1. 1 Management and Organization

Founder, Past Chairmen, Presidents, Vice Chairmen and Executive Vice Presidents

Yoshigoro Obayashi

Founder President

Yoshigoro Obayashi

1892.1-1916.1

Yoshio Obayashi

President

Yoshio Obayashi

1916.1-1943.10

Yoshiro Obayashi

President / Chairman

Yoshiro Obayashi

President/1943.11-1989.6
Chairman/1987.6-2003.6

Kamezo Shirasugi

Chairman / Counselor

Kamezo Shirasugi

Chairman/1943.11-1945.11
(Counselor/1941.6-1943.11, 1945.11-1975.8)

Takao Tsumuro

President

Takao Tsumuro

President/1989.6-1997.6
Vice Chairman/1997.6-1999.6

Shinji Mukasa

President

Shinji Mukasa

Executive Vice President/1993.6-1997.6
President/1997.6-2005.6

Norio Wakimura

President

Norio Wakimura

Executive Vice President/2001.6-2005.6
President/2005.6-2007.6

Toru Shiraishi

President

Toru Shiraishi

President/2007.6-2018.2

Tadashi Okada

Tadashi Okada

Executive Vice President/1977.6-1987.6
Vice Chairman/1987.6-1995.6
(Counselor/1995.6-1997.11)

Keizo Ishii

Keizo Ishii

Executive Vice President/1977.6-1987.6
Vice Chairman/1987.6-1993.6

Tsuneo Aki

Tsuneo Aki

Executive Vice President/1984.11-1989.6
Vice Chairman/1989.6-1995.6

Yoshio Shinohara

Yoshio Shinohara

Executive Vice President/1987.6-1995.6
Vice Chairman/1995.6-1997.6

Kenshiro Obayashi

Kenshiro Obayashi

Executive Vice President/1924.12-1935.3

Toranosuke Nakamura

Toranosuke Nakamura

Executive Vice President/1943.11-1953.11
(Counselor/1953.11-1965.8)

Makoto Tanabe

Makoto Tanabe

Executive Vice President/1958.11-1960.11

Yoshio Igarashi

Yoshio Igarashi

Executive Vice President/1960.11-1968.11

Tatsusuke Hamachi

Tatsusuke Hamachi

Executive Vice President/1960.11-1970.11

Toyoji Tokunaga

Toyoji Tokunaga

Executive Vice President/1960.11-1968.11

Sakuro Shimamichi

Sakuro Shimamichi

Executive Vice President/1968.11-1977.6

Masao Ishiwata

Masao Ishiwata

Executive Vice President/1970.11-1972.11

Hatsuo Arakawa

Hatsuo Arakawa

Executive Vice President/1970.11-1977.6

Shinzaburo Yamada

Shinzaburo Yamada

Executive Vice President/1970.11-1977.6

Yutaka Akano

Yutaka Akano

Executive Vice President/1972.11-1976.6

Naotake Taniguchi

Naotake Taniguchi

Executive Vice President/1977.6-1985.6

Tadakuma Inoue

Tadakuma Inoue

Executive Vice President/1977.6-1981.6

Tsutomu Adachi

Tsutomu Adachi

Executive Vice President/1977.6-1989.6

Kenjiro Yoshino

Kenjiro Yoshino

Executive Vice President/1983.6-1989.6

Noboru Ooka

Noboru Ooka

Executive Vice President/1985.6-1989.6

Yoshiyuki Katsuta

Yoshiyuki Katsuta

Executive Vice President/1989.6-1993.6

Toshitame Fujisaka

Toshitame Fujisaka

Executive Vice President/1989.6-1995.6

Kazuhiko Morichika

Kazuhiko Morichika

Executive Vice President/1989.6-1991.6

Kenichi Itsuji

Kenichi Itsuji

Executive Vice President/1991.6-1995.6

Koreaki Hagihara

Koreaki Hagihara

Executive Vice President/1993.6-1994.2

Kenichi Yamashita

Kenichi Yamashita

Executive Vice President/1995.6-2003.6

Masatoshi Inoue

Masatoshi Inoue

Executive Vice President/1995.6-2001.6

Toshiteru Arakawa

Toshiteru Arakawa

Executive Vice President/1995.6-2001.6

Ryuji Kudo

Ryuji Kudo

Executive Vice President/1995.6-1999.6

Tadashi Uehara

Tadashi Uehara

Executive Vice President/2001.6-2007.3

Eiji Noma

Eiji Noma

Executive Vice President/2003.6-2009.6

Yoshitaka Hara

Yoshitaka Hara

Executive Vice President/2005.6-2007.6

Yoshihisa Obayashi

Yoshihisa Obayashi

Executive Vice President/2007.4-2007.6

Masashi Honjo

Masashi Honjo

Executive Vice President/2007.6-2011.3

Shigeyoshi Cho

Shigeyoshi Cho

Executive Vice President/2007.6-2010.3

Tadahiko Noguchi

Tadahiko Noguchi

Executive Vice President/2010.4-2015.3

Makoto Kanai

Makoto Kanai

Executive Vice President/2011.4-2015.3

Shozo Harada

Shozo Harada

Executive Vice President/2012.4-2018.2

Nao Sugiyama

Nao Sugiyama

Executive Vice President/2015.4-2017.6

Kozaburo Tsuchiya

Kozaburo Tsuchiya

Executive Vice President/2015.4-2018.1

Shingo Ura

Shingo Ura

Executive Vice President/2017.6-2021.3

Isamu Kakeno

Isamu Kakeno

Executive Vice President/2019.1-2021.3
Yoshigoro Obayashi
PINCH OUT
Yoshio Obayashi
PINCH OUT
Yoshiro Obayashi
PINCH OUT
Kamezo Shirasugi
PINCH OUT
Takao Tsumuro
PINCH OUT
Shinji Mukasa
PINCH OUT
Norio Wakimura
PINCH OUT
Toru Shiraishi
PINCH OUT
Tadashi Okada
PINCH OUT
Keizo Ishii
PINCH OUT
Tsuneo Aki
PINCH OUT
Yoshio Shinohara
PINCH OUT
Kenshiro Obayashi
PINCH OUT
Toranosuke Nakamura
PINCH OUT
Makoto Tanabe
PINCH OUT
Yoshio Igarashi
PINCH OUT
Tatsusuke Hamachi
PINCH OUT
Toyoji Tokunaga
PINCH OUT
Sakuro Shimamichi
PINCH OUT
Masao Ishiwata
PINCH OUT
Hatsuo Arakawa
PINCH OUT
Shinzaburo Yamada
PINCH OUT
Yutaka Akano
PINCH OUT
Naotake Taniguchi
PINCH OUT
Tadakuma Inoue
PINCH OUT
Tsutomu Adachi
PINCH OUT
Kenjiro Yoshino
PINCH OUT
Noboru Ooka
PINCH OUT
Yoshiyuki Katsuta
PINCH OUT
Toshitame Fujisaka
PINCH OUT
Kazuhiko Morichika
PINCH OUT
Kenichi Itsuji
PINCH OUT
Koreaki Hagihara
PINCH OUT
Kenichi Yamashita
PINCH OUT
Masatoshi Inoue
PINCH OUT
Toshiteru Arakawa
PINCH OUT
Ryuji Kudo
PINCH OUT
Tadashi Uehara
PINCH OUT
Eiji Noma
PINCH OUT
Yoshitaka Hara
PINCH OUT
Yoshihisa Obayashi
PINCH OUT
Masashi Honjo
PINCH OUT
Shigeyoshi Cho
PINCH OUT
Tadahiko Noguchi
PINCH OUT
Makoto Kanai
PINCH OUT
Shozo Harada
PINCH OUT
Nao Sugiyama
PINCH OUT
Kozaburo Tsuchiya
PINCH OUT
Shingo Ura
PINCH OUT
Isamu Kakeno
PINCH OUT
  1. Management and
    Organization
    1. The Articles of Incorporation
      1. Current Articles of Incorporation (As of June 24, 2021) Enacted December 19, 1936
    2. Basic Principles
      1. Obayashi Basic Principles Set forth in March 2018
      2. Corporate Messages Created on January 25, 2011
    3. Transitioning of Corporate Symbol
      1. Transitioning to a New Corporate Symbol
    4. Corporate Officers
      1. Founder, Past Chairmen, Presidents, Vice Chairmen and Executive Vice Presidents
      2. Current Officers (As of June 24, 2021)
    5. Organization Chart
      1. Current Organization Chart (As of April 1, 2021)
  2. Stock Information
    1. Total Number of Shares Issued and Outstanding
    2. Status of Shareholding
    3. Major Shareholders
    4. Changes in Stock Price
  3. Financial Statements
    1. Scope of Consolidation
    2. Consolidated Data
  4. Technology
    1. Technology Development
    2. Foreign Patent
  5. BIM Timeline
    1. BIM Timeline外部リンク
  6. Awards
    1. Company Award for Excellent Projects
    2. President's Special Award
  7. Major Publication
    1. Corporate history, biography, etc.
    2. In-house magazines, operational guidelines, etc.
    3. PR magazines
  8. Group Companies
    1. Group Companies (in Japan)
      1. Major Group Companies (in Japan)
        1. OBAYASHI ROAD CORPORATION
        2. NAIGAI TECHNOS CORPORATION
        3. OBAYASHI FACILITIES CORPORATION
        4. OAK SETSUBI CORPORATION
        5. OBAYASHI-SHINSEIWA REAL ESTATE CORPORATION
        6. OAK INFORMATION SYSTEM CO.
      2. Other Group Companies (in Japan)
    2. Group Companies (Overseas)
      1. Major Group Companies (Overseas)
        1. THAI OBAYASHI CORPORATION LIMITED
        2. PT. JAYA OBAYASHI
        3. TAIWAN OBAYASHI CORPORATION
        4. OBAYASHI VIETNAM CORPORATION
        5. OBAYASHI SINGAPORE PRIVATE LTD.
        6. E.W. HOWELL CO., LLC
        7. OBAYASHI USA, LLC
        8. WEBCOR, LP
        9. KENAIDAN GROUP LTD.
        10. JAMES E. ROBERTS-OBAYASHI CORPORATION
        11. KRAEMER NORTH AMERICA, LLC
        12. JS BUILDERS, LLC
      2. Other Group Companies (Overseas)