Energy producer in the
Canton of Zurich

Elektrizitätsgenossenschaft Marthalen

Since 1912 · 11–20 empl.

Elektrizitätsgenossenschaft Marthalen is an independent cooperative that supplies electricity and distributes it through its own network. It serves the local community, maintains the electricity network and operates public lighting.

EGW Weiach Elektrizitätsgenossenschaft

Since 1912 · 1–10 empl.

EGW Weiach Elektrizitätsgenossenschaft supplies electricity to customers and members and operates the electricity distribution network in the municipality of Weiach. It publishes electricity tariffs and provides regulations and information about the supply service.

Transitgas AG

Since 1971 · 21–50 empl.

Transitgas AG constructs, owns, maintains and operates a natural gas transport system connecting Switzerland’s northern and southern borders. Its infrastructure includes pipelines, compressor and metering stations, and shut-off valve stations, and supports gas transport in both directions.

Swissgas-Speicher Aktiengesellschaft

Since 1980 · 11–20 empl.

The core activity of Swissgas AG is the operation and management of natural gas networks, including asset management, transport management and operation of KSDL (concession contracts for Swiss natural gas distribution).

Leutenegger Energie Control

Since 1990 · 1–10 empl.

Leutenegger Energie Control plans and builds solar photovoltaic and solar thermal systems and advises on renewable energy. It also develops measurement equipment for solar installations, including module-testing devices, battery monitoring systems and large displays.

Genossenschaft GENOSOL MARTELLA

Since 1992 · 1–10 empl.

The company's core activity is the promotion and operation of environmentally friendly energy systems, in particular the production and sale of renewable energy, such as photovoltaic power and biogas power, as well as the promotion of heat generation through collector systems.

Swissgas, Schweizerische Aktiengesellschaft für Erdgas

Since 1993 · 21–50 empl.

Swissgas, Schweizerische Aktiengesellschaft für Erdgas is a private joint‑stock company that serves as a service platform for regional network companies by operating the high‑pressure gas network and marketing transport capacity. It owns a high‑pressure pipeline network (260 km), manages intake and custody transfer stations, handles nominations and transport coordination (including the KSDL) and markets transit capacity. Its activities include asset management, operation, maintenance and monitoring of pipeline infrastructure and representation in industry forums.

Holzwärmegenossenschaft Rafz (HWG)

Since 1994 · 1–10 empl.

Holzwärmegenossenschaft Rafz (HWG) builds and operates a local district heating network powered by wood chips. It supplies heat to its cooperative members, using primarily wood chips from the forests of the Rafz municipality.

Wärme Lindau AG

Since 1996 · 1–10 empl.

Wärme Lindau AG operates the district heating network in Tagelswangen. It also provides heating-related services throughout the municipality of Lindau, including heating cost billing.

Heizgenossenschaft Knonau (HGK)

Since 1996 · 1–10 empl.

Heizgenossenschaft Knonau (HGK) operates a wood-chip heating plant and district heating network. It supplies private properties and public buildings with heat from regional wood; heat may be purchased by cooperative members.

Industrielle Betriebe Kloten AG

Since 1999 · 21–50 empl.

Industrielle Betriebe Kloten AG supplies customers with electricity, water and gas and operates the associated utility networks. It also provides services in the energy sector.

Rafzerfelder-Solar GmbH

Since 1999 · 1–10 empl.

The core activity of solarRafz Genossenschaft is the generation and sale of ecological solar power through the operation of photovoltaic systems, in particular on the Saalsporthalle and the Schalmenacker school building in Rafz.

OMPEX AG

Since 2006 · 11–20 empl.

OMPEX AG is an independent energy services provider serving energy suppliers and large industrial companies. Its services include consulting, energy trading and portfolio management, as well as market access and transaction processing for electricity, gas, CO₂ and guarantees of origin. It also provides a digital energy portal.

Bio Gas Lindau AG

Since 2006 · 1–10 empl.

Bio Gas Lindau AG operates a biogas plant that processes organic waste and manure. Anaerobic digestion produces biogas, which is converted into electricity and heat; the remaining digestate is used as fertiliser.

Erdgas Zürich Transport AG

Since 2007 · 11–20 empl.

Erdgas Zürich Transport AG operates a local gas transport network. It ensures the safe and reliable transport of the required gas volumes to connected customers.

Netzanstalt Zollikon

Since 2009 · 1–10 empl.

Netzanstalt Zollikon is the public organisation responsible for the strategic and operational management of the utility network entity. It sets regulations, tariffs and fees for connection and supply charges and also participates in Werke am Zürichsee.

Biogas Zürich AG

Since 2011 · 11–20 empl.

Biogas Zürich AG processes organic waste from households, businesses and industry, along with sewage gas, into biogas and fertiliser products. It upgrades biogas to natural-gas quality for injection into the gas grid and produces compost, soil blends and other horticultural products.

Heizverbund Kloster Kappel GmbH

Since 2013 · 1–10 empl.

Heizverbund Kloster Kappel GmbH operates a district heating network for the Kloster Kappel site. The network includes a wood-chip heating plant and a biogas facility and also supplies the municipal property at the Mühle.

Erdgas Zürich AG

Since 2013 · 11–20 empl.

Erdgas Zürich AG operates and maintains local natural-gas transport networks, ensuring the transport of requested gas volumes for connected customers in 100 municipalities. The company is a joint venture of Energie 360° AG and EnergiNova AG, with operational management provided by Energie 360° AG.

invotas AG

Since 2013 · 1–10 empl.

invotas AG develops and operates renewable energy and water treatment projects, covering activities from site acquisition and financing to construction and operations. It also offers solar contracting, support and advice throughout project phases, and international sourcing services.

Pensionskasse Gemeinde Männedorf

Since 2014 · 11–20 empl.

The company's core activity is the supply of energy and water, including the provision of electricity, water and wastewater services, as well as the promotion of electromobility and photovoltaics. The company also offers various services such as energy consulting, meter reading and emergency services.

cascad.e netz werk ag

Since 2016 · 1–10 empl.

cascad.e netz werk ag provides consulting to the energy industry and energy-intensive businesses. Its work covers analysis, strategy development and implementation across areas of energy supply, including electricity, gas, water and district heating.

WIN Energie AG

Since 2018 · 11–20 empl.

The core activity of GRAVAG Energie AG and GRAVAG Thermo is energy supply and consulting, particularly in the field of heat and energy solutions. This includes the planning, installation, maintenance and repair of heating systems, such as heat pumps, gas and oil heating systems, pellet heating systems, hybrid systems, electricity-generating heating systems and photovoltaic systems. Additionally, the company offers energy consulting, network and technical services, as well as the issuance of building energy certificates (GEAK).

Feierabend AG Wasserkraft + Verwaltung

Since 2018 · 1–10 empl.

Feierabend AG Wasserkraft + Verwaltung operates a hydroelectric power plant and rents out commercial premises, offices and studios. The company manages the Fabrik im Schiffli site and also maintains its own water supply and biological wastewater treatment facilities.

BioGem Express AG

Since 2020 · 11–20 empl.

BioGem Express AG sources and supplies biomethane and supports producers and customers across the supply chain. Its services include guarantees of origin and sustainability certificates, physical mass-balanced deliveries, and regulatory compliance support.

Energie am Bachtel AG

Since 2015 · 1–10 empl.

Genossenschaft Zukunft der Energie

Since 2017 · 1–10 empl.

The core activity of the company 'Genossenschaft Zukunft der Energie' is the distribution and installation of photovoltaic systems as well as the promotion of renewable energy. The company offers fair prices for photovoltaic modules and installation materials, enabling customers to build their systems under professional guidance or have them installed turnkey.

Wärmeverbund AG Flaach

Since 2015 · 1–10 empl.

Wärmeverbund AG Flaach operates a central heating plant and supplies customers through a district heating network using wood chips. The heat is used for space heating and hot water.

Genossenschaft Licht- und Kraftwerke Glattfelden

21–50 empl.·3.9(21)

Genossenschaft Licht- und Kraftwerke Glattfelden is a cooperative utility for electricity and telecommunications. It operates energy and data networks and provides electrical installations, inspection and advice, photovoltaic and electric-mobility services, as well as TV, internet and telephone services.

Energie Opfikon AG

Since 2002 · 21–50 empl.·3.4(22)

Energie Opfikon AG supplies customers with electricity and water and operates the infrastructure needed for these services, as well as public lighting. Its activities also include heating and cooling supplied using waste heat and renewable electricity, and related services.

Heizgenossenschaft Hausen a.A. (HGH)

Since 2020 · 1–10 empl.

Heizgenossenschaft Hausen a.A. (HGH) develops and operates a wood-energy district heating network. It generates heat using wood from the region, and heat may be purchased by cooperative members.

Juice Power AG

Since 2020 · 21–50 empl.·3.5(92)

Juice Power AG develops, manufactures and sells charging solutions for electric vehicles, including portable chargers, wallbox chargers and DC fast chargers, together with software and fleet services for billing and load management.

Biolüssi Wärmeverbund GmbH

Since 2010 · 1–10 empl.·5.0(6)

Biolüssi Wärmeverbund GmbH operates a district heating network with a central wood-chip heating plant. Heat is distributed through underground pipes to buildings for space heating and hot water.

Energie Grüningen AG

Since 2021 · 11–20 empl.

Energie Grüningen AG supplies electricity and operates the electricity network infrastructure. It serves the municipality of Grüningen and provides services related to grid connections, electrical installation inspections and customer enquiries about the electricity supply.

wasserradbau guidi gmbh

Since 2019 · 1–10 empl.

wasserradbau guidi gmbh plans, develops and builds water wheels for ecological electricity generation. It prepares individual projects for each site and uses generators to convert the wheels’ mechanical energy into electricity.

H2 ENERGY AG

Since 2014 · 21–50 empl.·5.0(1)

H2 ENERGY AG develops and implements hydrogen technologies and hydrogen ecosystems across the value chain. Its activities include engineering services and solutions for hydrogen production, storage and logistics, refuelling stations, and hydrogen-based applications.

Elektrizitätsgenossenschaft Otelfingen

Since 1908 · 11–20 empl.·3.4(5)

Elektrizitätsgenossenschaft Otelfingen supplies customers with electricity and operates an electricity distribution network. It provides power from renewable sources and offers green electricity products with different energy mixes.

HHKW Aubrugg AG

Since 2009 · 1–10 empl.·4.2(5)

HHKW Aubrugg AG operates a wood-fired combined heat and power plant using untreated wood chips. The plant generates electricity and supplies heat to a district heating network; the resulting ash is also reused, including in concrete production.