Energy Startups

ExerGo builds district heating and cooling networks that use CO₂ as a transfer fluid in a closed loop, drawing on renewable resources and waste heat to serve cities and communities. It is a Swiss cleantech company operating in the sustainable energy infrastructure sector.

1 investor

Exeri provides a turnkey monitoring system for overhead power grids that helps utilities and grid owners identify, locate, and prevent outages. The company serves electricity companies and grid operators to make power distribution more reliable.

1 investor

exnaton offers a modular, API-integrated SaaS platform that lets energy utilities launch data-driven electricity products—such as dynamic tariffs, energy sharing, prosumer tariffs, PPAs and smart EV charging—without replacing their core ERP or billing systems. It serves energy suppliers, grid operators, independent power producers and large real estate companies, primarily across Europe.

1 investor

Exodys Energy develops UPCYCLE, a proprietary technology that recycles spent nuclear fuel into secure domestic feedstock for use in today's and next-generation reactors. The company operates with a focus on closing the nuclear fuel cycle through profitable, modular commercial infrastructure.

1 investor

Expanse Electrical provides turnkey electrical solutions spanning design, engineering, procurement, construction, maintenance, and repair. It serves clients across multiple industries, emphasizing efficiency, safety, and operational sustainability.

1 investor

Exposome provides air and water treatment for the oil and gas industry, aimed at reducing pollution, meeting regulatory requirements, and enabling water reuse. Its offerings target operational efficiency, worker safety, and environmental protection in oil and gas operations.

1 investor

Extended Power provides temporary power solutions for construction and emergency job sites, including design, permitting, power distribution, generators, fueling, lighting, and equipment sales. It serves contractors and builders across residential, commercial, industrial, public, and entertainment projects.

1 investor

Eyedro provides energy monitoring hardware paired with its MyEyedro cloud platform to measure, analyze, and manage electricity, gas, and water usage in real time. It serves facility managers, sustainability officers, and homeowners with load profiling, financial forecasting, benchmarking, and ESG reporting for commercial operations and residential use.

1 investor

f3nice develops and re-engineers advanced materials, focusing on recycling metal scrap into high-quality metal powders and wires (feedstock) for additive manufacturing. It also offers sustainability assessment (LCA), circular design, consulting, and training services to companies adopting additive manufacturing.

1 investor

Face is a building services company that renovates, maintains, and retrofits professional buildings with solar solutions across France. The company focuses on energy transition and decarbonization of commercial real estate.

1 investor

Factor2 Energy develops CO2-based geothermal power technology to generate cleaner energy. The company works on geothermal and subsurface technology aimed at more sustainable power generation.

1 investor

Fanuclear develops lead-bismuth-cooled fast nuclear reactors with a compact, modular design manufactured in factory settings, offering gas-fueled power in the short term with a transition to nuclear energy. Its reactor clusters are designed to power large numbers of homes with a smaller physical footprint than comparable power sites.

1 investor

Farasis develops lithium-ion pouch cells for automotive manufacturers and other industries, manufactured at high-volume facilities using sustainable practices. The company offers the Standard Pouch Solution (SPS) as its primary product line for energy storage applications.

1 investor

Fast Sense builds nanoscale gas sensors embedded in CMOS chips for real-time detection and quantification of hydrogen, methane, CO₂ and other gas mixtures, including compact battery leak detectors, fixed-point hydrogen/VOC detectors and multi-gas analyzers. Its molecular sensing products serve operators in battery energy storage, gas pipelines, refineries, maritime/LNG, biogas digesters and electrical grid/transformer infrastructure.

1 investor

Fast Space develops components for wind turbines, including towers, air bearings, and blades, with custom design capabilities and demonstration samples available. The company also envisions future development of rocket flight systems.

1 investor

Felix provides data and analysis tools for transmission and interconnection planning in the electricity grid, serving developers, utilities, ISOs, and large energy users to accelerate project deployment while maintaining reliability.

1 investor

FENECON develops and sells energy storage systems and offers investment opportunities for both individual backers and institutional investors. The company serves the renewable energy and storage market with a focus on enabling independent, sustainable energy infrastructure.

1 investor

Fenix Energy develops metal fuels and iron recycling technology to reduce global CO2 emissions. The company operates in the cleantech and energy sectors, focusing on alternative fuel innovation and industrial recycling processes.

1 investor

Fermenstation produces ethanol by fermenting and distilling organic rice cultivated on fallow land in Oshu, Iwate Prefecture, using no pesticides or chemical fertilizers. The company operates a zero-waste circular business model, using fermentation residue as cosmetic ingredient and animal feed, with animal waste returned to fields as fertilizer.

1 investor

Fever Energy provides a software platform that energy companies use to connect distributed energy assets, manage portfolios, and generate customer and market value from flexibility. The platform predicts, optimizes, and trades energy flexibility, with applications for operating, installing, supporting, and participating.

1 investor

ProPellet produces wood pellets made from pure, sustainable wood fiber for residential heating, aimed at families seeking clean and reliable home warmth. It was formerly part of FiberBy-Products.com, alongside Coppercoin Garage, which now operates under its own website.

1 investor

Fibersail builds a retrofittable sensor system that detects small internal damage in wind turbine blades, operating independently of the blade OEM. It targets wind farm operators, helping reduce repair costs and increase turbine availability and annual energy production.

1 investor

Field builds renewable energy infrastructure to support the transition to net zero, starting with battery storage systems that store energy for use when demand is highest to create a more reliable and flexible grid.

1 investor

E-Tech manufactures economizers and waste heat recovery products — including boilers and heaters — that help companies reduce energy costs by capturing wasted heat. It builds custom-engineered equipment for new facilities and retrofits, and is the only authorized manufacturer of Kentube Engineered Products economizer replacements.

1 investor