Top 10 Energy Companies in Switzerland 2025

We’re tracking 3,847 Energy companies in Switzerland.

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Companies	Employees	HQ location	Revenue	Founded	Estimated Traffic	Industries
Sulzer	View 7,469 employees	🇨🇭 Zurich, Winterthur+12	$ >1000M	1834	655,931	Industrial, Manufacturing
Alpiq	View 2,084 employees	🇨🇭 Vaud, Lausanne+30	$ >1000M	2009	83,054	Energy, Energy Management
Hitachi Energy	View 26,999 employees	🇨🇭 Zurich+2	$ 500-1000M	2004	2,822,757	Energy, Energy Management
Axpo	View 3,100 employees	🇨🇭 Aargau, Baden+56	$ 500-1000M	1914	311,997	Energy, Oil and Gas
Lyris Technologies	View 4,456 employees	🇨🇭 ZUG, Cham+34	$ 500-1000M	1896	198,375	Information Technology, Software
Ekz	View 481 employees	🇨🇭 Zurich+4	$ 500-1000M	1908	600,615	Energy, Energy Management
Ckw	View 591 employees	🇨🇭 Lucerne, Luzern+4	$ 500-1000M	1894	381,392	Energy, Electrical Distribution
Romande Energie	View 777 employees	🇨🇭 Vaud, Morges+13	$ 500-1000M	1997	393,046	Energy, Energy Efficiency
Ewz	View 678 employees	🇨🇭 Zurich+11	$ 500-1000M	1892	283,050	Energy, Energy Efficiency
Groupe E	View 1,050 employees	🇨🇭 Fribourg, Granges-paccot+27	$ 500-1000M	1907	239,699	Consulting, Energy
Sulzer	View 7,469 employees	🇨🇭 Zurich, Winterthur+12	$ >1000M	1834	655,931	Industrial, Manufacturing
Alpiq	View 2,084 employees	🇨🇭 Vaud, Lausanne+30	$ >1000M	2009	83,054	Energy, Energy Management
Hitachi Energy	View 26,999 employees	🇨🇭 Zurich+2	$ 500-1000M	2004	2,822,757	Energy, Energy Management
Axpo	View 3,100 employees	🇨🇭 Aargau, Baden+56	$ 500-1000M	1914	311,997	Energy, Oil and Gas
Lyris Technologies	View 4,456 employees	🇨🇭 ZUG, Cham+34	$ 500-1000M	1896	198,375	Information Technology, Software
Ekz	View 481 employees	🇨🇭 Zurich+4	$ 500-1000M	1908	600,615	Energy, Energy Management
Ckw	View 591 employees	🇨🇭 Lucerne, Luzern+4	$ 500-1000M	1894	381,392	Energy, Electrical Distribution
Romande Energie	View 777 employees	🇨🇭 Vaud, Morges+13	$ 500-1000M	1997	393,046	Energy, Energy Efficiency
Ewz	View 678 employees	🇨🇭 Zurich+11	$ 500-1000M	1892	283,050	Energy, Energy Efficiency
Groupe E	View 1,050 employees	🇨🇭 Fribourg, Granges-paccot+27	$ 500-1000M	1907	239,699	Consulting, Energy

1. Sulzer

Sulzer, headquartered in Winterthur, Switzerland, is a prominent player in the global energy sector, specializing in fluid engineering. The company offers cutting-edge pumping solutions, maintenance, and repair services that cater primarily to high-demand sectors such as power generation, oil and gas, and water treatment. Sulzer’s expertise in providing reliable and efficient technologies makes it a key enabler in Switzerland’s energy landscape, helping businesses enhance their operational performance and sustainability in an increasingly eco-conscious market.

Location 🇨🇭 Zurich, Winterthur	Size View 7,469 employees
Revenue $ >1000M	Industries Manufacturing, Science and Engineering, Energy, Natural Resources
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2. Alpiq

Alpiq, headquartered in Switzerland, is a prominent player in the European energy sector. The company specializes in electricity generation and marketing, with a strong emphasis on sustainable and renewable energy sources, including hydroelectric power. Alpiq operates extensively in its home country, contributing significantly to the energy supply and supporting Switzerland’s commitment to maintain a low-carbon economy. Their strategic focus includes not only power production but also innovative energy services catered to the evolving needs of both private and industrial customers in the region.

Location 🇨🇭 Vaud, Lausanne	Size View 2,084 employees
Revenue $ >1000M	Industries Energy, Sustainability
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3. Hitachi Energy

Hitachi Energy, located in Switzerland, is at the forefront of pioneering energy technologies and services. This company focuses on delivering comprehensive solutions for the transmission, distribution, and management of electricity. With a strong emphasis on innovation around digital automation technologies, Hitachi Energy is committed to driving progress toward a sustainable energy future. Their extensive portfolio includes products and services that enhance the efficiency and reliability of electrical systems across Switzerland’s energy landscape, supporting the country’s energy transformation goals.

Location 🇨🇭 Zurich	Size View 26,999 employees
Revenue $ 500-1000M	Industries Energy, Sustainability, Natural Resources
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4. Axpo

Headquartered in Switzerland, Axpo is a premier energy company adept in the production and distribution of renewable energy sources across CH. With a primary investment in wind, solar, and hydroelectric power, Axpo plays a pivotal role in promoting sustainable energy solutions. The company also leverages its vast infrastructure for trading natural resources, helping businesses across Europe manage their energy needs more efficiently. Axpo is instrumental in leading the transition towards a greener energy landscape, aligning with the global goals of environmental sustainability.

Location 🇨🇭 Aargau, Baden	Size View 3,100 employees
Revenue $ 500-1000M	Industries Energy, Natural Resources, Sustainability
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5. Lyris Technologies

Lyris Technologies, located in Switzerland, stands out within the energy sector for its innovative approach in providing cutting-edge technological solutions. The company focuses on harnessing the power of digital transformation to improve energy efficiency and operational effectiveness across the energy industry. Their services are designed to optimize energy production and distribution processes, ensuring higher efficiency and sustainability for clients striving to meet modern energy demands and environmental standards. Their strategic initiatives often align with the goal of enhancing resource management and maximizing the return on investment in energy infrastructures.

Location 🇨🇭 ZUG, Cham	Size View 4,456 employees
Revenue $ 500-1000M	Industries Information Technology, Energy, Software, Internet Services
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7. Ckw

Ckw, also known as Centralschweizerische Kraftwerke AG, operates predominately in Switzerland’s energy sector, focusing on the comprehensive supply of electricity as well as energy-related services. Based in Lucerne, Ckw places a strong emphasis on sustainable energy solutions and is heavily involved in the production, distribution, and trading of electricity. The company is particularly noted for its commitment to enhancing energy efficiency and promoting renewable energy sources to meet the demands of its diverse clientele across Switzerland.

Location 🇨🇭 Lucerne, Luzern	Size View 591 employees
Revenue $ 500-1000M	Industries Energy, Sustainability, Consumer Electronics, Real Estate, Hardware
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8. Romande Energie

Romande Energie, based in western Switzerland, is a major player in the energy sector dedicated to producing, distributing, and selling electricity. With a strong emphasis on renewable sources, Romande Energie harnesses hydroelectric power and other sustainable energies to service a large portion of the Swiss market. The company is deeply committed to innovation and sustainability, striving to meet the energy needs of its consumers while minimizing environmental impact. This dedication not only enhances their service offerings in Switzerland but also positions Romande Energie as a leader in the clean energy transition in the region.

Location 🇨🇭 Vaud, Morges	Size View 777 employees
Revenue $ 500-1000M	Industries Energy, Sustainability, Natural Resources
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9. Ewz

EWZ, based in Zurich, Switzerland, is an integral player in the energy sector, primarily engaged in the production and distribution of electricity. As a municipal enterprise, EWZ not only provides reliable power to the local populace but also ventures into international waters with projects focused on renewable energy and sustainable practices. Their forward-thinking approach aims to transition Zurich towards a more sustainable and environmentally friendly energy landscape, underscoring their commitment to innovation and ecological responsibility within the Swiss market. Efforts like these highlight EWZ’s role in shaping a future where energy generation harmonizes with environmental conservation.

Location 🇨🇭 Zurich	Size View 678 employees
Revenue $ 500-1000M	Industries Energy, Natural Resources, Sustainability
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10. Groupe E

Groupe E, based in Switzerland, is actively engaged in the energy sector, focusing primarily on the production, distribution, and sales of electricity. A major player in Swiss energy, Groupe E plays a pivotal role in championing sustainable energy solutions across the region, including the promotion of renewable energy sources and energy efficiency services. This commitment not only underscores their dedication to environmental stewardship but also strategically positions them to meet the evolving demands of the energy market in Switzerland.

Location 🇨🇭 Fribourg, Granges-paccot	Size View 1,050 employees
Revenue $ 500-1000M	Industries Professional Services, Energy, Sustainability
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