This article showcases our top picks for the best United States based Clean Energy companies. These startups and companies are taking a variety of approaches to innovating the Clean Energy industry, but are all exceptional companies well worth a follow.
We tried to pick companies across the size spectrum from cutting edge startups to established brands.
We selected these startups and companies for exceptional performance in one of these categories:
- Innovation
- Innovative ideas
- Innovative route to market
- Innovative product
- Growth
- Exceptional growth
- Exceptional growth strategy
- Management
- Societal impact
Top United States Clean Energy Startups
Data sourced from Crunchbase and SemRush.
BlocPower
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BlocPower is an energy technology startup that develops healthier, greener, and smarter cities.
EcoFlow
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EcoFlow designs, develops and manufactures eco-friendly and affordable portable power stations for personal and professional use.
Aurora Solar
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Aurora Solar is a SaaS company that uses aerial imagery to assess solar installation projects.
Arcadia
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Arcadia is a nationwide home energy platform providing clean energy and savings.
Sunrun
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Sunrun provides residential solar electricity and solar power services for homeowners.
Nexamp
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Nexamp transforms the new energy economy with proven solutions for solar energy development, ownership, and operation.
LanzaTech
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Creating new economic opportunities for companies, communities and countries around the world.
Commonwealth Fusion
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Commonwealth Fusion is an MIT spinoff research company that focuses on bringing fusion energy technology to market.
First Solar
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First Solar manufactures thin film photovoltaic modules and provides PV power plants and supporting services.
FreeWire Technologies
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FreeWire Technologies is a provider of electric vehicle (EV) charging and power solutions.
HyPoint
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The next generation hydrogen fuel cell system for air transportation market
TAE Technologies
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TAE Technologies is leveraging proprietary science and engineering to tackle the world’s biggest challenges.
Mosaic
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Mosaic is a residential solar lending platform that enables thousands of people to profit from the benefits of clean energy.
Powur
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Powur, a technology company, enables direct sellers to participate in the residential shift from dirty to clean energy.
Hyliion
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Hyliion is a provider of electrified powertrain solutions for the commercial vehicle industry.
Mainspring Energy
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Mainspring Energy is engineering advanced technology to revolutionize the way electricity is generated and delivered
Sealed
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Sealed offers smart home retrofits and turnkey project management to upgrade home easily.
Palmetto Clean Technology
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Palmetto Clean Technology builds and operates clean energy projects for residential, commercial, and utility customers.
3Degrees
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3Degrees is a provider of carbon offset and renewable energy services and solutions.
Lygos
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Lygos provides biotechnology solutions for today’s renewable chemical challenges.
Inspire
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Consumer technology platform that powers cleaner, more efficient, and more sustainable homes.
XL Fleet
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XL Fleet is a provider of electrified powertrain solutions for commercial fleet vehicles.
Renew Financial
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Renew Financial is a provider of district legislation financing to assist in property assessed clean energy (PACE) improvement financing.
Greenlight Planet
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Greenlight sells, installs and finances solar home systems for the 1.8 billion off-grid and under-electrified consumers in Africa and Asia.
FirstEnergy Corp.
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FirstEnergy (NYSE: FE) is a diversified energy company dedicated to safety, reliability and operational excellence.
Ygrene Energy Fund
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Provides Property Assessed Clean Energy (PACE) financing through cities and counties for upgrades to commercial and residential properties.
Ubiquitous Energy
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Ubiquitous Energy makes transparent solar technology for windows, electronics, and other applications.
Quaise
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Quaise is an energy company that develops a millimeter-wave drilling technology to access deep geothermal energy.
Sunnova
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Sunnova is a solar power company providing nationwide coverage with local minded service to thousands of homes across the United States
XENERGY
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X-energy is a nuclear reactor & fuel design engineering company.
8minute Solar Energy
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8minute Solar Energy is the nation’s largest independent developer of solar PV and energy storage projects.
NextEra Energy Partners
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A growth-oriented limited partnership formed by NextEra Energy
Vivint Solar
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Vivint Solar is a provider of solar solutions and a growing residential solar power providers.
ROOMBUS
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Hardware startup building sustainable Smart Homes powered by IoT and renewable energy.
Runa
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Runa brings clean energy, from using ingredients to how to source & produce great-tasting energy drinks.
Solstice
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Solstice provides turnkey customer solutions for shared solar.
Enbala
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Enbala exists to create an energy future that’s sustainable and balanced. We do that by harnessing the power of distributed energy.
Sunverge Energy
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Sunverge Energy provides integrated solar solutions for distributed generation and storage.
Glydways
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Glydways is a transportation technology and clean energy company that designs and manufactures autonomous transportation.
Treau
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Treau is making home heaters and air conditioners that are better for the environment, easier to install, and more pleasant to use.
Clean Energy Trust
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Clean Energy Trust supports early-stage startups working on solutions for clean energy, decarbonization, and environmental sustainability.
Enervee
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Enervee is a platform-oriented company that drives energy efficiency and consumer engagement through a suite of innovative SaaS products.
GridX
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GridX is a provider of cloud-based business operations support tools to utilities and energy suppliers.
Fervo Energy
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Fervo Energy is a developer of proprietary clean energy technology to generate power from enhanced geothermal systems.
Duke Energy Florida
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Duke Energy Florida is one of the largest energy holding company.
Sungevity
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Sungevity develops remote solar designs and installation services for home solar electric systems.
Advanced Microgrid Solutions
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Advanced Microgrid Solutions installs advanced energy storage systems in buildings to lower energy costs for consumers and provide clean.
POWER.GLOBAL
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POWER.GLOBAL is bringing affordable clean energy electric vehicle technology to low income markets
GreenFire Energy
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GreenFire Energy develops and deploys innovative technology to unlock the world’s largest source of continuous renewable energy.
Moxion Power
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Moxion Power develops zero-emission generators and off-road equipment to support industries.
enVerid Systems
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enVerid provides indoor air quality and HVAC energy-saving technologies for commercial buildings.
LineVision
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LineVision increases the capacity, flexibility, and reliability of transmission lines with non-contact sensors and advanced analytics.
CleanChoice Energy
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CleanChoice Energy is a clean energy supplier whose mission is to make 100% renewable energy available to everyone.
Amogy
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Amogy builds an innovative clean energy system using ammonia as a renewable fuel
Scale Microgrid Solutions
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Scale Microgrid Solutions is a distributed clean energy and microgrid platform.
Wildcat Discovery Technologies
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Wildcat Discovery Technologies is a developer of materials for the use in batteries.
U.S. Environmental Protection Agency
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EPA’s mission is to protect human health and the environment.
BWX Technologies
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BWX Technologies Inc. (BWXT) is a supplier of nuclear components and fuel to the U.S. government.
Lumen Energy
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Lumen Energy focuses on helping building owners save money with clean energy.
C3Nano
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C3Nano develops transparent conductive ink and films intended to enhance touchscreen and digital display experience.
HyperSciences
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HyperSciences provides solutions for tunneling, energy drilling, transportation, aerospace, and materials production problems.
Nextera Energy
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NextEra Energy is a publicly-traded electricity generation, transmission, and distribution company.
NDB
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NDB is a Silicon Valley-based nanotechnology company established for the development of battery solutions, and energy propulsion systems.
Skyonic
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Skyonic is an environmental technology company providing green chemistry solutions for profitable carbon management.
Sentient Energy
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Sentient Energy designs and builds the MM2 line monitor for use by electric utilities worldwide.
EverCharge
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Evercharge provides electric vehicle charging services to EV owners in multi-unit residences.
Altaeros Energies
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Altaeros Energies develops airborne wind turbine to produce abundant, low cost, renewable energy.
NET Power
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NET Power produces power from natural gas at costs comparable to existing technologies. All CO2 is captured at no extra cost.
ChargerHelp!
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Dispatch and deployment system providing on-demand repairs and maintenance support from trained and supported local workforces.
Pearl Certification
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Pearl provides third-party certification of healthy, safe, comfortable, energy, and water-efficient homes.
Duke Energy Indiana
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Duke Energy Indiana provides utility services.
Sighten
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Sighten develops a software toolset to manage the complexity of distributed solar.
Genera Energy
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Genera Energy provides integrated biomass supply solutions for the advanced biofuels, biopower, and bio-based products industries.
Tank Utility
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Tank Utility streamlines energy delivery for those that rely on truck-delivered oil or propane.
King Energy
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King Energy is a next-generation energy company bringing solar power to multi-tenant commercial properties.
Steelhead Composites
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Steelhead Composites is a provider of hydrogen storage solutions used to allow widespread zero-emission fuel cell electrification.
SyncFab
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OEM Parts Supply Chain Blockchain Procurement Platform and ERP Add-On for Aerospace, Automotive and Medical
GreatPoint Energy
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GreatPoint Energy is a technology-driven natural resources company.
H2U Technologies
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H2U Technologies is a clean-energy company developing a proprietary electrocatalyst discovery process for electrolyser.
WindESCo
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Windesco is an energy company thadt psecializes in prioviding hardware and software solutions for wind-power assets.
AmpUp
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AmpUp is an electric vehicle (EV) software company that enables drivers, hosts, and fleets to charge stress-free.
Ogin
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Ogin develops shrouded wind turbines using a novel aerodynamic technology known as a mixer/ejector.
Kilowatt Labs
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Kilowatt Labs is a developer of energy storage and distribution platform designed to deliver stable and reliable electricity 24 hours a day.
MiaSolé
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MiaSolé is a solar energy company developing and selling Copper Indium Gallium Selenide thin film photovoltaic panels.
National Renewable Energy Laboratory
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NREL develops renewable energy and energy efficiency technologies and practices.
ReCarbon
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ReCarbon is an innovative technology platform that recycles carbon emissions into revenue generating byproducts.
Synata Bio
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Synata Bio is a developer of a fermentation technology designed to process synthesis gas from multiple sources into products.
Sunwealth Power
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Sunwealth Power is a operator of a tech-driven clean energy investment firm created to invest in clean and solar energy projects
NODE
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A patent-pending system for zero emission homes, that solves the most acute problems in residential construction.
CivicSolar
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CivicSolar is an innovative solar distributor that offers a full selection of modules and balance-of-systems from manufacturers.
OneEnergy Renewables
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OneEnergy is an independent developer of solar energy that specializes in the development of large-scale clean energy projects.
Oxford Performance Materials
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OPM is a commercial company delivering fully functional end-use products to the biomedical, aerospace, and industrial markets.
REsurety
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REsurety is a provider of risk management products to the buyers and sellers of clean energy.
Semtive
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Semtive is an energy technology company that develops small scale wind turbines for decentralized wind energy generation.
Deep Isolation
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Innovative startup with an equitable and environmentally protective solution for nuclear waste storage or disposal, a $500B untapped market.
SolarWindow Technologies
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SolarWindow Technologies, Inc. is a developer of next generation, transparent electricity-generating SolarWindow™ coatings.
OBE Power
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OBE Power Networks is the owner and operator of an integrated ecosystem of Electric Vehicles Charging Stations and related services.
BlueDot Photonics
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BlueDot Photonics develops solar energy devices to improve solar panel performance and durability.
