Energy Suppliers in the
Canton of Thurgau
88 companies in Energy Suppliers based in the Canton of Thurgau — name and year of registration from the commercial register.
50 of 88 companies
EW Sirnach AG
Since 2002 · 21–50 empl.4.8(16)
EW Sirnach AG is a utility and service provider operating electricity, water and communication networks and offering related services. The company advises, plans, builds, installs and maintains infrastructure and provides building-technology services such as electrical installations, photovoltaic systems, building automation, e‑charging stations, network construction, ICT and energy consulting.
Technische Betriebe Weinfelden AG
Since 2001 · 21–50 empl.4.1(32)
The core activity of the company "Technische Betriebe Weinfelden AG" is to supply the municipality of Weinfelden with various services and products, in particular: * Electricity supply (including photovoltaics and smart meters) * Gas supply (including heating with gas, biogas and maintenance subscriptions) * Water supply (including drinking water and water quality) * Fiber optic supply (including fiber optic connection and basic TV offer) * Heat supply (including district heating for Weinfelden) * Energy consulting and services (including customer portal and billing) The company has a performance mandate to supply the municipality of Weinfelden with these services and products.
Regiotherm AG
Since 2001 · 11–20 empl.4.3(15)
The company is an energy supplier specializing in the provision of natural gas, biogas, and seawater heat. The core activities include gas procurement and distribution, network construction, maintenance and operation, as well as the provision of services such as heating service, heating repair, and safety checks. In addition, the company also offers products such as instantaneous water heaters and gas stoves.
EKT AG
Since 1912 · 101–500 empl.5.0(4)
EKT AG operates electricity distribution networks and provides engineering, construction and operational services for network planning and grid management. The company also develops and operates renewable energy installations and energy contracting solutions for buildings, and offers digital services such as a fibre-optic network and a datacenter.
Bioenergie Frauenfeld AG
Since 2021 · 11–20 empl.4.2(11)
Bioenergie Frauenfeld AG operates a wood-fired power plant that converts regional residual wood via pyrolysis into biochar, heat and electricity. The facility feeds the produced renewable electricity into the grid, supplies waste heat to the Schweizer Zucker factory and the Thurplus district heating network, and markets the produced biochar for agricultural and horticultural uses.
Genossenschaft EW Münchwilen (EWM)
Since 1905 · 11–20 empl.
The core activity of EW Münchwilen is the supply and networking of customers with electricity, water and communication. The company owns and operates the necessary facilities for the distribution of these services and offers additional services such as energy consulting, moving notifications and meter reading notifications.
Elektrizitätsgenossenschaft Gehrau-Häusern
Since 1911 · 1–10 empl.
The core activity of the company "Elektrizitäts-Genossenschaft Gehrau-Häusern" is the supply of households and businesses with electricity within its supply area, as well as the provision of fiber optic connections for digital services such as television, radio, internet and telecommunications.
Elektrizitätsgenossenschaft Brüschwil-Sonnenberg
Since 1913 · 1–10 empl.
Elektrizitätsgenossenschaft Brüschwil-Sonnenberg operates local electricity supply and network management. It is responsible for providing electricity to the hamlets Brüschwil, Sonnenberg, Chatzerüti and Chappehuse and publishes tariffs and customer information.
Elektra Steinebrunn
Since 1913 · 1–10 empl.
The core activity of Elektra Steinebrunn is the supply of customers with electrical energy, particularly through the use of hydroelectric power, wind power and solar energy.
Genossenschaft Elektrizitäts- und Wasserwerk Dozwil
Since 1960 · 1–10 empl.
The company's core activity is the supply of electricity and drinking water to the municipality of Dozwil. The company is organized as a cooperative, Elektrizitäts- und Wasserwerk Dozwil (EWD), and provides services such as electricity and water supply, meter reading, and maintenance of the corresponding infrastructure.
Genossenschaft EW Romanshorn
Since 2003 · 21–50 empl.
The core activity of EWR is the supply of electricity and water to private individuals, properties and municipalities. This includes the provision of electricity products, electricity tariffs, photovoltaic solutions, regional water, water tariffs, water quality control and supply. In addition, the company offers services such as fibre-optic and dark fibre connections, maintenance of transformer stations, public lighting and ARA fees.
Energy Financing Team (Switzerland) AG
Since 2003 · 101–500 empl.
The core activity of EFT Group is energy trading and investment, particularly in the field of electricity generation and trading in Central and Southeastern Europe. The company trades electricity on various markets, including forward, day-ahead and intra-day markets, and invests in the development of renewable energy sources.
esolva ag
Since 2005 · 51–100 empl.
esolva ag is a service provider for the energy and industrial sector. Its services include engineering, meter management, metering- and energy-data management, billing and customer-centre functions, as well as electrical safety, ICT and finance services, delivered via full-service and ASP/SaaS models.
EKT Energie AG
Since 2007 · 11–20 empl.
The core activity of EKT Energie AG is the strategic procurement and management of electricity for its customers. This includes in particular: Strategic electricity procurement: Procurement of electricity at optimal times to eliminate cluster risk; Portfolio management: Flexible procurement and marketing of electricity in the spot and balancing energy market, based on the individual needs of customers; Ecology/HKN: Support in designing sustainable electricity mixes and meeting ecological requirements. The company thus offers services in the field of energy procurement and marketing, with a focus on flexibility, sustainability and risk management.
Genossenschaft Werk Bichelsee-Balterswil
Since 2010 · 1–10 empl.
The company Werk Bichelsee-Balterswil is a utility company whose core activity consists of providing three main services: 1. **Water Supply**: The company supplies drinking water to the municipality and is responsible for the quality and hardness of the water. 2. **Electricity Supply**: It supplies households, commerce, and industry with electricity and is responsible for ensuring the electricity supply. 3. **Fiber Optic Network**: The company operates a fiber optic network, providing fast and reliable internet connectivity. Additionally, the company offers emergency services and maintenance for its technical facilities.
Genossenschaft Solar Regio Weinfelden
Since 2010 · 1–10 empl.
The core activity of the company 'Solar Regio Weinfelden' is the promotion and implementation of projects for the generation of renewable energy, in particular through the installation and operation of solar power systems on larger buildings such as sports halls, school buildings, industrial halls and agricultural buildings, as well as the supplementation with wind power plants.
Energie Horn AG
Since 2010 · 1–10 empl.
The core activity of Energie Horn AG is the generation and supply of district heating, in particular through the operation of a wood chip-fired district heating network, with the aim of reducing CO2 emissions and providing a sustainable energy supply.
esolva ag, Zweigniederlassung Arbon
Since 2013 · 11–20 empl.
esolva ag, Zweigniederlassung Arbon provides services for the energy and industrial sectors, including engineering, meter management, metering-data and energy-data management, electrical safety, billing and customer-centre services, and ICT support.
Genossenschaft Elektra Hatswil
Since 1909 · 1–10 empl.
Genossenschaft Elektra Hatswil is an electricity supply cooperative that provides power delivery and related services for its supply area. The cooperative publishes tariff information, feed-in remuneration rates and annual accounts on its website.
Arbon Energie AG
Since 2001 · 21–50 empl.3.2(9)
The core activity of Arbon Energie encompasses the supply of electricity, water, district heating, and telecommunications. Specifically, the company offers: * Electricity supply through the operation of its own distribution network and cooperation with the electricity producer SN Energie AG * Water supply through its own lake water treatment plant for Lake Constance drinking water * District heating supply through its own heat network * Telecommunications services through its own fibre-optic network, including internet, telephony, mobile and television services The company is thus a regional utility provider offering a wide range of energy and communication services.
Genossenschaft Elektra Roggwil-Freidorf
Since 2019 · 1–10 empl.
The core activity of Elektra Roggwil Freidorf is the supply of households and companies with electricity as well as the maintenance and upkeep of the power grid. The company offers various electricity tariffs, advises customers on electricity problems and provides services such as the electricity calculator and electricity-saving tips.
Kilowatt24 AG
Since 2021 · 11–20 empl.5.0(3)
The core activity of GENNO (Kilowatt24 AG) is the development, manufacture and distribution of emergency power solutions, particularly generators and power units, as well as the provision of services such as maintenance, service and consulting in the field of emergency power supply.
Elektra Kesswil
Since 1911 · 1–10 empl.3.4(5)
The core activity of the company is the management and administration of the political municipality of Kesswil, including the provision of services and information to citizens as well as the management of municipal affairs.
Technische Gemeindebetriebe Bischofszell
Since 2020 · 21–50 empl.3.5(8)
Technische Gemeindebetriebe Bischofszell is a municipal utility provider for electricity, water, district heating, and wastewater services, operating the related networks and facilities. It also provides services for energy utilities, public works departments, cooperatives, and municipalities.
eSpectrum AG
Since 2022 · 11–20 empl.
eSpectrum AG supplies battery energy storage systems and an energy management system (eEMS) to optimize self‑consumption and coordinate generation, storage and loads within site networks. The company also provides analysis, project management, and service & maintenance for industrial, commercial and e‑mobility applications.
LST Energie AG
Since 2022 · 11–20 empl.
The core activity of LST Energie AG is to supply the population of the three municipalities of Lommis, Stettfurt and Thundorf with safe and affordable energy, particularly electricity.
wattss AG
Since 2024 · 11–20 empl.
wattss AG designs, plans and installs modular battery storage systems and energy management solutions for commercial and industrial customers. Its portfolio includes Pixii‑based systems and product platforms such as PowerShaper and PowerBase, complemented by services from feasibility studies and financing to commissioning and after‑sales support. Common applications include peak shaving, PV+storage, backup power, EV charging and load management.
Elektra-Genossenschaft Sommeri
Since 1911 · 11–20 empl.4.0(1)
The core activity of the company is the public administration and service for the municipality of Sommeri, including the supply of water and electricity, waste management, building administration, resident services, civil registry office, tax office, social services and other municipal tasks.
BIMA Energie AG
Since 2015 · 11–20 empl.3.2(13)
The core activity of BIMA Energie AG is the production and sale of biogas, as well as the disposal and operation of a biogas plant in Münchwilen TG.
Elektra Horn AG
Since 2013 · 1–10 empl.5.0(1)
The core activity of Elektra Horn AG is the supply of electricity, including planning, construction and maintenance of the network, as well as electricity delivery, particularly for the municipality of Horn.
Elektra-Genossenschaft Homburg
Since 1978 · 1–10 empl.3.7(3)
The core activity of EG Homburg is the supply of electricity to the municipality of Homburg, including the operation and maintenance of the power grid.
Regio Energie Amriswil (REA)
Since 2015 · 21–50 empl.2.6(10)
The company's core activity is the provision of services in the energy, water, gas and telecommunications sectors, including the supply of electricity, water and gas, the installation and maintenance of charging stations for electric vehicles, the provision of communication services such as internet, telephone and television, as well as consulting and management of energy and water facilities.
Geothermie Thurgau AG
Since 2024 · 1–10 empl.
Geothermie Thurgau AG conducts geological prospecting and data collection as part of the TEnU 2030 project to generate baseline information for deep geothermal use. It compiles and publishes subsurface data (deeper than 400 m) to support evaluation of potential for heat and power production, deep groundwater, heat storage, reservoirs and CO2 sequestration.
Thurgie AG
Since 2000 · 1–10 empl.2.0(1)
The core activity of Thurgie AG is energy supply and consulting, particularly in the field of electricity products and services, including solar power, energy consulting, electromobility and smart meter services.
Wärme Bischofszell-Sittertal AG
Since 2022 · 11–20 empl.3.5(8)
Wärme Bischofszell-Sittertal AG develops and operates a district heating system that extracts heat from the wastewater treatment plant using a heat pump and distributes it via a district heating network. The project is implemented in cooperation with Technische Gemeindebetriebe Bischofszell and EKT AG and includes a heating plant with thermal storage and a supplementary gas boiler for peak loads.
AVIA VOLT Suisse AG
Since 2023 · 11–20 empl.3.0(2)
The core activity of AVIA VOLT is the planning, installation and maintenance of charging infrastructure for electric vehicles, in particular fast charging stations and large battery storage systems, as well as the provision of services and products in the field of electromobility.
Holz-Pelletheizungen Holzbock
Since 2025 · 1–10 empl.
Holz-Pelletheizungen Holzbock offers ATMOS wood gasification boilers, pellet boilers and combination boilers through its website, together with matching heating accessories. The product range also includes controls, buffer tanks, conveying systems and other components for wood and pellet heating systems.
Energie Münchwilen AG
Since 2013 · 1–10 empl.2.0(4)
The core activity of Energie Münchwilen AG is the generation and distribution of heat energy through the operation of district heating systems, particularly in the regions of Münchwilen, Murgtal and Eschlikon. The company operates heating plants fired with wet wood chips and has a network of heat distribution systems to deliver the generated heat to customers.
K51 Asset Safe Imhofbio
Since 2025 · 1–10 empl.
K51 Asset Safe Imhofbio combines high performance computing with the use of waste heat to provide fossil-free heat. The company offers solutions for greenhouse, hotel and industrial applications as well as HPC cloud services.
K51 Asset Safe Meier Gemüse
Since 2025 · 1–10 empl.
K51 Asset Safe Meier Gemüse develops and operates high performance computing (HPC) solutions designed to use computing capacity for generating fossil-free heat. The company combines computing, renewable energy and heat recovery for applications such as greenhouses, hotels and industrial facilities.
Genossenschaft Energie Fischingen
Since 2021 · 1–10 empl.3.0(1)
The company is an energy and communications service provider offering electricity, water, and fiber-optic internet services. The core activities include providing energy and water supply, managing electricity and water tariffs, promoting energy efficiency, and providing fiber-optic internet services.
Wymaro GmbH
Since 2007 · 1–10 empl.
The core activity of Pangas Gas & More is the marketing and distribution of gases and related products as well as services in the areas of gas supply, welding technology, barbecue equipment and camping gear.
Megawatt Energie AG
Since 2023 · 1–10 empl.
The core activity of Megawatt Energie AG is to provide emergency power solutions and energy supply for companies and organizations. This includes the maintenance, repair and maintenance of power generators, the provision of energy subscriptions that guarantee long-term security of supply, as well as consulting and support in determining energy needs. The company also offers a comprehensive package that includes all necessary services and costs, including taxes, basic insurance and maintenance costs.
Egnacher Elektra Genossenschaft
Since 1915 · 1–10 empl.
The core activity of the company 'Genossenschaft Elektra Neukirch-Egnach' is the supply and distribution of electricity, including the provision of electricity products, e-charging stations, backup power supply and electricity labeling, as well as the performance of house installation checks and the processing of connection requests.
STROMWERKER AG
Since 2019 · 1–10 empl.
The core activity of STROMWERKER AG is the provision and distribution of green energy.
Elektra St. Pelagiberg
Since 1959 · 1–10 empl.
Veer Energy Europe AG
Since 1979 · 1–10 empl.
Genossenschaft Elektra Vogelsang
Since 1983 · 1–10 empl.
Genossenschaft der Holzschnitzelfeuerung Eschikofen
Since 1994 · 1–10 empl.
Heizgenossenschaft Affeltrangen
Since 1994 · 1–10 empl.
Energy Suppliers in the Canton of Thurgau
Energy Suppliers in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 11, 2026
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