All Industries

Top Clean Energy Companies

201 Clean Energy companies, sorted by total funding raised.

Masdar City

Pioneering sustainable urban community and innovation hub in Abu Dhabi.

Abu Dhabi, United Arab EmiratesClean Energy, Real Estate
Corporate Round·$22.0B·Feb 2008
NorthvoltClosed

Northvolt is a European battery manufacturer on a mission to deliver sustainable lithium-ion batt...

Stockholm, Sweden5001–10000Clean Energy, Manufacturing
Corporate Round·$3.4B·Jun 2021
Crusoe

AI infrastructure company building renewable-powered data centers and cloud compute optimized for...

Denver, United States201–500Artificial Intelligence, Clean Energy
Series E·$2.5B·Oct 2025
X-EnergyIPO

Advanced nuclear reactor company developing small modular reactors and TRISO fuel for clean power

Rockville, United States501–1000Clean Energy, Nuclear Energy
Series D·$1.9B·Nov 2025
Base Power

Home battery and energy company that provides distributed power storage to reinforce the electric...

Austin, United States51–200Clean Energy, Clean Tech
Series C·$1.3B·Oct 2025
TAE Technologies

Fusion energy company developing clean energy solutions.

Foothill Ranch, United States201–500Energy, Deep Tech
Series G Plus·$1.2B·Jun 2025
Redwood Materials

Redwood Materials recycles lithium-ion batteries and produces critical materials for energy stora...

Carson City, United States1001–5000Clean Energy, Manufacturing
Series E·$1.0B·Jan 2026
EnerVenue

leading energy storage startup accelerating grid flexibility

Fremont, United States51–200Clean Energy
Series B·$1.0B·Mar 2026
XpengIPO

Chinese manufacturer of smart electric vehicles combining AI driving and in-car systems for consu...

Guangzhou, China10001+Automotive, Clean Energy
Series C·$900.0M·Jul 2020
Sunfire

Manufactures industrial electrolyzers producing green hydrogen and syngas for heavy industries an...

Dresden, Germany501–1000Clean Energy, Hardware
Growth Equity·$788.5M·Jul 2025
Zenobe

UK-based battery storage and EV fleet electrification specialist, operating grid-scale batteries ...

London, United Kingdom201–500Clean Energy, Electric Vehicles
Growth Equity·$600.0M·Sep 2023
Palmetto

Clean energy platform that helps homeowners and partners adopt residential solar, financing, subs...

Charlotte, United States201–500Clean Energy, Energy Storage
Series D·$583.0M·Mar 2024
1Komma5

Climate tech unicorn and one-stop-shop for smart home energy solutions including solar panels, ba...

Hamburg, Germany1001–5000Clean Energy, Climate Tech
Venture Unknown·$565.0M·Jul 2025
Boston Metal

Develops Molten Oxide Electrolysis to produce low-carbon steel and recover valuable metals from m...

Boston, United States201–500Climate Tech, Manufacturing
Convertible·$525.0M·Jul 2025
Aurora Solar

Cloud-based software platform that transforms solar design, sales, and delivery with AI-powered t...

San Francisco, United States201–500Clean Energy, Renewable Energy
Series D·$520.0M·Feb 2022
Renewa

Renewable energy company focused on sustainable energy infrastructure and power generation

Houston, United States11–50Clean Energy, Infrastructure
Venture Unknown·$502.0M·Jan 2026
QuantumScapeIPO

Develops solid-state lithium-metal batteries for electric vehicles, improving energy density, cha...

San Jose, United States501–1000Clean Energy, Electric Vehicles
Corporate Round·$500.0M·Jun 2020
Radiant

Clean energy startup developing portable nuclear microreactors as zero-emission alternatives to d...

El Segundo, United States51–200Nuclear Energy, Clean Energy
Series D·$465.0M·Dec 2025
Inertia

Inertia is a commercial fusion energy company.

LivermoreClean Energy, Deep Tech
Series A·$450.0M·Feb 2026
Arcadia

Arcadia is a climate tech company providing advanced utility data platforms and AI-driven energy ...

Washington, United States501–1000Clean Energy, Data & Analytics
Series E·$405.0M·Apr 2024
Koloma

Data-driven natural hydrogen exploration company that identifies and produces low-carbon hydrogen...

Denver, United States51–200Climate Tech, Energy
Extension Round·$386.7M·Oct 2024
Beta TechnologiesIPO

BETA Technologies manufactures electric VTOL and CTOL aircraft, charging networks, and training f...

Burlington, United States501–1000Space Tech, Clean Energy
Series C·$375.0M·Oct 2024
6K

Plasma reactor manufacturer for sustainable advanced materials and batteries.

North Andover, United States51–200Advanced Materials, Manufacturing
Series E·$366.9M·Sep 2024
Field

Accelerating the build out of the renewable infrastructure needed to reach net zero

London, United Kingdom51–200Clean Energy, Energy Storage
Corporate Round·$334.0M·Jul 2023
Amogy

Develops ammonia-to-power systems converting ammonia into hydrogen to provide carbon-free power f...

New York, United States51–200Clean Energy, Industrials
Venture Unknown·$332.0M·Jul 2025