Energy Startups
5,102 companies tagged Energy, with their investors and founders.
Hydro Wind Energy develops AI-enabled offshore wind systems that generate dispatchable renewable power, mechanical energy storage, and desalinated water. The company targets the global energy and AI infrastructure markets by combining offshore wind platforms, floating data centres, and subsea desalination technology.
1 investor
Hydrogen in Motion develops solid-state hydrogen storage solutions to enable clean energy adoption across multiple industries. The company focuses on safe, lightweight, and scalable technologies for storing and deploying hydrogen fuel.
1 investor
Hydrogen Optimized builds RuggedCell alkaline electrolyzers based on Stuart unipolar technology, designed for durability of 25+ years without stack replacements and to withstand renewable power start/stop cycles. The company targets mega-scale hydrogen production projects and operates a manufacturing facility in Owen Sound.
1 investor
Hydrogen Refinery produces carbon-negative e-fuels and e-fertilizer from mixed and non-recyclable waste using its Plasma Electrolyser System, with projects including a waste-to-SAF plant at Farnborough Airport, a waste-to-urea fertilizer plant in Bali, and a marine fuels feasibility study in Scotland. It serves aviation, agriculture, and maritime markets by converting waste into fuels such as SAF, e-methanol, and ammonia and into nitrogen fertilizers.
1 investor
Hydrogenera is a publicly listed entity in Bulgaria that provides investor relations documentation and financial disclosures under Bulgarian regulatory requirements.
1 investor
Hydrogenious LOHC Technologies develops liquid organic hydrogen carrier (LOHC) infrastructure that stores and transports hydrogen in liquid form under ambient conditions using conventional fuel infrastructure, targeting hydrogen producers and industrial and mobility offtakers. The company builds industrial-scale storage and release facilities, including LOHC hubs across Central Europe and Germany.
1 investor
HydroLogiq operates Logiq, a software platform for off-grid clean energy operators that unifies telemetry from BESS, solar, generators and fuel storage into one view and adds AI alerts, fuel management and customer reporting. It serves clean energy asset and fuel operations teams, offering automated monitoring, forecasting and CO2e reporting.
1 investor
Hydrolux develops compact hydrogen storage systems using metal alloy technology that enable efficient, safe storage and controlled release of hydrogen for energy applications.
1 investor
Hydro Resources is a groundwater services contractor offering extraction, development, and maintenance solutions to agricultural and municipal clients across the central and western United States. The company operates through six regional facilities and serves projects of varying scale and complexity.
1 investor
Hydros Power manufactures the STELION Booster Station, a compact electric hydrogen compressor designed for applications including vehicle refueling, laboratory gas supply, and industrial processes. The company serves hydrogen project developers, industrial operators, and integrators seeking modular gas compression solutions.
1 investor
1 investor
HyET group is a collection of companies developing technologies for commercially viable, large-scale use of decentralized renewable energy sources, such as high-pressure hydrogen buffering of solar and wind power and low-cost roofing sheets with integrated solar modules. Its work also targets environmentally sustainable economic development and rural poverty reduction.
1 investor
HYGN develops hydrogen technologies designed to reduce fuel costs and emissions for federal, municipal, and private companies. The company's flagship product enables safer, simpler hydrogen harnessing.
1 investor
Hynfra is a Polish company that develops, designs, and integrates green hydrogen and ammonia energy projects, acting as project developer, system designer, technology integrator, and executor. It serves industrial clients and municipalities with feasibility studies, renewable ammonia and hydrogen production facilities, decarbonization projects, and energy storage services, with operations in Poland and Germany and projects across Egypt, Jordan, Mauritania, Greece, Oman, and Ukraine.
1 investor
HES Energy Storage is a Polish developer and system integrator of battery energy storage systems (BESS), offering Storage as a Service including project development, construction management, and proprietary EMS and autobidder software. It serves industrial facilities, renewable energy developers, municipalities, commercial property owners, and the transport sector with grid stabilization and energy revenue optimization.
1 investor
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.
1 investor
Hyperion Energy develops an industrial carbon recycling system that captures and converts stack emissions directly at the source for heavy industry applications like power generation, cement, and manufacturing. The containerized system converts emissions into valuable materials and is net carbon negative.
1 investor
HyReveal explores subsurface resources such as natural gases, natural hydrogen, and helium to support energy transition and sovereignty goals. The company focuses on geology and natural resource exploration in the energy sector.
1 investor
Hyroad Energy develops hydrogen infrastructure and energy supply solutions for the transportation sector. The company builds hydrogen production, refueling stations, and low-carbon energy systems to support zero-emission vehicle adoption.
1 investor
Hystar develops PEM electrolysers for hydrogen production, using a patented design that combines fuel cell industry technology with electrolyser technology for higher efficiency and safety. It offers a portfolio of systems (EOS, Vega, Orion) for projects of varying sizes and is building GW-scale electrolyser manufacturing.
1 investor
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.
1 investor
IBIS Power develops PowerNEXT, a modular rooftop energy system that combines wind turbines nested within solar panels to generate on-site solar and wind power. It targets owners and managers of mid- and high-rise buildings with high energy needs, helping them meet local energy-production regulations such as BENG, ESG, and Fit for 55.
1 investor
Icarus RT develops hybrid photovoltaic/thermal solar-plus-storage systems aimed at increasing power output while reducing physical footprint. The company operates as a cleantech research and development startup focused on solar energy solutions.
1 investor
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.
1 investor





