- 1982 June
- Establishment of Zensho Co., Ltd. Incorporated Head Office and Yokohama Plant in Tsurumi-ku, Yokohama City, Kanagawa.
- 1982 July
- Opened Namamugi Outlet in Tsurumi-ku, Yokohama City,Kanagawa, the first lunch box take-out shop.
- 1982 Nov
- Opened Namamugi Ekimae Outlet as the first in-building Sukiya restaurant (beef bowl restaurant).
- 1986 Aug
- Head Office moved to Kanagawa-ku, Yokohama City, and Yokohama Plant moved to Midori-ku (currently Tsuzuki-ku),Yokohama City, Kanagawa.
- 1987 Apr
- Head Office moved to Kanagawa-ku (Tsuruya-cho), Yokohama City, Kanagawa.
- 1987 July
- Opened Mito Outlet (in Mito City, Ibaraki) as the first freestanding type restaurant.
- 1989 Jan
- Head Office moved to Nishi-ku, Yokohama City, Kanagawa.
- 1990 Oct
- Established Sano Plant and Sano Distribution Center in Sano City,Tochigi, to improve central kitchen functions.
- 1991 Mar
- Opened a training center in Hodogaya-ku, Yokohama City,Kanagawa.
- 1993 Dec
- Opened Sano Second Plant in Sano City, Tochigi, to improve central kitchen functions.
- 1997 Aug
- Went public on the OTC market.
- 1999 Sep
- Listed on the Tokyo Stock Exchange Second Section.
- 2000 Mar
- Opened Osaka Plant in Suminoe-ku, Osaka City, Osaka, to improve central kitchen functions.
- 2000 July
- Acquired shares of Coco’s Japan Co., Ltd. for business expansion.
- 2000 Oct
- Established Techno Support Co., Ltd. to streamline furnishing and maintenance.
- 2000 Nov
- Established Global Foods, Ltd. to streamline foodstuffs procurement.
- 2001 May
- Acquired shares of Gyuan Co., Ltd. for business expansion.
- 2001 July
- Head Office moved to Minato-ku, Tokyo.
- 2001 Sep
- Listed on the Tokyo Stock Exchange First Section.
- 2002 June
- Established Global Table Supply Co., Ltd. to streamline supplies and equipment procurement.
- 2002 Dec
- Acquired shares of Wenco Japan Ltd. (currently Nihon Wendies,Ltd.) and of Yamato Foods Co., Ltd. for business expansion.
Also, Coco’s Japan Co., Ltd. (a Zensho consolidated subsidiary) acquired shares of Big Boy Japan, Inc.
- 2003 Dec
- Opened Minami Kanto Plant in Kawasaki-ku, Kawasaki City,Kanagawa to improve central kitchen functions.
- 2004 Feb
- Head Office moved to current location (2-18-1 Konan, Minato-ku,Tokyo) to consolidate the headquarters function.
- 2004 July
- Acquired shares of Hisamoto Co., Ltd. (currently GM Foods Co.,Ltd.) and Yokoyama Foods Co., Ltd. (currently Menn Kobo Co.,Ltd.) for business expansion.
- 2004 Dec
- Established Zensho America Corporation for business expansion.
- 2005 Mar
- Acquired shares of Nakau Co., Ltd. for business expansion.
- 2005 Sep
- Food Safety Pursuing Unit (currently Food Safety Pursuing Division) established to enhance the approach to food safety.
- 2006 Jan
- Global Wear Co., Ltd. established to streamline uniform procurement.
- 2006 Mar
- Acquired shares of Takarajima Co., Ltd. and El Torito Japan Co.,Ltd. established by their parent company Coco’s Japan Co., Ltd.(a Zensho consolidated subsidiary) for business expansion.
- 2006 Apr
- UD Foods Co., Ltd. (a Zensho consolidated subsidiary, now Sanbishi Co., Ltd.) took over the business rights of Sanbishi Co.,Ltd. for business expansion.
- 2006 May
- Catalina Restaurant Group Inc. made a group subsidiary through Zensho America Corporation (a Zensho consolidated subsidiary)for business expansion.
Also, Big Boy Japan Inc. shares acquired from Coco’s Japan Co.,Ltd. (a Zensho consolidated subsidiary) to streamline group governance and increase efficiency.
Central Research Center established to enhance the approach to food safety.
- 2006 June
- Global Pizza System Co., Ltd. (currently Tolona Japan Co., Ltd.) established for business expansion.
- 2006 Aug
- Global Fresh Supply Co., Ltd. established with the goal of streamlining logistics.
- 2006 Oct
- Hokkaido Plant established in Otaru City, Hokkaido to improve central kitchen functions.
Central Research Center& China Branch established to enhance the approach
to food safety.
- 2007 Feb
- United Vegies Co., Ltd., acquired for business expansion.
- 2007 Mar
- Shares of Sunday’s Sun Co., Ltd., acquired for business expansion.
- 2007 May
- Hamamatsu Plant established in aamatsu City, Shizuoka to improve central kitchen functions.
- 2007 July
- With the opening of the first Sukiya (beef bowl restaurant)in Okinawa, Sukiya establishes a presence in all 47 Japanese prefectures.
Also, Okinawa Plant established in Uruma City, Okinawa to improve central kitchen functions.
- 2007 Aug
- Imported Food Safety Assurance Department and Food Safety Information Department established to enhance the approach to food safety.
- 2007 Oct
- Kansai Plant established in Kasai City, Hyogo to improve central kitchen functions.
Also, Global Seafood, Ltd. established to streamline foodstuffs procurement.
- 2008 Feb
- Tosu Plant established in Tosu City, Saga to improve central kitchen functions.
- 2008 Apr
- Chicago Pizza Co., Ltd. established for business expansion.
- 2008 June
- Global IT Service Co., Ltd. established to streamline information system functions.
- 2008 Oct
- Acquired shares of Hanayayohei Co., Ltd. for business expansion.
- 2009 Sep
- Absorbed GM Foods Co.,Ltd.
- 2009 Dec
- Terminated Wendy's hamburger chain franchise contract with the Wendy's/Arby's Group Inc.
