This article showcases our top picks for the best California 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 California Clean Energy Startups
Data sourced from Crunchbase and SemRush.
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.
Sunrun
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Sunrun provides residential solar electricity and solar power services for homeowners.
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.
Mainspring Energy
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Mainspring Energy is engineering advanced technology to revolutionize the way electricity is generated and delivered
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.
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.
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.
8minute Solar Energy
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8minute Solar Energy is the nation’s largest independent developer of solar PV and energy storage projects.
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.
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.
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.
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.
Wildcat Discovery Technologies
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Wildcat Discovery Technologies is a developer of materials for the use in batteries.
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.
NDB
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NDB is a Silicon Valley-based nanotechnology company established for the development of battery solutions, and energy propulsion systems.
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.
ChargerHelp!
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Dispatch and deployment system providing on-demand repairs and maintenance support from trained and supported local workforces.
Sighten
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Sighten develops a software toolset to manage the complexity of distributed solar.
King Energy
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King Energy is a next-generation energy company bringing solar power to multi-tenant commercial properties.
SyncFab
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OEM Parts Supply Chain Blockchain Procurement Platform and ERP Add-On for Aerospace, Automotive and Medical
H2U Technologies
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H2U Technologies is a clean-energy company developing a proprietary electrocatalyst discovery process for electrolyser.
AmpUp
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AmpUp is an electric vehicle (EV) software company that enables drivers, hosts, and fleets to charge stress-free.
MiaSolé
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MiaSolé is a solar energy company developing and selling Copper Indium Gallium Selenide thin film photovoltaic panels.
ReCarbon
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ReCarbon is an innovative technology platform that recycles carbon emissions into revenue generating byproducts.
CivicSolar
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CivicSolar is an innovative solar distributor that offers a full selection of modules and balance-of-systems from manufacturers.
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.
Watt Time
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Watt Time builds technologies that enable electronic devices to automatically sync the times they use power to moments of clean energy.
OneRoof Energy
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OneRoof Energy provides solar energy generation systems, and solar roofing systems installation and support services.
Clean Power Research
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Clean Power Research supports solar and other renewable energy systems and energy efficiency technologies.
Propel Fuels
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Propel Fuels is a commercial fuel provider that has a mobile application with a list of their locations.
Clean Wave Technologies
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Clean Wave Technologies develops electric drive systems for clean-powered vehicles.
SoloPower
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SoloPower is a producer of thin-film photovoltaic cells and modules that help solar electricity generation.
REPOWER by Solar Universe
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REPOWER is a residential & commercial solar aggregation company that is creating a marketplace of product offerings
Flex Energy Solutions
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Flex Energy Solutions designs and manufactures power generating systems for private and public entities.
Savion Aerospace
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Savion Aerospace is an aircraft manufacturer whose mission is to introduce cleaner energy into aviation.
Brillouin Energy
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Brillouin Energy develops renewable energy technologies capable of producing commercially useful amounts of thermal energy.
Power Factors
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Power Factors is a system of record to a System of Engagement and lower your levelized cost of renewable energy with Power Factors.
Taxon Biosciences
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Taxon Biosciences develops microbial structures for transformative apps in the agriculture, life sciences, and oil and gas industries.
Primordial Genetics
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Primordial Genetics develops microbes with genetic technology platform capable of significant productivity improvements.
Virdia
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Virdia develops cellulosic sugars and lignin for use in the renewable chemicals, bioenergy and nutrition industries.
Clean Air Power
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Clean Air Power has pioneered the move towards using natural gas to power vehicles by developing Dual-Fuel™ technologies that guarantee
Radian Generation
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Radian Generation is an independent solar asset management and advisory firm.
LytEn
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LytEn focuses on providing disruptive clean energy solutions.
Transonic Combustion
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Transonic Combustion is a cleantech company developing fuel injection systems.
kraftwerk Inc.
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Kraftwerk is a global leading company in the field of new materials and nanotechnology.
Blue Power Systems
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Adaptive Energy Generation and Storage System
Adura Technologies
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Adura Technologies develops enabling technologies for commercial building lighting control and energy management.
Terrajoule
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Terrajoule provides modular 2MW solar power stations with storage.
Shift Energy Holdings, Inc.
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Shift Energy is an engineering company that designs, develops and operates renewable fuels plants using waste feedstock.
SMASHsolar
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SMASHsolar breaks down barriers to solar for homeowners and contractors. The biggest barriers to solar adoption are cost and complexity.
Wind Harvest International
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Wind Harvest International manufactures and sells unique wind turbines for large untapped renewable resources.
Precursor Energetics
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Precursor Energetics develops clean energy materials such as LEDs and touch screen panels for the energy and electronic markets.
Adara Power Inc.
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Energy storage software and analytics for commercial and industrial
Pasteurization Technology Group (PTG)
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Pasteurization Technology Group (PTG) develops eco-friendly wastewater disinfection with the generation of renewable energy.
CleanTechnica
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CleanTechnica is a cleantech & clean energy website.
Vasari Energy
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Vasari Energy develops, designs, constructs, operates, and maintains utility-scale capital-efficient solar power systems that produce.
Solar Merchant
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Nation’s First Online Marketplace Focused on the Small Commercial Solar Sector
Cuberg
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Cuberg is a company delivering lithium metal cells produced on existing lithium-ion manufacturing lines for electromobility solutions.
Clean Energy Fuels
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Clean Energy is the largest provider of natural gas fuel for transportation in North America
Wind Harvest Pilot Project
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Wind Harvest Pilot Project is a subsidiary of Wind Harvest International.
MoreSolar
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MoreSolar is a clean energy company that utilizes wind power as a novel method for cleaning solar panels.
Greengro Technologies
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GreenGro Technologies provides design and consulting services to all agricultural divisions.
Caban Systems
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Caban Systems designs a software enabled energy storage solution for telecom infrastructure providers worldwide.
Sunworks
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Sunworks develops a 3-dimensional solar cell technology to maximize the conversion of sunlight into electricity.
Slingshot Power
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Slingshot Power focuses on delivering home and business owners with clean affordable energy.
Vega Energy Systems
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Vega Energy Systems is a clean energy startup focused on carbon nanotube electrodes for PEM fuel cell technology and more.
Sempra Energy
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Sempra Energy is a utility company that offers gas and electrical services to most California residence.
Nexant
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Nexant provides intelligent grid software and clean energy solutions that advance electric power grid and alternative energy services.
Waypoint
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The Real Estate Performance Platform(TM) – SF-based CRE Technology SAAS
NovaSolix
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NovaSolix develops an energy technology designed to generate a clean and low-cost form of energy.
World Energy
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World Energy has completed research and pre-prototype development of two monumental achievements in science.
Equal Earth Corporation
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Premier clean energy solutions provider servicing commercial/residential customers in CA, CO HI, Gaum & Fiji.
Greenkraft
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Greenkraft provides commercial trucks as well as alternative fuel systems and engines.
Ventata
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Maximize your profits with dynamic pricing. Guaranteed.
Sway
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Sway offers regenerative design solutions for plastic pollution using seaweed to create compostable replacements for single-use plastics.
ElectricFish
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ElectricFish is a distributed energy-storage-as-a-service business providing fast charging to EVs and backup energy reserves to the grid.
EcoLogik
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EcoLogik has strategic partnership with ZAF Energy US for battery technology and established sales partners with market presence in US.
Colored Solar
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Colored Solar manufactures, distributes and integrates solar electric systems.
Dalrada Corporation
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Innovative global solutions through science, health, clean energy, fengineering, and technology.
Peak Prosperity
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Peak Prosperity provides its users with insights on the future of the economy and advices accordingly.
