Energy Startups

Float Energy provides digital twin software for the hydrogen industry, integrating real-time forecasts of power prices, renewable generation, and CO₂ grid intensity to optimize green hydrogen production for lower cost and higher sustainability. Its OPTI-MATE platform is aimed at hydrogen producers.

1 investor

Floatech develops high-performance silicon anodes for lithium-ion batteries, targeting leading-edge technology industries. The company's patented manufacturing process delivers up to 10 times better performance than traditional graphite-based batteries while improving sustainability and eliminating battery deterioration.

1 investor

Flui provides industry process and dataflow management software for the energy and water markets, handling messaging and record processing for meter points. It also offers energy flexibility optimisation software for smart grids and distributed generation.

1 investor

Fluid Clarification designs and supplies filtration and separation systems that remove liquids and solids from gas or liquid streams for industrial plants. It serves industries including oil and gas, oil sands, refining, water treatment, petrochemical, pulp and paper, and pharmaceutical, offering engineered systems, vessel upgrades, and rental filtration vessels.

1 investor

Fluitron engineers and manufactures diaphragm compressors, high-pressure technologies, hydrogen dispensers, and pressure vessels, along with turnkey compression, storage, and dispensing systems. It serves industrial gas, specialty gas, and hydrogen customers across the Americas, Asia, Europe, and the Middle East, and provides lifecycle service, maintenance, and spare parts.

1 investor

Flux Lines offers floating, mobile shore power for ships in ports alongside grid-scale energy storage services to local power grids. The company targets maritime electrification, providing an alternative to fixed dockside charging infrastructure.

1 investor

FlyORO builds modular, last-mile blending technology for sustainable aviation fuels (SAF), aimed at optimizing SAF supply chains and making blending more affordable and accessible. It serves the aviation fuel industry with a system that allows SAF to be blended closer to the point of use.

1 investor

Flywheel provides a building operations platform for facility and property managers to manage maintenance teams, track preventative and ad hoc tasks, and analyze energy usage. It combines a maintenance dashboard with a mobile app featuring QR and barcode scanning, and integrates data from multiple sources to deliver insights on team performance, energy efficiency, and tenant satisfaction.

1 investor

FMC Global Sat (MTN) provides managed satellite internet and wireless connectivity solutions, including its StarEdge multi-network system combining LEO, VSAT, 5G/4G-LTE, and near-shore Wi-Fi with automatic failover. It serves maritime, enterprise, and energy customers operating remote and offshore sites worldwide.

1 investor

1 investor

Folgrid develops agrivoltaic solutions that combine solar energy generation with agricultural production. The company offers optical lens technology (FAST), consulting services, and turnkey agrivoltaic projects for farmers and agricultural operations seeking to maximize crop yields while generating renewable energy.

1 investor

FOR EV designs, funds, installs, and manages EV charging infrastructure for organisations transitioning their vehicle fleets to electric, handling everything from site design to maintenance and optimisation. The company offers a fully-funded model with no upfront capital, targeting fleet operators in the UK.

1 investor

Foresight Group is an investment manager that builds future energy systems and resilient infrastructure by backing opportunities in technology, land, water, and decarbonised energy. The firm invests across private markets, listed strategies, and venture capital for ambitious companies in the UK and Ireland.

1 investor

Forest Energy Inc. is a Japanese company operating in the renewable energy sector, with subsidiaries and affiliates focused on forest/biomass energy. It acts as a sales agent for equipment makers such as Volter Oy and Heizomat GmbH.

1 investor

Forge Nano develops the Atomic Armor platform, based on its patented ALDˣ atomic layer deposition architecture, to apply atomically precise coatings that improve batteries, semiconductor wafers, powders, and structural components. It sells lithium-ion cells and ALD coating equipment to energy, defense, aerospace, semiconductor, and quantum hardware customers, and operates a North Carolina gigafactory for domestic lithium-ion cell manufacturing.

1 investor

Foro Energy has developed technology to transmit high-power lasers over long distances, overcoming previously limiting nonlinear physical effects. The company enables multi-kilowatt laser power transmission across multi-mile distances for industrial applications.

1 investor

Fortech provides EV charging solutions combining hardware, software, and services for e-mobility operators, including help desk, terminal and management system maintenance, and station management tools. The Italy-based company focuses on the EV charging and e-mobility sector.

1 investor

Fortescue is an Australian iron ore mining company that also develops technologies to eliminate emissions and decarbonize heavy industry, working toward "Real Zero" for its operations. The publicly listed (ASX) company operates across metals, energy, and technology.

1 investor

Fortis Energy Services provides well services, completions, and production solutions—including workover, completion and production rigs, wireline rigs, and ancillary equipment—for oil and natural gas producers across major U.S. onshore basins such as the Permian, Eagle Ford, and Haynesville. It offers full well life-cycle services covering completions, production, extended life work, and plug and abandonments.

1 investor

Forum Energy Technologies (NYSE: FET) manufactures products and engineered solutions for the energy and industrial sectors, including subsea systems, drilling equipment, production systems, pipe handling, artificial lift, and pressure control and flow management tools. It serves onshore and offshore oil, gas, industrial, and clean energy customers through brands such as Global Tubing, PBV, and Davis-Lynch.

1 investor

Fourth Power builds utility-scale thermal energy storage using liquid metal (tin) and graphite to store energy and deliver on-demand power, offering modular systems ranging from 5 to 100 hours of duration. Aimed at utilities and grid operators, the technology targets long-duration energy storage (LDES) at costs lower than lithium-ion and new natural gas, with a stated focus on the U.S. grid.

1 investor

FPR Energy develops particle-based concentrated solar thermal (CST) technology to deliver zero-emissions heat and power for industrial processes, particularly those requiring high-temperature heat above 500°C. The system uses ceramic particles to capture and store solar energy for on-demand operation up to 24/7.

1 investor

FractalEV builds Level 2 EV chargers designed for the people who install and maintain them, with functionality intended to make the hardware easy to set up and support without ongoing fees. It positions itself as a hardware OEM in the electric vehicle charging space.

1 investor

Fred. Olsen 1848 is a technology and innovation company in the renewable energy sector that develops floating offshore wind and floating solar (PV) solutions, including floating wind turbine platforms and installation and maintenance technologies. It builds on the maritime and energy heritage of the Fred. Olsen-related companies to bring new renewable energy concepts from idea to commercialization.

1 investor