1840 - Iwakichi Kajima, the founder of the present-day company begins carpentry business in Edo
1860 - Kajima pioneers first western-style building in Yokohama
1880 - Establishes Kajima Gumi
1899 - Railway construction projects begin in Korea and Taiwan
1923 - Great Kant? earthquake - Kajima participates in the reconstruction work
1930 - Incorporation of the company
1945 - Postwar reconstruction begins with Kajima's support
1949 - Founds Kajima Technical Research Institute
1950 - Pioneers first joint venture with Morrison-Knudsen
1957 - Completes Japan's first nuclear reactor
1959 - Construction of the Tokaido Shinkansen begins
1961 - The company is listed on Tokyo and Osaka Stock Exchange
1963 - Becomes world no. 1 in construction Constructs facilities for 1964 Tokyo Olympic Games1964 - Establishment of Kajima International Incorporated in Los Angeles, California, U.S.
1968 - Japan's first high-rise building, the Kasumigaseki Building, is completed
1975 - Founds PT. Waskita Kajima, as a joint venture with Waskita Karya
1987 - Establishment of Kajima Europe B.V. in the Netherlands
1988 - Establishment of Kajima Overseas Asia Pte Ltd. in SingaporeThe Seikan Tunnel, the world's longest tunnel, is completed1994 - Construction of Kansai International Airport is finalized
1998 - Akashi Kaikyo Bridge is completedBought all of Waskita Karya's share on Waskita Kajima, resulting Kajima as majority shareholder of the company. The company then renamed to Kajima Indonesia 2001 - The Suez Canal Bridge is completed
2002 - Hawaiian Dredging is acquired from Dillingham Construction.
2003 - Establishment of Kajima Construction Co., Ltd.
2010 - Construction of Resorts World Sentosa in Singapore completed
2011 - The company completed the construction of the Dubai Metro
