| 1840 |
 |
Iwakichi Kajima founds a carpentry business in Edo (present-day Tokyo) |
 |
 |
 |
 |
| 1998 |
 |
Akashi Kaikyo Bridge |
 |
 |
 |
 |
| 2006 |
 |
Akihabara Crossfield |
|
 |
 |
 |
 |
| 1968 |
 |
Kasumigaseki Building |
 |
 |
 |
 |
| 1984 |
 |
New Kokugikan Sumo Arena |
 |
 |
 |
 |
| 2006 |
 |
Toranomon Towers
Residence & Office |
|
 |
| 1860 |
 |
Kajima pioneers Japan’s first Western-style building in Yokohama (Ei-Ichiban Kan: Jardine Matheson’s trade house) |
 |
| 1891 |
 |
Begins construction on the Usui Railway Line |
 |
| 1899 |
 |
Begins railway construction projects in Korea and Taiwan |
 |
| 1918 |
 |
Begins constructing the Tanna Tunnel (17-year project) |
 |
| 1923 |
 |
Participates in reconstruction work following the Great Kanto Earthquake |
 |
| 1924 |
 |
Completes Japan’s first concrete dam (Ohmine Dam) |
 |
| 1945 |
 |
Begins support of postwar reconstruction |
 |
| 1949 |
 |
Founds the Kajima Technical Research Institute (the first research facility in Japan’s construction industry) |
 |
| 1950 |
 |
Pioneers Japan’s first joint venture construction project in Okinawa with Morrison-Knudsen of the United States |
 |
| 1957 |
 |
Completes Japan’s first nuclear reactor |
 |
| 1959 |
 |
Begins construction of the Tokaido Shinkansen (Bullet Train) Line |
 |
| 1961 |
 |
Lists its stock on the Tokyo and Osaka stock exchanges |
 |
| 1963 |
 |
Attains the world’s No.1 construction company ranking (by total contract value)
Constructs stadiums for the Tokyo Olympic Games
Completes the New Tanna Tunnel for the Shinkansen |
 |
| 1968 |
 |
Completes Japan’s first high-rise building in Tokyo (Kasumigaseki Building) |
 |
| 1971 |
 |
Completes the 47-story Keio Plaza Hotel (Japan’s first high-rise hotel), in Tokyo’s Shinjuku district |
 |
| 1974 |
 |
Completes various high-rise office buildings in Shinjuku, Tokyo |
 |
| 1978 |
 |
Completes the International Trade Center in Berlin, then East Germany |
 |
| 1984 |
 |
Completes the New Kokugikan Sumo Arena in Tokyo |
 |
| 1988 |
 |
Completes the Seikan Tunnel in Japan (world’s longest tunnel of about 54 km) |
 |
| 1994 |
 |
Completes the Kansai International Airport, Osaka |
 |
| 1995 |
 |
Renovates the Suez Canal tunnel, Egypt |
 |
| 1997 |
 |
Completes the Tokyo Wan Aqualine |
 |
| 1998 |
 |
Completes the Akashi Kaikyo Bridge, Hyogo Prefecture |
 |
| 2000 |
 |
Completes AT&T Park, home of the San Francisco Giants |
 |
| 2002 |
 |
Completes Saitama Stadium for 2002 FIFA World Cup-Korea/Japan |
 |
| 2003 |
 |
Completes the Shiodome Tower in Tokyo |
 |
| 2005 |
 |
Completes Nihonbashi Mitsui Tower in Tokyo |
 |
| 2006 |
 |
Completes Akihabara Crossfield in Tokyo |
 |
| 2006 |
 |
Completes Toranomon Towers Residence & Office in Tokyo |
 |
| 2007 |
 |
Completes Metropolitan Expressway, Central Circular Shinjuku Route in Tokyo |