Energy Startups

Furo (formerly Lumera Energy) makes hardware-agnostic software for industrial and commercial battery storage, covering project sizing, operation, forecast-based optimization, and marketing of unused capacity on energy markets. It serves battery manufacturers, project developers and installers, utilities, and commercial and industrial energy users, with a stated focus on the European market.

1 investor

FuSE designs and manages electricity-consumption data products that help electric vehicle fleet operators generate revenue from Low Carbon Fuel Standard programs. It serves operators of zero-emission trucks, buses, vans, cargo-handling equipment, and other vehicles at sites such as ports, airports, and transit agencies across California, Oregon, Washington, and Canada.

1 investor

Futra Heat develops high-temperature industrial heat pumps that deliver process steam to factories, designed to reduce energy consumption and carbon emissions. The company's flagship Greensteam series uses proprietary TurboClaw technology and can cut energy use by up to 90 percent.

1 investor

FutureBiogas develops biomethane production technology that converts organic waste into renewable gas for direct injection into existing natural gas infrastructure. The company enables decarbonization of heat and energy across industrial and utility sectors without requiring new infrastructure or equipment replacement.

1 investor

Future Industrial Services (FIS) provides industrial cleaning and decommissioning services across the UK, serving customers in the energy, petrochemical, manufacturing, utilities, and cement sectors. Following its 2023 acquisition by Augean Group, FIS operates as part of a larger waste management and specialist industrial services provider.

1 investor

Balto supports therapy adherence by providing real-time, personalized guidance to patients during their treatment journey. The company operates in the digital health space.

1 investor

FieldTwin is a unified field design platform for energy projects that enables engineers to design, visualize, and test field layouts with real-world coordinates while managing assets, pipelines, and costs in a single browser-based workspace. The platform combines design capabilities with data integration, cost tracking, and collaboration tools to replace multiple traditional CAD and design programs.

1 investor

Fyfe is an Australian engineering and environmental consultancy providing services across renewable energy, resources, transport, power and network infrastructure, water and wastewater, land development, and data centres over the full project lifecycle. Founded in South Australia, it operates nationally with over 800 people across more than 30 offices, offering expertise in electrification, planning approvals, environment, heritage, and community engagement.

1 investor

G2V builds tunable LED-based solar simulators used by researchers and engineers working in solar power, aerospace, and materials science to reproduce accurate sunlight for testing. Its products replace gas-discharge-lamp systems with LED technology aimed at precise, repeatable solar simulation.

1 investor

G4 Insights produces renewable natural gas from wood waste using a proprietary low-temperature pyrolytic process, targeting applications in power generation and transportation fuel. The company develops and operates distributed RNG production plants suited to forestry regions.

1 investor

Gaia Turbine builds a plug-and-play hydropower system based on a dual counter-rotating rotor hydraulic turbine that maintains high efficiency across a range of water flows and head jumps. The system targets small-scale hydropower sites where conventional turbines struggle, offering installation with minimal civil engineering.

1 investor

Gaian Grid is developing a platform that connects homes, apartments, and buildings into coordinated local energy networks, letting solar producers, battery owners, and tenants share and trade locally generated green electricity while participating in flexibility markets and virtual power plants. It targets property owners with solar, homes without solar, and tenants in shared buildings, integrating with Home Assistant and electricity sensors for live site data.

1 investor

Galvany designs and installs heat pumps with intelligent energy management systems for residential homes in Germany, helping homeowners reduce heating and electricity costs through modular, networked products.

1 investor

NDB develops nuclear voltaic batteries and generators that convert energy from radioactive decay into electricity using silicon carbide and liquid semiconductor transducers, producing power that can last decades to centuries without recharging. Its technology targets aerospace and defense, medical implants, critical infrastructure, electric mobility, IoT sensors, and aviation, while recycling nuclear waste into clean energy.

1 investor

Gane Energy develops Gane Fuel, a patented low-sulphur liquid fuel made from a dimethyl ether, methanol, water, and additive mixture derived from natural gas or renewables, designed as a lower-emission alternative to diesel that can be used in compression ignition engines via retrofit. It targets commerce and industry sectors reliant on diesel engines, such as shipping, trucking, construction, and mining, and is being commercialised through licensing.

1 investor

Garderos builds industrial routers designed for demanding infrastructure such as smart grids and critical infrastructure (KRITIS), with centralized fleet management, zero-touch provisioning, and long-term availability. Its devices serve utility and operational technology (OT) operators managing distributed networks, with support for 450 MHz communications.

1 investor

Gauss Fusion is a German fusion energy company developing high-field magnetic confinement fusion technology, with the goal of building an industrialized gigawatt-class fusion power plant by 2045. Founded in 2022 with European industrial partners, it collaborates with scientific institutions to commercialize fusion power plants as a grid base-load complement to renewables.

1 investor

Sweet Gazoil develops patented pyrolysis and Surface Flash Cracking technologies that convert mixed waste plastics and heavy or used/waste oils into diesel fuels and other useful products. It offers small-scale micro-refineries and processes designed to handle dirty, difficult feedstocks for waste-recycling and fuel production operations.

1 investor

GCK is a French group focused on decarbonized mobility, operating through eight interconnected companies across the mobility value chain. Its GCK Mobility subsidiary specializes in retrofitting heavy vehicles, including converting coaches to hydrogen fuel-cell power in the Auvergne-Rhône-Alpes region.

1 investor

GCL System Integration (协鑫集成) develops and manufactures solar photovoltaic products, including PV modules (such as its GPC3.0 module), mobile green energy systems, and crystalline silicon-perovskite tandem solar cells. The China-based company is part of the GCL Group and focuses on solar cell and module technology, including flexible tandem cells and PV system intelligence standards.

1 investor

GD Energy Products manufactures high-pressure pumps, including its Thunder Series and PZ-11 models, for oilfield and energy operators worldwide. The company also provides repair, on-site field service, replacement parts distribution, and equipment maintenance training through its service centers and manufacturing facilities.

1 investor

Graphenix Development Inc. (GDI) develops and manufactures patented 100% silicon anodes for lithium-ion batteries that offer greater energy density, faster charging, and improved cold performance versus graphite. It collaborates with battery and product manufacturers across industries such as defense drones, wearables, medical devices, electric vehicles, and aerospace.

1 investor

GEHECO (Geo Heat & Comfort) is developing a new method for placing the wells of ground-source heat pumps, aiming to cut costs and simplify installation even in small spaces. It operates as a B2B company serving installation and drilling companies and institutional property owners.

1 investor

Geli Energy Software develops design, automation, and management software for energy storage systems serving project developers, OEMs, financiers, and operators across residential, commercial, industrial, and utility-scale markets.

1 investor