Satellite Office opened. |
| Aug. | Formed business alliance with Mitsui & Co. in the area of medical and healthcare business. |
| Sep. | Mitsui & Co. became the top shareholder through a private placement.(Increased capital to ¥ 3,221 million) |
|
| 2009 |
| Sep. | All outstanding shares of Torisen Pharmacy Co., Ltd. acquired, name changed to Sogo Medical Pharmacy Kanto Co., Ltd. |
| Nov. | Business tie-up with EP-Mint Co., Ltd. |
|
| 2010 |
| Mar. | Partial unification of head office. |
| Jun. | All outstanding shares of Aoba Pharmacy Co., Ltd. acquired. |
| Oct. | Sogo SMO Corp. and MEDI-QOL Inc. merged. |
|
| 2011 |
| Jan. | S.M.E Co., Ltd. established as wholly-owned subsidiary. |
| Nov. | Sogo Care Network Co., Ltd. established as nursing care facility related business. |
|
| 2012 |
| Jan. | All outstanding shares of Shinkugenuma Pharmacy Co., Ltd. acquired. |
| Mar. | All outstanding shares of Hibari Pharmacy Co., Ltd. acquired. |
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