Energy technology in
St. Gallen

Fortimo Solutions AG

Since 2019 · 21–50 empl.·4.2(102)

Fortimo Solutions AG develops, owns and operates real estate with a focus on residential properties and hospitality. The company delivers rental and owner‑occupied apartments, develops tourism projects (Revier hotels and Privà lodges) and provides investment, portfolio holding and property management across the full value chain.

Arnold AG

Since 2015 · 51–100 empl.·4.3(12)

Arnold AG is part of the Infra Services group within BKW and provides network construction services in the areas of energy, telecom, transport, and water. The company delivers comprehensive end-to-end network services across Switzerland.

Bion Bauhaus AG

Since 1994 · 11–20 empl.

Bion Bauhaus AG is Heim AG Heizsysteme. Heim AG Heizsysteme acquired Bion Bauhaus AG on 1 July 2023 and handles enquiries and services through its heating-systems business, which provides renewable-energy heating solutions such as heat pumps, wood-energy systems, solar systems and energy-management solutions.

Entegra Wasserkraft AG

Since 1999 · 11–20 empl.

The core activity of Entegra Wasserkraft AG is the planning, implementation (new construction and renovation) and operation of hydroelectric power plants, particularly in the field of small-scale hydroelectric power. This encompasses three main areas: 1. Planning and construction of hydroelectric power plants, 2. Commercial and operational management of hydroelectric power plants, and 3. Renovation of hydroelectric power plants in accordance with the Water Protection Act (GSchG). The company is also active in decentralized production of renewable energy and operates its own power plants.

Glattstrom Buchholz AG

Since 2004 · 1–10 empl.

Glattstrom Buchholz AG is a company active in hydropower. It plans, builds and operates hydropower plants, manages its own small hydropower plants, and provides operations management and rehabilitation projects under water protection legislation.

SN Erneuerbare Energie AG

Since 2012 · 11–20 empl.

The core activity of SN Energie AG is the production, trading and distribution of electricity, including the supply of energy supply companies (EVU) and traders with electricity and heat power network (HKN). This also includes services such as portfolio optimization, asset and participation management, as well as the provision of solutions for balancing energy, quantity tolerance and the documentation of the ecological footprint.

Wasserstoffproduktion Ostschweiz AG

Since 2019 · 51–100 empl.

The core activity of Wasserstoffproduktion Ostschweiz AG is the production of hydrogen as a future energy carrier for mobility, particularly for the operation of hydrogen-powered vehicles. The company makes the produced hydrogen available at AVIA hydrogen filling stations to offer a sustainable alternative to fossil fuels.

Isento Wasserkraft AG

Since 1990 · 1–10 empl.

Vento Verde AG

Since 2011 · 1–10 empl.

Wärme Netz Ostschweiz Holding AG

Since 2024 · 1–10 empl.