Japan Ground Water Development Co., Ltd.

Japan Ground Water Development Co., Ltd. (日本地下水開発株式会社) is a Japanese engineering and construction company headquartered in Yamagata City, Yamagata Prefecture. Founded on March 1, 1962, the company has built its business around the sustainable use of groundwater and subsurface resources. Its corporate philosophy emphasizes coexistence with nature, and its operations span snow-control engineering, resource development, environmental energy, geotechnical consulting, and disaster prevention. The company's core business lines include the design, construction, and maintenance of snow-melting systems (both waterless and water-sprinkling types) for cold, snowy regions; comprehensive consulting and development of hot spring and water sources; and the use of groundwater and geothermal heat for heating and cooling systems, including aquifer thermal energy storage. It also addresses soil and groundwater contamination, a legacy of 20th-century industrial activity, through investigation and remediation technologies. In addition, it conducts geological and geotechnical surveys, groundwater analysis, physical exploration, and environmental assessments, and provides disaster-prevention services such as landslide countermeasures and disaster wells. As of the fiscal year ending August 2025, the company reported net sales of 3,465.48 million yen. Its financial indicators show net sales of 4,065.01 million yen in FY2022, 4,180.17 million yen in FY2023, 3,491.79 million yen in FY2024, and 3,465.48 million yen in FY2025, with ordinary income declining from 259.59 million yen in FY2022 to 108.70 million yen in FY2025. The company maintains a capital of 80 million yen and is led by President and Representative Director Kiyohiko Katsuragi. It operates through a network of offices primarily in Yamagata Prefecture, including its headquarters, Shonai, Yamagata, Kitamurayama, and Okitama offices, as well as a western factory, and has an office in Aomori Prefecture. Its affiliated companies include Japan Environmental Science Co., Ltd. and Japan Water Resources Development Co., Ltd. The company is active in industry exhibitions and public engagement, participating in events such as the Yamagata Environmental Exhibition 2026, EE Tohoku '26, and the 2026 New Environmental Exhibition / Global Warming Prevention Exhibition. It positions itself as a contributor to regional revitalization and to Japan's 2050 carbon neutrality goal.

Japan Ground Water Development Co., Ltd. was established on March 1, 1962, in Yamagata City, Yamagata Prefecture, Japan. From its founding, the company adopted a corporate philosophy centered on respect for nature and the sustainable use of natural resources, stating that while nature cannot be conquered, its use can be unlimited. This ethos guided its early involvement in groundwater and geothermal resource development. Over the decades, the company expanded into several specialized engineering domains. In snow-control engineering (克雪事業), it developed waterless snow-melting systems to create comfortable pedestrian spaces during winter in cold, snowy regions. In resource development (資源開発事業), it became a comprehensive consultant for hot spring development and also undertook water source development. In environmental energy (環境エネルギー事業), it pursued groundwater and geothermal heat utilization for heating and cooling, including aquifer thermal energy storage, and developed technologies to address soil and groundwater contamination. It also established geotechnical consulting (地盤コンサルタント事業) for geological surveys, groundwater analysis, and environmental assessments, and a disaster prevention business (防災関連事業) covering landslide countermeasures and disaster wells. The company has been led by President and Representative Director Kiyohiko Katsuragi. It operates primarily in Yamagata Prefecture with its headquarters in Yamagata City and additional offices in Shonai, Yamagata, Kitamurayama, and Okitama, plus a western factory. It also has an office in Aomori Prefecture. Its affiliated companies include Japan Environmental Science Co., Ltd., which provides measurement certification and water quality testing, and Japan Water Resources Development Co., Ltd. In recent years, the company has aligned itself with broader environmental goals, including contributing to Japan's 2050 carbon neutrality target. It actively participates in environmental exhibitions and industry events, such as the Yamagata Environmental Exhibition, EE Tohoku, and the New Environmental Exhibition. Financial data shows fluctuating performance: net sales were 4,065.01 million yen in FY2022, 4,180.17 million yen in FY2023, 3,491.79 million yen in FY2024, and 3,465.48 million yen in FY2025, with ordinary income declining over the same period. The company remains a private entity with capital of 80 million yen.

• Company founded in Yamagata City, Yamagata Prefecture.

• Fiscal year net sales: 4,065.01 million yen; ordinary income: 259.59 million yen.

• Fiscal year net sales: 4,180.17 million yen; ordinary income: 229.15 million yen.

• Fiscal year net sales: 3,491.79 million yen; ordinary income: 124.30 million yen.

• Fiscal year net sales: 3,465.48 million yen; ordinary income: 108.70 million yen.

• Company president featured in Yamagata Shimbun for appointment as Japan Football Association director.

• Company featured in Yamagata Good Job Magazine 2026.

• Announced exhibition at 2026 New Environmental Exhibition / Global Warming Prevention Exhibition (May 20-22, 2026).

• Announced exhibition at EE Tohoku '26 (June 3-4, 2026).

• Announced exhibition at Yamagata Environmental Exhibition 2026 (Oct 17-18).

A regional engineering firm leveraging groundwater and geothermal technology for snow control, energy, and environmental remediation, committed to sustainability and carbon neutrality.

• Waterless snow-melting system

  A system to melt snow without water sprinkling, designed for comfortable pedestrian spaces in snowy regions.

• Water-sprinkling snow-melting system

  A snow-melting system using water sprinkling, designed, constructed, and maintained by the company.

• Hot spring development consulting

  Comprehensive consulting services for hot spring development.

• Water source development

  Development of water sources as part of resource development.

• Groundwater and geothermal heat pump systems

  Heating and cooling systems utilizing groundwater and geothermal heat.

• Aquifer thermal energy storage (ATES)

  Technology for storing thermal energy in aquifers for sustainable heating and cooling.

• Soil and groundwater contamination remediation

  Technologies and services to address soil and groundwater contamination.

• Geological and geotechnical surveys

  Surveys including groundwater analysis, physical exploration, and environmental assessments.

• Landslide countermeasures and disaster wells

  Design and construction of landslide countermeasures and disaster prevention wells.

1. 1日本地下水開発株式会社 公式サイトjgd.jp
2. 2企業情報｜日本地下水開発株式会社jgd.jp
3. 3Japan Ground Water Development Co., Ltd. (Japan) - Wikidatawikidata.org