All Industries

Top Energy Companies

2,316 Energy companies, sorted by total funding raised.

Thea Energy

Develops planar‑coil stellarator fusion systems delivering scalable, zero-emission power using ma...

Kearny, United States51–200Clean Energy, Energy
Series BTotal funding$140.0MMay 2026
Element Energy

Element Energy builds battery management hardware, embedded software, and SaaS that improve safet...

Menlo Park, United States11–50Climate Tech, Energy
Series BTotal funding$139.0MNov 2023
SolarSquare

Designs and installs rooftop solar systems for homes, housing societies, and businesses across In...

Mumbai, India1001–5000Clean Energy, Climate Tech
Series CTotal funding$134.8MJun 2026
UrbintAcquired

At Urbint, we help utilities reduce risk across every layer of critical infrastructure - from und...

New York, United States51–200Artificial Intelligence, Energy
Growth EquityTotal funding$130.0MOct 2024
Aalo Atomics

Aalo Atomics is a nuclear engineering company that factory-fabricates modular reactors designed t...

Austin, United States51–200Energy, Hardware
Series BTotal funding$127.0MAug 2025
North American Helium
Energy, Industrials
Series BTotal funding$127.0MNov 2021
FlexGen
Energy, Energy Storage
Series CTotal funding$125.5MJul 2022
Tokamak Energy

Tokamak Energy develops commercial fusion energy and high-temperature superconducting magnet tech...

Abingdon, United Kingdom201–500Deep Tech, Energy
Venture RoundTotal funding$125.0MNov 2024
Moxion Power Co.Closed

Moxion Power manufactures the MP-75 intelligent mobile battery in the USA and supplies clean ener...

Richmond, United States201–500Climate Tech, Electric Vehicles
Venture RoundTotal funding$123.3MJun 2023
Flexiv Robotics

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

San Francisco, United States51–200Energy
Series CTotal funding$122.0MJun 2025
Infogrid

AI-powered building intelligence platform using IoT sensors to help facilities managers and real ...

London, United KingdomEnergy, IoT
Extension RoundTotal funding$118.5MApr 2024
Skan AI

Skan AI observes enterprise workflows and builds a context graph that helps AI agents automate co...

San Francisco, United States51–200Energy, Artificial Intelligence
Series CTotal funding$117.0MAug 2026
New Era Energy & DigitalIPO

Developer and operator of next-generation digital infrastructure and integrated power assets for ...

Midland, United States1–10Energy, Infrastructure
Venture RoundTotal funding$115.0MApr 2026
Enechain

enechain operates Japan's largest energy marketplace, where businesses trade electricity, fuels, ...

Tokyo, Japan51–200Energy, Fintech
Venture RoundTotal funding$113.9MApr 2026
Veir

VEIR builds superconducting power delivery systems that give AI data centers and industrial sites...

Woburn, United States11–50Clean Tech, Energy
Series BTotal funding$111.9MJan 2025
Insight M

Insight M is a consultative methane emissions management company helping oil and gas operators de...

Sunnyville, United States51–200Energy, Sustainability
Series ETotal funding$110.4MJun 2025
RS Composite Utility Poles

Manufacturer of composite utility poles and structures that enable resilient, sustainable grid in...

Calgary, Canada51–200Energy, Infrastructure
Venture RoundTotal funding$105.6MOct 2022
EcoFlow Tech

EcoFlow is a portable power and energy company founded in 2017 by entrepreneurs from a leading dr...

Clean Energy, Clean Tech
Series BTotal funding$104.0MJun 2021
Zeno Power

Develops radioisotope nuclear batteries delivering multi-year power for space missions and subsea...

Seattle, United States51–200Defense Tech, Energy
Series BTotal funding$103.4MMay 2025
BBOXX

Clean energy investee of Bamboo Capital Partners

Kigali, Kenya1001–5000Climate Tech, Energy
Series DTotal funding$101.0MAug 2019
Comstock ResourcesIPO

Comstock Resources is a leading independent natural gas producer focused on developing the Haynes...

Frisco, United States501–1000Energy
Private EquityTotal funding$100.5MMar 2024
Aspen Energy Partners

Invests in small- to mid-cap oilfield services and technology companies

Arvada, United StatesEnergy, Oil & Gas
SeedTotal funding$100.0MJan 2016
Kanin Energy

Canadian cleantech company converting industrial waste heat into clean baseload electricity via E...

Calgary, Canada1–10Clean Energy, Climate Tech
Venture RoundTotal funding$100.0MSep 2026
PosiGen
Clean Energy, Climate Tech
Growth EquityTotal funding$100.0MJan 2022
Radiance Renewables

Indian renewable energy company developing solar and wind infrastructure.

Mumbai, India501–1000Climate Tech, Energy
Growth EquityTotal funding$100.0MFeb 2026