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Yamada Eco Solution Co., Ltd.

A former Yamada Denki subsidiary that handled delivery and installation of home appliances, later expanding into eco-related solutions before going bankrupt in 2020.

Last updated September 27, 2026

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Overview

Yamada Eco Solution Co., Ltd. was a Japanese company originally established in August 1995 in Kudamatsu, Yamaguchi Prefecture. It began as a contractor for delivery and installation services for home appliances sold by Yamada Denki, a major Japanese electronics retailer. In October 1997, Climb, a company based in Shunan, Yamaguchi Prefecture, started undertaking delivery and installation work consigned by Yamada Denki. As orders from Yamada Denki expanded, the business was transferred from Climb to Yamada Eco Solution, which continued to provide delivery and installation services for Yamada Denki products, as well as customer satisfaction (CS) management, training, and consulting services for other companies. In March 2003, Yamada Denki acquired 70% of the company's shares, making it a consolidated subsidiary. In April 2009, the company changed its name from Climb Entertainment Co., Ltd. to Yamada Eco Solution Co., Ltd. At its peak in the fiscal year ending February 2008, sales reached 11.887 billion yen. However, after April 2009, Yamada Denki and other subcontractors began transactions without going through the company, leading to a decline in sales. The company then expanded into environmental fields such as solar power generation systems and EcoCute water heaters, as well as energy-saving all-electric remodeling solutions. Despite these efforts, sales continued to fall due to declining orders, intensifying competition, and a slowdown in store openings, while cash flow deteriorated. In April 2017, Yamada Denki sold all its shares in Yamada Eco Solution to Masato Okada, and the company left the Yamada Denki Group. This was compounded by the fact that RONI WORLD, where Okada was the de facto manager, suspended operations in October 2019 and delegated post-processing to lawyers, causing a sharp decline in the company's and the group's external credit. From November 2019, the company consolidated its operations to Yamada Denki-related business and consolidated its dual headquarters in Fukuoka and Chuo-ku, Tokyo, into a single headquarters in Chuo-ku, Tokyo. On February 21, 2020, a creditor filed for bankruptcy, and on September 11, 2020, the Tokyo District Court issued a bankruptcy commencement decision. Total liabilities amounted to 3.77108 billion yen.

History

Yamada Eco Solution Co., Ltd. was established on August 29, 1995, in Kudamatsu, Yamaguchi Prefecture. In October 1997, Climb, a company headquartered in Shunan, Yamaguchi Prefecture, began undertaking delivery and installation services consigned by Yamada Denki. As orders from Yamada Denki expanded, the business was transferred from Climb to the company, which then handled delivery and installation of products sold by Yamada Denki, as well as CS management, training, and consulting for other companies. In March 2003, Yamada Denki acquired 70% of the company's shares, making it a consolidated subsidiary. In April 2009, the company changed its name from Climb Entertainment Co., Ltd. to Yamada Eco Solution Co., Ltd. At its peak in the fiscal year ending February 2008, sales reached 11.887 billion yen. However, after April 2009, Yamada Denki and other subcontractors began transactions without going through the company, leading to a decline in sales. The company then expanded into environmental fields such as solar power generation systems and EcoCute water heaters, as well as energy-saving all-electric remodeling solutions. Despite these efforts, sales continued to fall due to declining orders, intensifying competition, and a slowdown in store openings, while cash flow deteriorated. In April 2017, Yamada Denki sold all its shares in Yamada Eco Solution to Masato Okada, and the company left the Yamada Denki Group. This was compounded by the fact that RONI WORLD, where Okada was the de facto manager, suspended operations in October 2019 and delegated post-processing to lawyers, causing a sharp decline in the company's and the group's external credit. From November 2019, the company consolidated its operations to Yamada Denki-related business and consolidated its dual headquarters in Fukuoka and Chuo-ku, Tokyo, into a single headquarters in Chuo-ku, Tokyo. On February 21, 2020, a creditor filed for bankruptcy, and on September 11, 2020, the Tokyo District Court issued a bankruptcy commencement decision. Total liabilities amounted to 3.77108 billion yen.

  • Established in Kudamatsu, Yamaguchi Prefecture.

  • Climb begins delivery and installation services consigned by Yamada Denki.

  • Yamada Denki acquires 70% of shares, making it a consolidated subsidiary.

  • Company name changed from Climb Entertainment Co., Ltd. to Yamada Eco Solution Co., Ltd.

  • Yamada Denki sells all shares to Masato Okada; company leaves Yamada Denki Group.

  • Creditor files for bankruptcy.

  • Tokyo District Court issues bankruptcy commencement decision.

Products and positioning

A logistics and installation service provider for Yamada Denki, later offering eco-friendly home solutions.

  • Delivery and installation services for home appliances

    Services for products sold by Yamada Denki.

  • Solar power generation systems

    Sales and installation of solar power systems.

  • EcoCute water heaters

    Sales and installation of EcoCute heat pump water heaters.

  • Energy-saving all-electric remodeling solutions

    Customized solutions for energy-saving all-electric remodeling.

Sources3 sources

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