| 1840 | Iwakichi Kajima begins carpentry business in Edo (present day Tokyo) |
|---|---|
| 1860 | Kajima pioneers first western-style building in Yokohama (Ei-Ichiban Kan) |
| 1880 | Establishes Kajima Gumi |
| 1891 | Construction begins on Usui Railway Line |
| 1899 | Railway construction projects begin in Korea and Taiwan |
| 1918 | Construction of Tanna Tunnel begins (17-year project) |
| 1923 | Great Kanto Earthquake after Kajima participates in reconstruction work |
| 1924 | Completes Japan's first concrete dam (Ohmine Dam) |
| 1930 | Kajima becomes incorporated company (issues stock, capitalized at 3 million yen) |
| 1945 | Support of postwar reconstruction begins |
| 1949 | Founds Kajima Technical Research Institute (first research facility in Japan's construction industry) |
| 1950 | Pioneers first joint venture with Morrison-Knudsen of the U.S.A. |
| 1957 | Completes Japan's first nuclear reactor |
| 1959 | Construction of Tokaido Shinkansen (Bullet Train) Line begins |
| 1961 | Lists stocks on Tokyo and Osaka Stock Exchanges |
| 1963 | Attains world No. 1 ranking in construction (total contract value) Constructs facilities for Tokyo Olympic Games Completes New Tanna Tunnel for Shinkansen |
| 1964 | Establishes Kajima International Incorporated (KII) in Los Angeles, CA, U.S.A. |
| 1968 | Completes Japan's first high-rise building (Kasumigaseki Building) |
| 1969 | Kajima Design Division wins bid for new Supreme Court Building |
| 1971 | Completes 47-story Keio Plaza Hotel (Japan's first super-high-rise hotel) in Shinjuku |
| 1978 | Introduces company total quality control Completes International Trade Center in Berlin |
| 1982 | Receives Deming Prize [for advances in guality improvement] |
| 1983 | Establishes Chung-Lu Sino-Kajima Construction Co., Ltd. |
| 1984 | Completes New Kokugikan Sumo Arena |
| 1987 | Establishes Kajima Europe B.V. (KE) in the Netherlands |
| 1988 | Establishes Kajima Overseas Asia Pte Ltd. (KOA) in Singapore Completes Seikan Tunnel (world's longest tunnel) |
| 1994 | Completes Kansai International Airport |
| 1995 | Renovates Suez Canal tunnel |
| 1997 | Completes Tokyo Wan Aqualine |
| 1998 | Completes Akashi Kaikyo Bridge |
| 2003 | Completes Shiodome Tower |
| 2006 | Completes Akihabara Crossfield |
| 2007 | Completes Kajima Head Office, Kajima Akasaka Annex |
| 2008 | Completes Breezé Tower |
| 2009 | Celebrates 170th anniversary of establishment |
1860 Ei-Ichiban Kan
1918 Tanna Tunnel
1924 Ohmine Dam
1957 Nuclear Reactor
1963 New Tanna Tunnel
1968 Kasumigaseki Building
1974 Shinjuku Skyline
1984 Kokugikan Sumo Arena
1998 Akashi Kaikyo Bridge
2003 Shiodome Tower
2006 Akihabara Crossfield
2007 Kajima Head Office
2008 Breezé Tower
