All Industries

Top Energy Companies

583 Energy companies, sorted by total funding raised.

Venture GlobalIPO

Liquefied natural gas company building large-scale LNG export facilities in Louisiana

Arlington, United States501–1000Energy, Infrastructure
Private Equity·$2.1B·Aug 2019
Commonwealth Fusion

MIT spinout developing compact tokamak fusion power plants using high-temperature superconducting...

Cambridge, United States501–1000Energy, Nuclear Energy
Series B·$2.0B·Nov 2021
Slate Auto

Builds affordable, highly customizable electric pickup trucks convertible to SUVs for individual ...

Troy, United States201–500Energy, Electric Vehicles
Series C·$2.0B·Apr 2026
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
Kraken Technologies

AI-powered operating system for energy, water, and telecom utilities that provides customer manag...

London, United Kingdom1001–5000Energy, Artificial Intelligence
Growth Equity·$1.0B·Dec 2025
VoltaGrid

Power generation solutions for data centers, microgrids, and industrial applications

Houston, United States201–500Climate Tech, Energy
Growth Equity·$1.0B·May 2026
Twelve

Carbon transformation company that converts CO2 into essential products like sustainable aviation...

Berkeley, United States201–500Carbon Capture, Clean Tech
Extension Round·$928.0M·Apr 2025
Pacific Fusion

Pacific Fusion was founded in 2023 to develop pulsed magnetic inertial fusion for abundant, affor...

Fremont, United States51–200Energy
Series A·$900.0M·Oct 2024
Rigup

Source-to-pay platform for energy companies, combining software and services to manage vendors, w...

Austin, United States501–1000Energy, Labor
Series E·$675.6M·May 2021
Mainspring Energy

Developer of linear generator technology providing flexible, fuel-agnostic onsite power generatio...

Menlo Park, United States51–200Energy, Climate Tech
Series F·$643.0M·Apr 2025
Electric Hydrogen

Manufacturer of high-power PEM electrolyzers that produce the lowest-cost green hydrogen for indu...

Devens, United States201–500Climate Tech, Energy
Series C·$602.0M·Oct 2023
Workrise

Source-to-pay platform and staffing vendor network that helps energy companies find, onboard, and...

Austin, United States501–1000Energy, HR Tech
Series E·$600.0M·May 2021
General Matter

American energy company focused on fueling US power infrastructure and accelerating economic growth.

United States1–10Energy, Infrastructure
Venture Unknown·$550.0M·Mar 2026
Fever

Fever is a powertech company building an API-centric platform for virtual power plants.

Madrid, Spain1001–5000Energy, Entertainment
Series F·$515.3M·Jun 2025
FLO

EV charging network and station provider for home, commercial, and fleet use across North America.

Montreal, Canada201–500Electric Vehicles, Energy
Series D·$400.0M·Apr 2024
Kpler

Kpler powers decisions that move the world, connecting billions of data points to uncover opportu...

Brussels, Belgium501–1000Fintech, SaaS
Growth Equity·$400.0M·Apr 2022
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
Blue Energy

Developer of small modular nuclear reactors for AI data centers.

Chicago, United States51–200Climate Tech, Energy
Venture Unknown·$380.0M·Apr 2026
Dresser Utility Solutions

Dresser Utility Solutions provides safe and reliable infrastructure technology and products to ut...

Dallas, United States501–1000Energy, Industrials
Private Equity·$375.0M·Jul 2018
Capstone Turbine CorporationIPO

Manufacturer of low-emission microturbine energy systems for commercial and industrial applications.

Van Nuys, United States201–500Clean Tech, Energy
Corporate Round·$372.5M·Mar 2026
Redaptive

Turnkey portfolio wide energy efficiency retrofits for the Fortune 500

Denver, United States201–500Clean Tech, Energy
Corporate Round·$356.5M·Dec 2022
HeliogenAcquired

Concentrated solar power company enabling carbon-free industrial heat and green hydrogen.

Pasadena, United States11–50Climate Tech, Energy
Series B·$342.0M·Nov 2024
SunPowerIPO

Solar power and renewable energy company.

Orem, United States501–1000Climate Tech, Energy
Venture Unknown·$339.0M·Apr 2026
Vayyar Imaging

Vayyar creates radar imaging sensors based on unique RF technology to monitor the environment in ...

Tokyo, Israel201–500Energy, Defense Tech
Series E·$261.0M·Jun 2022