All Industries

Top Energy Companies

583 Energy companies, sorted by total funding raised.

Nira Energy

Software to find the best sites for renewables on the electrical grid

Denver, United States11–50Climate Tech, Energy
Seed·$65.5M·May 2025
Pioneer TransformersAcquired

Designs and manufactures custom liquid-filled power transformers up to 25 MVA for utilities, indu...

Granby, Canada201–500Energy, Manufacturing
Private Equity·$65.5M·Jul 2019
OhmconnectAcquired

Provider of a real-time energy monitoring platform designed to increase energy efficiency. The co...

San Francisco, United States51–200Energy
Series D·$63.5M·Jun 2022
ThinkLabs AI

AI platform for utility grid modernization and energy management.

New York, United States1–10Artificial Intelligence, Energy
Venture Unknown·$61.0M·Apr 2026
CustomCellsAcquired

Develops and industrializes premium battery cells and cell technology for automotive, aviation, m...

Itzehoe, Germany51–200Energy, Energy Storage
Series A·$60.0M·Dec 2022
Lydian Labs

Lydian Labs aims to revolutionize the thermal catalytics process to decarbonize the chemicals ind...

Cambridge, United States11–50Energy, Climate Tech
Series A·$58.7M·Jan 2026
Mantle

Mantle’s TrueShape™ technology prints, shapes, and sinters precision metal parts from a CAD file ...

San Francisco, United StatesEnergy
Series C·$58.0M·Jul 2024
Leap

Platform for building and scaling virtual power plants, connecting distributed energy resources t...

San Francisco, United States51–200Clean Energy, Energy
Extension Round·$57.7M·Nov 2023
SolarSquare

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

Mumbai, India1001–5000Renewable Energy, Solar Energy
Series B·$56.8M·Dec 2024
Skan AI

Skan is where business process execution meets AI. The largest companies in the world use Skan to...

San Francisco, United States51–200Energy, Artificial Intelligence
Series B·$54.0M·Mar 2022
Liberation Labs

Climate and energy sustainability company developing next-generation fermentation infrastructure.

Richmond, United States11–50Climate Tech, Energy
Convertible·$50.5M·Jan 2025
Sustech
Tokyo, JapanEnergy, Sustainability
Venture Unknown·$50.0M·Oct 2024
OpenLegacy

Instantly Integrate Core Systems to the Cloud- Enabling organizations with legacy systems to rele...

Tokyo, United States51–200Energy, Developer Tools
Series C·$50.0M·Feb 2020
SDCL

Sustainable Development Capital LLP is a developer, investor and fund manager focused on energy e...

London, United Kingdom11–50Climate Tech, Clean Energy
Corporate Round·$50.0M·Jun 2024
Zeno Power

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

Seattle, United States51–200Defense Tech, Energy
Series B·$50.0M·May 2025
David Energy

David Energy is a technology-driven retail electricity provider that manages distributed energy r...

Brooklyn, United States11–50Clean Tech, Energy
Series B·$49.1M·Apr 2024
LIQUIDPISTON, INC

R&D company with 8 SBIR/STTR awards from Department of Defense.

BLOOMFIELD, United States11–50Aerospace, Defense Tech
Seed·$48.2M·Mar 2026
Erthos

Utility-scale earth-mounted solar PV company that lays panels flat on the ground to reduce costs ...

Tempe, United States51–200Energy, Clean Energy
Series A·$48.0M·Sep 2023
XL Batteries

They aim to bring widespread electrochemical storage to the grid for use anywhere, anytime

Paris, United StatesEnergy, Climate Tech
Seed·$46.0M·Sep 2025
Stem

Provides AI-driven software and managed services to optimize solar and battery energy assets for ...

San Francisco, United States501–1000Artificial Intelligence, Clean Energy
Series B·$45.2M·Dec 2013
InnowattsAcquired

AI-powered energy analytics platform providing forecasting and consumer insights to utilities, en...

Houston, United States51–200Artificial Intelligence, Energy
Series B·$45.0M·Feb 2021
Queens Carbon

Queens Carbon is developing groundbreaking processing technology to significantly reduce the ener...

San Francisco, United States1–10Energy, Clean Tech
Seed·$44.5M·Apr 2025
Exponent EnergyIPO

Builds full-stack battery packs and rapid-charging systems for commercial EVs (autorickshaws to b...

Bengaluru, India51–200Electric Vehicles, Energy
Series B·$44.4M·Dec 2023
Sepio Systems

Sepio helps organizations manage their Hardware assets related risks based on physical layer data.

San Francisco, United States51–200Energy, Cybersecurity
Series B·$43.5M·Aug 2024
GridX

Enterprise rate engine platform helping utilities design, analyze, and communicate complex energy...

Milpitas51–200Energy
Series C·$40.0M·Apr 2022