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As of April 2009
| Aug. 1, 1933 |
Started business. |
| Mar. 21, 1954 |
Incorporated as Tsuchiya gumi Co., Ltd. with a Share Capital of 3 million JPY. |
| Feb. 1, 1964 |
Share Capital increased to 48 million yen. |
| Jan. 1, 1966 |
Nagoya Sales Office upgraded to Nagoya Branch Office. |
| Jan. 5, 1972 |
Share Capital increased to 100 million yen. |
| Mar. 18, 1972 |
Kasugai Sales Office opened. |
| Dec. 18, 1972 |
Hikone Sales Office upgraded to Shiga Branch Office. |
| Mar. 21, 1978 |
Capital increased to 150 million yen. |
| Dec. 21, 1978 |
Osaka Sales Office upgraded to Osaka Branch Office. |
| Jan. 1, 1984 |
Tokyo Branch Office opened. |
| Mar. 1, 1988 |
Mie Sales Office upgraded to Mie Branch Office, and Office name of Tono Sales Office changed to Toki Sales Office.
Tajimi Sales Office opened. |
| Sep. 29, 1990 |
Share Capital increased to 250 million JPY. |
| Oct. 1, 1991 |
Share Capital increased to 300 million JPY. |
| July 1, 1992 |
Kani Sales Office opened. |
| July 2, 1993 |
Takayama Sales Office opened. |
| Dec. 2, 1998 |
Nishi-Tokyo Sales Office opened. |
| Dec. 18, 1998 |
Head Office, Shiga Branch Office, Shiga Branch Office, Osaka Branch Office and Mie Branch Office obtained ISO9001 (JQA-2885)certified in Construction. |
| June 11, 1999 |
obtained ISO9002 (JQA-QM3433) certification in civil engineering. |
| July 16, 1999 |
Nagoya Branch Office and Tokyo Branch Office obtained ISO9002 (JQA-QM3558) in constraction. |
| Apr. 1, 2000 |
Shizuoka Sales Office opened. |
| Sep. 21, 2000 |
Branch offices in Tokyo, Osaka and Nagoya upgraded to regional offices.
Kani Sales Office renamed Chuno Sales Office, Takayama Sales Office renamed Hida Sales Office, and Toki and Tajimi sales offices merged to form Tono Sales Office. |
| Oct. 31, 2000 |
Share Capital increased to 450 million yen. |
| Dec. 30, 2000 |
Share Capital increased to 1.8 billion yen. |
| Apr. 1, 2001 |
Yokohama Sales Office opened. |
| Dec. 14, 2001 |
head office administrative sales obtained ISO14001 (JQA-EM1975)certification. |
| Apr. 1, 2002 |
Saitama Sales Office opened. |
| Dec. 27, 2002 |
Regional offices in Toyo, Kansai and Nagoya and branch offices in Gifu, Shiga and Mie obtained ISO14001 (JQA-EM2895)certification in construction. |
| Feb. 5, 2003 |
Hong Kong representative office opened. |
| Oct. 1, 2003 |
Setagaya Sales Office opened. |
| Oct. 10, 2003 |
Tsuchiya Gumi Hong Kong Co., Ltd. incorporated. |
| Oct. 11, 2003 |
Tsuchiya Gumi U.S.A. Co., Ltd. incorporated in Los Angeles, California. |
| Dec. 4, 2003 |
Tsuchiya Gumi Europe GmbH incorporated in Stuttgart, Germany. |
| Feb. 9, 2004 |
Hong Kong representative office deregistered with incorporated of Tsuchiya Gumi Hong Kong Co., Ltd. |
| Apr. 1, 2004 |
Yokohama Sales Office upgraded to Yokohama Branch Office. |
| Aug. 1, 2004 |
Kyushu Branch Office opened. |
| Jan. 1, 2005 |
RMC Center opened. |
| Apr. 1, 2005 |
Tohoku Branch Office and Shikoku Sales Office opened. |
| May. 1, 2005 |
Chugoku Branch Office opened. |
| May. 1, 2006 |
Okinawa Branch Office opened. |
| Oct. 1, 2006 |
Hokkaido Branch Office opened. |
| Nov.13, 2006 |
Representative office of Tsuchiya Gumi Hong Kong co., Ltd. registered in Hanoi,Vietnam |
| Mar. 3, 2008 |
Tsuchiya Gumi Hangary Kft. incorporated. |
| Arp. 1, 2008 |
Hokuriku Branch office opened. |
| Jun. 1, 2008 |
Gifu Branch office reorganised to Gifu sales office. |
| Aug. 1, 2008 |
Okayama Sales office opened.
Singapore Branch office of Tsuchiya Gumi co., Ltd. registered.
Tsuchiya Malaysia SDN. BHD. incorporated in Kuala Lanpor.
Tsuchiya Gumi Europe GmbH in Stuttgart deregistered and Tsuchiya Germany GmbH registered in Munich, Germany.
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| Jul.30, 2008 |
Tsuchiya UK Co., Ltd. incorporated in London, UK. |
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