All Industries

Top Energy Companies

583 Energy companies, sorted by total funding raised.

Zolar

AI-first platform connecting homeowners and installers to design, buy, and manage residential sol...

Berlin, Germany11–50Clean Energy, Climate Tech
Growth Equity·$254.2M·Apr 2024
HoloSolis

Solar energy technology company.

Sarreguemines, France11–50Climate Tech, Energy
Venture Unknown·$245.0M·Nov 2025
Innoviz TechnologiesIPO

Innoviz develops technologies for autonomous driving that includes smart 3D sensing, sensor fusio...

Tokyo, United States201–500Energy, Defense Tech
Venture Unknown·$244.0M·Nov 2018
CubicPV Inc. (1366 Technologies)Acquired

Solar technology company developing high-efficiency silicon wafers to reduce the cost of solar en...

Bedford, United States51–200Clean Tech, Energy
Growth Equity·$208.8M·Jun 2023
Hydrostor

Hydrostor develops and operates long-duration energy storage systems using Advanced Compressed Ai...

Toronto, Canada51–200Energy
Venture Unknown·$200.0M·Feb 2025
PhysicsX

PhysicsX specializes in using advanced physics simulations for industrial applications.

London, United Kingdom51–200Aerospace & Defense, Artificial Intelligence
Series B·$184.0M·Nov 2025
LanzaTechIPO

Transforms industrial carbon-rich gases into sustainable fuels and chemicals for industrial partn...

Skokie, United States201–500Climate Tech, Energy
Corporate Round·$183.0M·May 2025
PowerXAcquired

AI powered sensors that save energy, water and emissions

New York, United States11–50Climate Tech, Energy
Series C·$182.8M·Mar 2025
Standard Nuclear

Manufacturer of TRISO nuclear fuel for advanced reactors, supplying utilities and reactor develop...

Oak Ridge, United States11–50Clean Energy, Nuclear Energy
Series A·$182.0M·Jan 2026
NoTraffic

NoTraffic is a plug & play turnkey solution for managing traffic using AI & Real-time optimization.

Tokyo, Israel51–200Energy, Artificial Intelligence
Series C·$178.7M·Mar 2026
Enter

Enter helps large companies use AI to boost legal efficiency and win more cases.

Berlin, Germany51–200Clean Tech, Energy
Series B·$177.8M·May 2026
Tibber

Digital energy company using an app and smart technology to sell renewable electricity and optimi...

Førde, Norway201–500Clean Tech, Energy
Series C·$177.0M·Jun 2022
Marvel Fusion

Munich-based fusion energy company developing laser-driven inertial fusion power plants for indus...

Munich, Germany51–200Deep Tech, Energy
Series B·$172.8M·Mar 2025
SparkCognition

Empowering the world’s problem-solvers and catalyzing growth with their proven artificial intelli...

San Francisco, United States201–500Energy, Artificial Intelligence
Series C·$162.5M·Oct 2019
Mangrove Lithium

Develops electrochemical lithium refining technology to produce battery-grade lithium for produce...

Delta, Canada11–50Advanced Materials, Clean Tech
Growth Equity·$148.7M·Jan 2026
Enechain

Online energy trading platform connecting buyers and sellers.

Tokyo, Japan51–200Energy, Fintech
Venture Unknown·$145.9M·Apr 2026
UrbintAcquired

AI platform helping utilities prevent infrastructure damage, improve worker safety, and respond t...

New York, United States51–200Artificial Intelligence, Energy
Growth Equity·$130.0M·Oct 2024
Tokamak Energy

Fusion energy startup developing compact tokamak reactors and high-temperature superconducting ma...

Abingdon, United Kingdom201–500Deep Tech, Energy
Venture Unknown·$125.0M·Nov 2024
Moxion Power Co.Closed

Mobile Energy Storage Technology

Richmond, United States201–500Climate Tech, Electric Vehicles
Venture Unknown·$123.3M·Jun 2023
Flexiv Robotics

Flexiv is a global leading robotics and AI company, focusing on developing and manufacturing adap...

San Francisco, United States51–200Energy
Series C·$122.0M·Jun 2025
Zanskar

AI-native geothermal company that uses subsurface data and geoscience to find and develop utility...

Salt Lake City, United States51–200Artificial Intelligence, Clean Tech
Series C·$115.0M·Jan 2026
Veir

MIT startup to watch in 2026.

Woburn, United States11–50Clean Tech, Energy
Series B·$111.9M·Jan 2025
Element Energy

Battery management and energy storage technology company.

Menlo Park, United States11–50Climate Tech, Energy
Series B·$111.0M·Nov 2023
Insight M

High-frequency aerial methane detection and emissions management for oil and gas operators.

Sunnyville, United States51–200Energy, Environmental Services
Series E·$110.4M·Jun 2025
Antares Industries

Making energy abundant from Earth to the asteroid belt

Los Angeles, United States51–200Defense Tech, Energy
Series B·$109.0M·Dec 2025