Energy Industry in
Lausanne

CIEL Electricité SA

Since 1947 · 51–100 empl.·4.2(69)

CIEL Electricité SA is a brand of Eiffage Énergie Systèmes Suisse that provides electrical engineering services. The company carries out design, installation and after‑sales service for electrical installations and supplies photovoltaic systems, EV charging stations, building automation, network and alarm solutions, and performs OIBT conformity checks and 24/7 emergency repairs.

Gaznat SA Société pour l'Approvisionnement et le Transport du Gaz naturel et renouvelable en Suisse Occidentale

Since 1968 · 21–50 empl.

Gaznat SA Société pour l'Approvisionnement et le Transport du Gaz naturel et renouvelable en Suisse Occidentale is active in the supply and transport of natural and renewable gas in Western Switzerland. The company operates a high-pressure network, procures gas on the markets, and develops projects related to storage, infrastructure safety, and energy innovation.

Hydro Operation International SA

Since 2014 · 11–20 empl.

The company's core activity is the transformation of hydroelectric energy in Africa by providing services in the areas of: Operation and Maintenance (E&M) of hydroelectric plants, Project Management, Asset Management, Rehabilitation of power plants, Specialized Engineering Services, and Training and Knowledge Transfer. The company focuses on long-term maintenance and operation of hydroelectric plants in Africa to ensure a reliable and sustainable energy supply.

SoHHytec SA

Since 2020 · 11–20 empl.

The core activity of SoHHytec is the development and provision of sustainable technologies for the production of green hydrogen and renewable energy, particularly for use in various industries such as the chemical industry, space sector and micro-grid provision. The company focuses on the development of patented technologies that offer a cost-effective and environmentally friendly solution for the production of green hydrogen and renewable energy.

Eiffage Energie Systèmes Multitechniques SA

Since 2017 · 1–10 empl.

The company provides services in the field of technical building equipment and facility management. The core activities include planning, installation, maintenance and servicing of heating, sanitary, ventilation, air conditioning and cooling systems as well as water and gas pipeline networks. In addition, the company offers energy solutions, including energy contracting, and facility management services to extend the lifespan of installations and improve energy efficiency.

Amaudruz Énergies SA

Since 2013 · 1–10 empl.·4.1(9)

Amaudruz Énergies SA is the energy division of Amaudruz SA offering renewable energy and solar services. Its activities include design and installation of photovoltaic systems, solar contracting, smart energy management and metering, battery storage, microgrids and aggregation of local consumption (RCP), and electric vehicle charging infrastructure, as well as turnkey solutions in partnership with heating and roofing contractors.

H2REMA Sàrl

Since 2024 · 1–10 empl.

The company REMA develops and manufactures electrolyzers for the production of green hydrogen. The company's core activity lies in the development of cost-effective and scalable solutions for hydrogen production, particularly through the use of anion exchange membranes (AEMs) and fluid mechanics. The company offers various products, including the REMA Be1 and REMA We1, which are suitable for small to medium-scale applications.

Windworks SA

Since 2025 · 1–10 empl.

Windworks SA develops a real-time blade control framework for vertical-axis wind turbines and supplies commercial-scale turbine systems and retrofit solutions to enable on-site power production. Its offerings include control software, sensor instrumentation and remote monitoring aimed at commercial, industrial, agricultural and community energy projects.

ELECTROFUELED Sàrl

Since 2026 · 1–10 empl.

ELECTROFUELED Sàrl develops technologies for producing e-fuels from CO₂, water and renewable electricity. The company combines proprietary co-electrolysis with Fischer–Tropsch synthesis to produce synthetic fuels such as e-SAF, e-diesel and e-gasoline.

Centrale thermique 23, chemin des Bossons Lausanne SA

Since 1967 · 1–10 empl.

Bernard Bezençon, SGI

Since 1992 · 1–10 empl.

INFINE Industrie Finance Energie Sàrl

Since 2003 · 1–10 empl.