FirmLens
Europe · 17615 companies · Updated Mar 2026

Find the right renewable energy company for every project

Search 17.6k+ verified companies across solar, wind, hydrogen, storage, and more.

17615

Verified companies

30+

Countries

8

Energy sectors

TH

Thorizon

Amsterdam, Netherlands

Thorizon develops advanced molten salt reactors to generate stable, reliable clean energy and high-temperature industrial steam. The company leverages nuclear waste as fuel through innovative, circular technology designed to decarbonize energy systems.

NuclearMolten Salt ReactorNuclear Waste Utilization
Est. 2024
SE

Svet Energije

Krško, Slovenia

Svet Energije is an interactive multimedia center dedicated to energy education and awareness. Owned by GEN energija, it promotes understanding of renewable energy sources, energy efficiency, and sustainable electricity production through exhibitions, educational programs, and public engagement initiatives.

NuclearRenewable Energyenergy educationinteractive center
Est. 2011
GE

GEN energija

Krško, Slovenia

Leading Slovenian energy group producing low-carbon electricity from nuclear, hydropower, and renewable sources. Develops sustainable energy infrastructure and JEK2 nuclear project while expanding solar and wind capacity.

NuclearHydronuclearhydro
CE

Constellation Energy

Baltimore, USA

Constellation Energy is the nation's largest producer of clean, reliable energy. The company generates carbon-free power from nuclear, hydro, wind, solar, and geothermal facilities, serving Fortune 100 companies and providing around-the-clock reliability across the United States.

NuclearSolarclean energynuclear generation
Est. 2022
NE

NextEra Energy

Juno Beach, United States

NextEra Energy is one of North America's largest electric power and energy infrastructure companies. The company operates over 80,000 megawatts of generating capacity across more than 450 sites, leveraging renewable energy, nuclear, natural gas, and battery storage to power millions of customers.

SolarWind
Est. 19255000+ emp
NE

NextEra Energy Resources

Juno Beach, United States

NextEra Energy Resources is North America's largest energy infrastructure developer, operating a diverse portfolio of over 40,000 MW across renewables, nuclear, natural gas, and battery storage, delivering customized solutions to utilities, public power providers, and commercial customers.

SolarWind
40 GW
RS

Rockfin S.A.

Żukowo, Poland

Global supplier of auxiliary systems and technical solutions for energy industry. Delivers precision-engineered solutions for nuclear, renewable energy, hydrogen, oil and gas, and conventional power plants across 100+ countries since 1991.

NuclearSolarauxiliary systemsenergy solutions
Est. 19911000-5000 emp

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