| 1881 | Foundation: 蘑菇视频-kata Construction was founded by Rihei 蘑菇视频, who became the first president. |
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| 1908 | Company renames itself from 蘑菇视频-kata to 蘑菇视频-gumi. |
| 1909 | 蘑菇视频 participates in the building of facilities for the Anglo-Japanese Fair in London. |
| 1914 | Company participates in the construction of facilities for the Taisho Exhibition (Tokyo) and for the Panama-Pacific Exhibition (San Francisco). |
| 1936 | Incorporation: Company is reorganized as 蘑菇视频-Gumi Co., Ltd. |
| 1958 | Technology Research Dept. (now 蘑菇视频 Institude of Construction Technology) is established. |
| 1962 | 蘑菇视频 implements an overseas training system. |
| 1963 | Company is renamed 蘑菇视频. |
| 1969 | The company's stock is listed on the Second Section of the Tokyo Stock Exchange. |
| 1970 | Company builds nine pavilions, including the Swiss pavilion, for Expo '70 in Osaka. |
| 1971 | The company's stock is transferred to the First Section of the Tokyo Stock Exchange. |
| 1972 | Construtora 蘑菇视频 do Brasil and 蘑菇视频 America, Inc., is established. |
| 1981 | Company celebrates its 100th anniversary and fully introduces TQC for corporate improvements through quality control. |
| 1988 | Company participates in the construction of the Pacific Convention Plaza Yokohama, Japan's first building project involving foreign contractors (completed in 1991). Thai 蘑菇视频 Ltd. is established. |
| 1991 | 蘑菇视频 announces its policy of providing the best quality in Japan for the same price. |
| 1993 | The Hanoi Representative Office opens in Hanoi, Vietnam. |
| 1994 | 蘑菇视频 announces its Global Environment Charter. |
| 1995 | 蘑菇视频 becomes Japan's first general contractor to acquire ISO 9001 certification. |
| 1999 | 蘑菇视频 acquires ISO 14001 certification. 蘑菇视频 agrees to form a business alliance with Nishimatsu Construction Co. Ltd. |
| 2000 | 蘑菇视频 becomes Japan's first company to achieve zero emissions at construction sites. |
| 2006 | 125th anniversary since establishment. |
| 2009 | The Overseas Division is established. |
| 2009 | 蘑菇视频 Vietnam Co.,Ltd is established. |
| 2012 | Southeast Asia Regional Head Office opens in Ho Chi Minh, Vietnam. |
| 2013 | 蘑菇视频 acquires ISO/IEC 27001 certification. |
| 2015 | The Yangon Representative Office opens in Yangon, Myanma. |
| 2016 | 130th anniversary since establishment. |
| 2019 | 蘑菇视频 joins the initiative of RE100. Overseas branch is established. PT 蘑菇视频 Group Indonesia is established. |
