Energy Startups
4,799 companies tagged Energy, with their investors and founders.
HYDROGRID provides an investment simulation platform for hydropower operators and developers to evaluate capital decisions including turbine upgrades, reservoir expansions, and M&A opportunities using real-time data and hourly-granularity modeling.
2 investors
Hydromax USA provides utility field services and inspection solutions for gas, water, and wastewater utilities, using technology and data analytics for pipeline safety, gas leak surveys, cross bore detection, and asset mapping. The company operates across multiple U.S. locations and applies machine vision to analyze inspection footage.
2 investors
Hydromea builds AI-powered autonomous underwater vehicles (AUVs), robotic swarms, and high-bandwidth wireless communication systems for monitoring and collecting data from submerged infrastructure. Its solutions target operators of subsea assets in the ocean and energy industries, providing wireless data acquisition to support asset integrity monitoring and digital twins.
2 investors
Hygge Power develops energy products including plug-and-play energy storage, an energy forecasting app, and AI for comfort optimization, aimed at delivering cleaner energy to consumers. The company positions its offerings in the clean energy and deep tech space with a focus on combatting climate change.
2 investors
Hylosense develops environmental data analysis and weather forecasting technology. The company's founders previously created AirCare, a mobile app for air pollution tracking used by millions globally.
2 investors
Hystar is a Norwegian cleantech company that develops and manufactures high-efficiency PEM (Proton Exchange Membrane) electrolysers, which use renewable electricity and water to produce green hydrogen. It serves project developers, industrial operators and energy companies in hard-to-electrify sectors such as heavy industry, maritime transport, aviation fuels and fertiliser production.
2 investors
Hytrade provides AI-powered software and managed services that help renewable energy producers and green industry consumers optimize electricity trading and manage price volatility in the power market.
2 investors
HyWatts develops hydrogen fuel cell systems that deliver zero-emission power for applications including EV charging, data centers, and residential communities. The company targets customers who need reliable power in areas with limited grid infrastructure.
2 investors
I Squared Capital is a global infrastructure investment firm that has backed 100+ portfolio companies across sectors including renewables, power generation, transportation, digital infrastructure, water and waste, and elderly care. Its investments span 115+ countries providing essential services.
2 investors
INERGIO builds compact propane-powered solid oxide fuel cell (SOFC) systems that provide autonomous off-grid electricity for remote and mission-critical operations such as surveillance trailers, traffic management, and oil and gas sites. The systems are designed for harsh environments and complement solar and battery setups, and are deployed across Europe, the U.S., and Canada.
2 investors
Infinitum Electric develops high-efficiency electric motors optimized for data center cooling systems, delivering superior energy performance compared to conventional motors. The company focuses on reducing operational sustainability metrics in the data center industry.
2 investors
Infinium develops technology across two platforms, Infinium Energy and Infinium Edge, converting waste emissions into sustainable products and supporting more efficient scaling of next-generation computing. It operates in the energy and digital infrastructure sectors.
2 investors
Innervision (Wellbore Technologies) develops 3D wellbore imaging technology that maps the subsurface through solid steel casing in real time, detecting cracks in steel and cement, corrosion, perforations, and flow paths. It serves oil, gas, and geothermal well operators to monitor well integrity, reduce emissions, and optimize energy production.
2 investors
Innowatts offers an AI-powered SaaS platform that delivers energy load forecasting and customer insights for energy providers, including retail energy providers and utilities. The platform analyzes data from over 55 million meters to produce forecasts and business intelligence for the energy market.
2 investors
Insolight develops agrivoltaic solutions that combine solar energy generation with agricultural production, including its insolagrin system that integrates crop protection and solar panels on the same land. It serves farmers growing berries, orchards, vineyards, and field crops, offering end-to-end project support from consultation through operation and maintenance.
2 investors
Instagrid makes portable, battery-based power systems that deliver silent, zero-emission on-demand electricity as an alternative to combustion generators. It serves teams in construction, fabrication, facility management, and industrial operations that need mobile power for tools and equipment on jobsites and remote locations.
2 investors
Instream Energy develops patented hydrokinetic turbine systems that generate electricity from the flow of water in engineered and natural waterways, without dams or additional infrastructure. Founded in Canada in 2008, the company provides renewable baseload power for the energy market.
2 investors
ION Storage Systems develops solid-state battery technology, including its Cornerstone cell, and ships samples to consumer electronics manufacturers. It is a U.S.-based company in the energy storage and battery materials sector.
2 investors
Ionomr Innovations develops ion exchange membranes and polymers, including anion exchange membranes (AEM) and hydrocarbon proton exchange membranes (PEM), used in hydrogen generation, fuel cells, CO2-to-fuel conversion, and chemical recovery for heavy industry. Its advanced materials serve clean energy and industrial applications supporting the renewable and hydrogen economy.
2 investors
JT THORPE Group is a holding company providing specialized industrial servicesβincluding refractory, fireproofing, scaffolding, insulation, coatings, and mechanical solutionsβfor maintaining and extending the life of critical industrial assets. It serves industries such as cement, power generation, pulp & paper, and hazardous waste across the United States and Canada through its subsidiaries.
2 investors
JessCo Solutions sells, rents, refurbishes, and services vapor recovery and emissions control equipment for oilfield operators, including vapor recovery units, flares, combustors, burner management systems, industrial air compressors, and vapor recovery towers. The company focuses on EPA Quad O compliance and is based in West Texas's Permian Basin while serving clients nationally in the U.S.
2 investors
JET Charge provides electric vehicle charging installation services for homeowners, offering on-site or online electrical assessments and quotes for home EV charger installation. It operates through a network of installation partners linked to Toyota dealerships across Australia.
2 investors
Jigowatts develops, manufactures, and sells EV/PHV chargers and operates charging services, combining hardware and software technology. The company is an energy technology firm based in Tokyo, Japan.
2 investors
JOLT operates an end-to-end public EV charging network offering fast charging alongside integrated advertising and data services, including a daily allotment of free charging for drivers. It serves EV drivers, communities, and brand partners across North America, the UK, Australia, and New Zealand.
2 investors









