All Industries

Top Renewable Energy Companies

1,073 Renewable Energy companies, sorted by total funding raised.

Nextron Energia

Energy-as-a-service clean-tech platform for renewable energy in Brazil.

São Paulo, Brazil51–200Clean Tech, Energy
Series ATotal funding$6.0MMar 2024
Ilek

Fournisseur d'électricité et de gaz renouvelables

Toulouse, FranceClean Energy, Climate Tech
Venture RoundTotal funding$5.8M
Active Surfaces

Flexible solar panel manufacturer for building-integrated photovoltaics.

Woburn, United States1–10Clean Energy, Renewable Energy
Pre-seedTotal funding$5.6MMay 2024
Skoon Energy
Energy, Energy Storage
Series ATotal funding$5.6MOct 2023
Kona Deep

Kona Deep produces drinking water from Hawaiian deep-ocean sources, offering consumers naturally ...

Food & Beverage, Renewable Energy
Venture RoundTotal funding$5.5MNov 2017
PECOS WIND POWER INC

R&D company with 7 SBIR/STTR awards from Department of Energy, Department of Defense, Department ...

Somerville, United States1–10Energy, Renewable Energy
GrantTotal funding$5.4MSep 2024
SmartHelio

SmartHelio builds predictive analytics solutions that de-risk solar energy investments and delive...

Lausanne, Switzerland11–50Climate Tech, Renewable Energy
Series ATotal funding$5.3MDec 2022
AmpereHour

Battery Energy Storage Solutions for grid and off grid

Pune, IndiaArtificial Intelligence, Energy Storage
Series ATotal funding$5.0MMar 2025
Cadenza Innovation
Energy Storage, Manufacturing
Series ATotal funding$5.0MJul 2016
Joi Scientific
Clean Tech, Energy
Series ATotal funding$5.0MFeb 2016
ONTO TECHNOLOGY, LLC

R&D company with 7 SBIR/STTR awards from Department of Energy, Department of Defense, National Sc...

Bend, United States1–10Manufacturing, Sustainability
GrantTotal funding$5.0MJan 2024
LITTORAL POWER SYSTEMS, INC.

R&D company with 5 SBIR/STTR awards from Department of Energy.

NEW BEDFORD, United States1–10Clean Energy, Climate Tech
GrantTotal funding$4.7MSep 2021
OSCILLA POWER INC

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

Seattle, United States1–10Energy, Oil & Gas
GrantTotal funding$4.5MSep 2024
Coperniq

Workflow software for solar & energy contractors ☀️😎

San Francisco, United States1–10Climate Tech, Renewable Energy
SeedTotal funding$4.5MNov 2023
Dioxide Materials DBA Dioxide Recycle

R&D company with 1 SBIR/STTR awards from Department of Energy.

Champaign, United States11–50Climate Tech, Biotech
GrantTotal funding$4.5MSep 2024
Oxylus Energy

Oxylus is an e-methanol company working on CO2 electrolysis.

New Haven, United States1–10Energy, Carbon Capture
SeedTotal funding$4.5MSep 2024
Ringneck Energy
Agtech, Energy
Series ATotal funding$4.5MJun 2019
RTDT Laboratories

RTDT Laboratories builds Aerosense wireless sensor patches that capture aero-structural data from...

Zurich, SwitzerlandClimate Tech, Hardware
Pre-seedTotal funding$4.0MJul 2025
Plume

Plume is an AI site-intelligence platform for energy infrastructure developers, letting teams ana...

Paris, France1–10Climate Tech, Industrials
SeedTotal funding$3.8MApr 2026
Navitas Advanced Solutions Group, LLC

R&D company with 15 SBIR/STTR awards from National Aeronautics and Space Administration, Departme...

Ann Arbor, United States51–200Energy, Energy Storage
GrantTotal funding$3.8MJun 2019
DARCY SOLUTIONS, INC.

R&D company with 6 SBIR/STTR awards from Department of Agriculture, National Science Foundation, ...

Saint Paul, United States11–50Clean Tech, Sustainability
GrantTotal funding$3.6MAug 2024
SKYRE, INC.

R&D company with 14 SBIR/STTR awards from National Aeronautics and Space Administration, Departme...

EAST HARTFORD, United States11–50Clean Energy, Clean Tech
GrantTotal funding$3.5MSep 2019
PVILION, INC

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

New York, United States11–50Energy, Manufacturing
GrantTotal funding$3.5MJul 2024
Kitekraft

Building flying wind turbines.

Munich, Germany1–10Climate Tech, Hardware
SeedTotal funding$3.4MDec 2022
Renovate Robotics

Renovate Robotics builds a robot for commercial roofers, creating better tools for the physical e...

New York, United StatesConstruction, Automation
SeedTotal funding$3.3MMar 2025