Energy Startups

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

Galvani Power develops software-defined, modular lithium batteries for industrial and high-performance traction applications. Its battery systems emphasize configurability, scalable industrial production, and designs intended for easy disassembly, maintenance, and recyclability.

1 investor

GT develops battery simulation software for analyzing and optimizing energy storage systems across automotive, aerospace, medical, electronics, and grid applications. The company offers tools that combine multi-physics modeling with collaboration features to accelerate battery design, aging prediction, thermal management, and control strategy development.

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

Garrett Motion is a turbocharging technology company with 70 years of heritage that develops solutions for internal combustion, hybrid, and electric powertrains across automotive applications. The company manufactures turbos, electric motors, compressors, and thermal management systems for passenger vehicles, commercial vehicles, and off-highway machines.

1 investor

Gas Field Services provides site preparation, construction, and support services to the oil and gas industry across the Appalachian region. It serves conventional operators and large corporations working in the Marcellus and Utica Shale as well as coalbed methane fields in Tennessee, Virginia, West Virginia, Pennsylvania, and Ohio.

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

Gaussion develops magnetic battery-control technology that uses embedded magnetic PCBs and a control chip to guide ion movement and reduce resistance inside battery cells, helping manufacturers achieve faster charging, lower heat and longer battery lifetime. Its technology is configurable across cell formats and chemistries for industries including EVs, aerospace, robotics, drones and industrial applications.

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

A solar energy company that manufactures N-type bifacial double glass photovoltaic modules for energy systems. The company positions itself as a leading global energy solutions provider.

1 investor

GD Energy Products manufactures equipment and provides services for the energy sector, with a heritage dating back to 1859 as Gardner & Robertson.

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

A regional port in Victoria, Australia that handles containerized and bulk cargo for agriculture, construction, energy, and tourism sectors. GeelongPort operates over 90 hectares of land with 15 berths and facilitates over $10.2 billion in annual trade.

1 investor

GEHECO (Geo Heat and Comfort) develops a compact well-placement drilling system for ground-source (water-water) heat pumps, designed to install wells from a home's crawl space using a single van, a standard power socket, and a water tap. The company targets homeowners seeking to electrify home heating and operates in the sustainable heating and energy transition space.

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

Gelion develops battery technologies including a proprietary Nano-Encapsulated Sulfur (NES) cathode active material, lithium-sulfur cells, battery energy storage system integration, and lithium-ion battery recycling for the renewable energy market. The company focuses on sulfur-based energy storage that avoids reliance on critical mineral supply chains.

1 investor

Generous Energy uses AI/ML and quantitative optimization to predict and trade in short-term electricity markets, improving grid reliability and efficiency as renewable energy sources scale.

1 investor

Genser Energy builds and operates natural gas and power infrastructure, including power plants, gas pipelines, gathering and processing assets, and a port terminal, serving industrial and mining customers across West Africa. The company generates and exports power and produces natural gas liquid products, with operations concentrated in Ghana, Burkina Faso, and Côte d'Ivoire.

1 investor

Gentle Energy Corporation provides knowledge and automated tools to optimize and reduce energy consumption, aiming to make energy use more efficient and environmentally friendly. The company positions its solutions as low-barrier services that operate with minimal resources.

1 investor

Genuine Wind develops wind turbine technology with a rotor design that achieves up to 53% aerodynamic efficiency (Cp), verified by NREL. Its turbines are designed to be smaller and simpler, using less material and reducing noise and harm to wildlife.

1 investor

GEO-NET provides energy yield assessments for wind projects and urban and regional climate analyses for spatial planning, including studies that account for climate change. The company serves the wind energy sector and environmental/urban meteorology clients, with international project experience in markets such as South Africa and Chile.

1 investor