Obayashi Corporation

    Obayashi Corporation history, profile and corporate video

       Obayashi Corporation is a construction company headquartered in Tokyo, Japan.

       Obayashi Store, the predecessor of Obayashi Corporation, was founded in 1892 by Yoshigoro Obayashi as a civil engineering and building construction contractor in Osaka.

       In 1904, Obayashi Store was renamed Obayashi-gumi.

       In 1909, Obayashi-gumi was established as a limited partnership company (the first construction company to incorporate in Japan)

       In 1918, the Obayashi Corporation (stock company) was founded.

       In 1919, Obayashi Corporation (limited partnership company) merged with Obayashi Corporation (stock company).

       In 1933, Toyo Hoso Kabushiki Kaisha (now Obayashi Road Corporation) was established.

       In 1955, Naniwa Real Estate Corporation (now Obayashi-Shinseiwa Real Estate Corporation) was established.

       In 1958, Obayashi Corporation was listed on the Osaka Securities Exchange.

       In 1960, Obayashi Corporation was listed on the Tokyo Stock Exchange.

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       In 1963, Establishes Toyo Building Service Corporation (now Obayashi Facilities Corporation).

       In 1978, James E. Roberts-Obayashi Corporation (a subsidiary of Obayashi USA, LLC) was established.

       In 1986, Oak System Corporation (now Oak Information System Co.) was established.

       In 1989, E.W. Howell Co., LLC joined the Obayashi Group.

       In 1993, OC Real Estate Management, LLC (USA) was established.

       In 2002, Obayashi USA, LLC (Los Angeles) was established.

       In 2003, Obayashi acquired all shares of Toshiba Air Conditioning Co., Ltd. from Toshiba Corporation and changed the company name to Oak Setsubi Corporation.

       In 2006, Obayashi Vietnam Corporation (Ho Chi Minh City) was established.

       In 2007, Webcor joined the Obayashi Group (USA).

       In 2011, Obayashi Canada Ltd. (USA) was established, and Kenaidan Group Ltd. (Canada) joined the Obayashi Group.

       In 2012, JS Builders, LLC (USA) was established.

       In January 2014, Obayashi Singapore Private Limited was established. January

       In October 2014, Obayashi Real Estate Corporation and Seiwa Real Estate Co., Ltd. merged, creating Obayashi-Shinseiwa Real Estate Corporation.

       In November 2014, Kraemer North America, LLC (USA) joined the Obayashi Group.


       Obayashi Corporation operates through the following business sectors: Building Construction, Civil Engineering, Real Estate, and New Businesses.

    Building Construction

       The Building Construction sector involves offices, condominiums, commercial facilities, factories, hospitals and schools.

    Civil Engineering

       The Civil Engineering sector includes tunnels, bridges, dams, riverbanks, railroads, and expressways.

    Real Estate

       The Real Estate sector develops leasing properties in prime locations, primarily in metropolitan areas.

    New Businesses

       The New Businesses sector promotes renewable energy (wind power and biomass, as well as solar power generation), PPP (PFI projects; facility maintenance and management), and agriculture businesses (harvesting of cherry tomatoes and starting plant factories that use artificial light).

       Obayashi has more than 100 subsidiaries and affiliated companies in Japan, North America, Asia, Middle East, Europe, and Oceania.


    • 1914 – Tokyo Central Station (currently Tokyo Station)
    • 1924 – Hanshin Koshien Stadium
    • 1931 – The Main Tower of Osaka Castle
    • 1956 – Nukabira Dam Power Generation Development
    • 1964 – Yoyogi National Stadium 2nd Gymnasium
    • 1965 – Musi River Bridge (Indonesia)
    • 1970 – Japan World Exposition (Theme Pavilion)
    • 1972 – Minato Bridge on Hanshin Expressway Route 5 Bayshore Line
    • 1982 – San Francisco Sewer (U.S.A.)
    • 1994 – Kansai International Airport: Creation of ­Airport Island and Passenger Terminal
    • 1996 – Canal City Hakata
    • 1997 – Kyoto Station Building
    • 1997 – Tokyo Bay Aqua-Line
    • 1997 – Singapore Airport Building (Singapore)
    • 1997 – Osaka Dome
    • 1998 – Shinagawa Intercity
    • 1998 – Akashi-Kaikyo Bridge
    • 1999 – Stadium Australia (Australia)
    • 1999 – Tomisato Dam
    • 2001 – The Metropolitan Area Outer Discharge ­Channel-Tunnel (First section tunnel)
    • 2002 – Oasis 21
    • 2006 – Taiwan High Speed Rail (Taiwan)
    • 2010 – Hoover Dam Bypass Project: Colorado River Bridge (U.S.A.)
    • 2011 – Dubai Metro Project (Dubai, U.A.E.)
    • 2012 – TOKYO SKYTREE®
    • 2013 – Grand Front Osaka
    • 2014 – Toranomon Hills
    • 2015 – Sagamihara Interchange Ramp Bridge, Sagami Longitudinal Expressway
    • 2015 – San Francisco General Hospital (U.S.A.)
    • 2016 – Onoyama Viaduct
    • 2017 – DUO (Singapore)
    • 2018 – Waterview Connection Tunnels and Great North Road Interchange (New Zealand)
    • 2019 – Jewel Changi Airport (Singapore)

       With more than 15,000 employees, Obayashi Corporation is considered one of the largest construction companies in Japan. According to Forbes, it is considered one of the Largest Public Companies in the World.

    *Information from,, and

    **Video published on YouTube by “大林組公式チャンネル“.



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