Shintokyo Group Co., Ltd.
A Japanese holding company in Matsudo, Chiba, providing environmental solutions and waste management consulting.
Last updated September 27, 2026
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Overview
Shintokyo Group Co., Ltd. (株式会社新東京グループ) is a Japanese holding company headquartered in Matsudo, Chiba Prefecture. It operates as a comprehensive producer of environmental solution businesses and provides consulting services related to waste treatment. The company was established in June 2012 through a share transfer to create a holding company structure, and its group companies include Shintokyo Development Co., Ltd., Ecologist Co., Ltd., Shintokyo Trading, and Shintokyo Energy. The representative director is Katsuhide Yoshino. The group's origins trace back to July 1992, when Shintokyo Development Co., Ltd. was founded in Matsudo, Chiba, for the purpose of industrial waste collection and transportation. Over the following decades, the group expanded into real estate management, intermediate waste treatment, material recycling, and new energy. In September 2012, Shintokyo Group listed on the Tokyo Stock Exchange's TOKYO PRO Market, but it delisted in September 2021. Shintokyo Group's business spans industrial waste collection and transportation, intermediate treatment, recycling, real estate management, and renewable energy. It has also engaged in disaster recovery support, including work related to the Great East Japan Earthquake and the 2018 heavy rain disaster. The group operates multiple facilities, including a transshipment and storage facility in Koto, Tokyo, and a metal material factory. It has also acted as a rehabilitation sponsor for companies undergoing civil rehabilitation proceedings. As a holding company, Shintokyo Group coordinates its subsidiaries' environmental and waste management operations. Its official website moved to https://shintokyogroup.co.jp/ from the previous address at http://www.mr-shintokyo.co.jp/.
History
The history of Shintokyo Group begins in July 1992, when Shintokyo Development Co., Ltd. was established in Matsudo, Chiba Prefecture, for the purpose of industrial waste collection and transportation. In December 2006, Shintokyo Agent Co., Ltd. was established through a company split to separate the real estate management division. In August 2009, Ecologist Co., Ltd. was founded to operate an intermediate industrial waste treatment facility. In June 2012, Shintokyo Group Co., Ltd. was established through a share transfer to create a holding company. On September 25, 2012, the company listed its shares on the Tokyo Stock Exchange's TOKYO PRO Market. In April 2013, it announced the acquisition of Yokoyama Co., Ltd. as a subsidiary to engage in material recycling. In May 2013, it conducted a Great East Japan Earthquake reconstruction support project jointly with major general contractors. In April 2015, it decided to establish Shintokyo Energy Co., Ltd. for new energy business purposes. In January 2017, Yokoyama Co., Ltd. changed its name to Shintokyo Trading Co., Ltd. In February 2017, a transshipment and storage facility opened in Koto, Tokyo. In March 2017, the company signed a sponsorship contract with the Chiba Lotte Marines and placed a company name advertisement on the outfield left-center fence of ZOZO Marine Stadium. In May 2017, it achieved a record ordinary profit of 296 million yen. In December 2017, the Metal Material Factory, its third factory, opened. In August 2018, the company donated relief money for the 2018 heavy rain disaster. In April 2019, it acquired a sludge recycling facility in Shiroi, Chiba, from Enbio Holdings, and became the rehabilitation sponsor of Green Systems Co., Ltd., which had applied for civil rehabilitation proceedings. In June 2019, it became the rehabilitation sponsor of Zen Kensetsu Kyodo Jigyo Kumiai, which had applied for civil rehabilitation proceedings. In November 2019, Shintokyo Growth Capital Co., Ltd. was established for the purpose of owning and managing environmental facilities. In September 2021, the company was delisted from the TOKYO PRO Market.
- 2021
Delisted from TOKYO PRO Market.
- 2019
Acquired sludge recycling facility in Shiroi, Chiba from Enbio Holdings; became rehabilitation sponsor of Green Systems Co., Ltd.
- 2019
Became rehabilitation sponsor of Zen Kensetsu Kyodo Jigyo Kumiai.
- 2019
Established Shintokyo Growth Capital Co., Ltd. for owning and managing environmental facilities.
- 2018
Donated relief money for 2018 heavy rain disaster.
- 2017
Yokoyama Co., Ltd. renamed to Shintokyo Trading Co., Ltd.
- 2017
Opened transshipment and storage facility in Koto, Tokyo.
- 2017
Signed sponsorship contract with Chiba Lotte Marines; placed advertisement at ZOZO Marine Stadium.
- 2017
Achieved record ordinary profit of 296 million yen.
- 2017
Opened Metal Material Factory, the third factory.
Products and positioning
Comprehensive producer of environmental solutions and waste management consulting
Product categories. Environmental solutions consulting · Industrial waste collection and transportation · Intermediate waste treatment · Material recycling · Real estate management · Renewable energy
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