Energy Startups
5,967 companies tagged Energy, with their investors and founders.
Hychor develops HySET, an electrochemical technology that produces green hydrogen from seawater and renewable electricity, reducing reliance on freshwater and grid connection. Spun out of the University of Aberdeen, the company works on system design, materials testing, and scale-up ahead of planned industry projects.
2 investors
Hydrasun designs and supplies integrated fluid transfer, power and control products for traditional and emerging energy sectors, with specialised solutions for hydrogen applications.
2 investors
Hydromax USA provides advanced field services and digital infrastructure solutions for gas, water, and wastewater utilities, helping them improve operational safety, sustainability, and reliability through data-driven insights and process optimization.
2 investors
Hydromea builds autonomous underwater vehicles and high-bandwidth, low-power wireless communication systems to collect and relay inspection and sensor data from submerged infrastructure. It serves operators of subsea assets, offering wireless asset-integrity monitoring aimed at the offshore energy and ocean industries.
2 investors
2 investors
Hydroyal manufactures membrane electrode assemblies (MEAs) at large scale for alkaline and anion exchange membrane (AEM) water electrolyzers used in green hydrogen production. Its PGM-free, catalyst-coated membranes use eco-friendly, low-cost materials and operate at low KOH concentrations to produce high-purity hydrogen for the clean energy sector.
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
Hyperdrives manufactures electric drive systems for automotive, aerospace, maritime, and industrial applications that offer improved efficiency, reduced cost, and smaller form factors. The company's technology enables longer vehicle range, extended flight times, greater energy output, and novel vessel designs while using fewer raw materials and rare earth elements.
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
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
IBC develops advanced lithium-ion batteries and intelligent battery systems, including Nyaya AI, a physics-aware analytics platform for lithium-ion manufacturing and lifecycle performance. The platform improves process control, yield, and first-pass quality while predicting battery state metrics (SoC, SoH, SoP), remaining useful life, and warranty risk.
2 investors
ICE operates regulated futures exchanges and clearing services that enable derivative trading across multiple asset classes including energy, fixed income, currencies, and metals. The company provides trading platforms and data services to financial market participants globally.
2 investors
IKE provides data acquisition and structural analysis tools for managing overhead power and communication infrastructure, including pole inspections, pole loading analysis, make-ready engineering, and joint use management. It serves electric utilities, engineering firms, and communications companies, primarily in North America.
2 investors
Immensa provides end-to-end digital spare parts inventory solutions for the energy sector, combining AI-powered inventory assessment, digital inventory management, and localized on-demand advanced manufacturing. It serves asset-intensive industries such as oil & gas, petrochemicals, and power generation.
2 investors
Imperative Chemical Partners is the largest privately held oilfield chemical services company in North America, providing specialized chemistries and application methodologies for exploration & production and midstream operators in oil and gas basins. The company leverages in-house manufacturing, blending, R&D, and product technology capabilities to deliver chemical solutions tailored to the unique requirements of energy sector clients.
2 investors
Impulse Labs develops a battery-integrated platform for home appliances that delivers high power from standard 120V outlets, enabling cooktops and other appliances with professional-grade performance without electrical upgrades. The platform includes power electronics, battery management, sensors, and cloud connectivity software that appliance manufacturers integrate into their products.
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
Infrastructure Networks provides services to the oil and gas industry.
2 investors
Infoport develops infrastructure for large-scale compute, with a team drawn from data centers, energy infrastructure, hyperscalers, capital markets, and defense.
2 investors
Inicio works alongside low-carbon energy producers to identify and secure viable land for renewable electricity projects, support grid connection, and co-develop or develop solar and storage projects for investors. It focuses on solar power development, including a stated interest in mature projects in Italy.
2 investors
INITION develops a patented controlled-structure electrode production technology for lithium-ion battery manufacturing, increasing energy density and fast-charging while eliminating toxic solvents (NMP) and PFAS. The chemistry-agnostic process works across cylindrical, prismatic, and pouch cells and targets both emerging and established battery manufacturers.
2 investors
Wellbore Tech develops imaging technology for the oil and gas sector, drawing on expertise in both energy and medical device development.
2 investors
Innovatium is a technology company that develops solutions for decarbonizing industry, with its flagship PRISMA technology designed to reduce carbon emissions across operations.
2 investors











