Energy Startups

Hayzel develops technology that captures wasted potential energy from HVAC expansion valves and converts it into electricity to power cooling systems, reducing energy consumption and carbon footprint for building owners. The patented solution installs onto existing chillers without major infrastructure changes.

1 investor

Hazer Group is an ASX-listed technology company developing and commercialising the HAZER Process, a method for producing hydrogen and graphite from natural gas and other feedstocks. It operates in the clean energy and hydrogen sector.

1 investor

HB11 Energy develops laser-based boron fusion technology to generate baseload electrical power without radioactive waste or dependence on intermittent renewables. The company commercializes fusion-related laser systems and components targeting the energy sector.

1 investor

Haltermann Carless manufactures hydrocarbon-based products and solvents for automotive, life science, industrial, and energy markets. Operating across eight global locations with over 160 years of combined heritage, the company produces specialty fuels, test fuels, performance solvents, and recycled transformer oils.

1 investor

Hunter Dickinson Inc. (HDI) is a private, global mining group that acquires, develops, operates, and monetizes mineral properties, and provides management, technical, financial, and administrative services to a portfolio of mineral companies. It works across multiple commodities including gold, copper, molybdenum, silver, and diamonds, covering exploration through mine operations.

1 investor

Heat Matrix designs and builds turnkey heat recovery systems that capture waste heat from industrial flue gases, baking vapors, and warm air streams to cut energy costs and CO2 emissions. It serves industrial clients in the food & beverage, bakery, manufacturing, and chemical sectors, including those with polluting or corrosive exhaust gases.

1 investor

Heat Solutions develops an Energy Management System (EMS) controller for commercial and industrial sites with distributed energy resources. The H.E.A.T. Energy Gateway integrates batteries, solar, generators, and other equipment from any vendor to optimize energy costs, revenue from grid services, and resilience during outages.

1 investor

HEATEN builds industrial heat pumps that recover waste heat from industrial processes such as steelmaking and convert it into clean power and heat. It serves industrial clients, exemplified by a deployment for the EU HURRICANE project at ArcelorMittal in Ghent.

1 investor

Heatflow develops advanced turbine and power conversion technology to enable the trilateral flash cycle, extracting more electricity from geothermal brine at existing plants. Its approach targets the geothermal energy sector by reducing components and improving the economics of baseload clean power.

1 investor

Heatrix develops ultra-compact electric air heaters that replace gas burners in high-temperature industrial processes, reaching air temperatures up to 1500 °C using renewable electricity. Its modular power-to-heat systems and thermal energy storage serve manufacturers in sectors such as brick and building materials, steel and non-ferrous metals, glass and ceramics, and chemicals for gradual decarbonization.

1 investor

Heat Transformers provides heat pump advice and installation services for households, helping them reduce gas usage and energy costs. It focuses on the Dutch residential market.

1 investor

Hedgehog Applications develops smart and sustainable charging solutions, including wireless and adaptive technologies for electric vehicles and smart city infrastructure.

1 investor

HEG develops solar energy projects and provides related services, offering utility-scale and industrial solar installations from 100 kW to 10 MW, energy backup systems, and full development from feasibility studies through engineering, permitting, EPC and O&M. It serves utility and industrial clients across the United States, Mexico, Guatemala, Dominican Republic, Colombia, Nicaragua and Aruba.

1 investor

Heila EDGE modular energy platform connecting and optimizing distributed energy resources (Acquired).

1 investor

Helgen provides high-tech industrial maintenance, specialized cleaning, solar energy installation, and custom software development for manufacturing and industrial operations in Mexico. Services include preventive and corrective maintenance for industrial equipment, photovoltaic system design, EV charging infrastructure, and digital twin platforms integrated with industrial management systems.

1 investor

Helin provides an edge-to-cloud analytics platform for the marine and energy sectors that integrates local AI with centralized data infrastructure to optimize industrial assets. The platform helps companies reduce costs and uncover operational savings by converting static equipment like vessels, cranes, and solar panels into connected, intelligent systems.

1 investor

Heliox Energy develops portable DC fast-charging hardware for electric vehicles including cars, buses, and trucks. The Mobile product line offers plug-and-play charging units ranging from 10 kW to 40 kW that require only a standard AC outlet connection, enabling fleet operators to deploy charging capacity flexibly across depots and work sites.

1 investor

Helix Earth makes a bolt-on retrofit system for commercial building HVAC that separates humidity removal from cooling using a patented liquid-desiccant filter (Helix MICRA) derived from NASA spacecraft life-support technology, reducing energy use and equipment strain. The company also applies its liquid-gas mass transfer technology to carbon capture, rare earth extraction, industrial filtration, and atmospheric water generation.

1 investor

hellgrün offers private individuals and entrepreneurs direct ownership investments in photovoltaic solar installations, handling project development, installation, operation, and administration on the investor's behalf. The model emphasizes tax advantages (such as the German IAB) and long-term returns, and is focused on the German market.

1 investor

Hello Watt offers a free app that connects to Linky and Gazpar meters to help households in France track and reduce their energy consumption, compare electricity and gas suppliers, and switch providers. The company also acts as an RGE-certified installer for home energy renovation, heat pumps, and solar panels, handling state subsidies and works management for consumers.

1 investor

HEPACO provides environmental services and hazardous waste management, specializing in tank car operations, oil spill response, and underground storage tank removal. The company serves industrial clients in the energy and environmental remediation sectors.

1 investor

Hephas Energy develops environmentally friendly technologies and digital transformation tools aimed at supporting smart city initiatives and sustainable development. The company focuses on building efficient tools for a cleaner environment.

1 investor

HEPS manufactures hydrogen fuel cell stacks and systems for specialized mobility applications, including forklifts and construction equipment. The company offers advanced PEMFC (proton exchange membrane fuel cell) technology with modular power output options ranging from 10kW to 100kW.

1 investor

Hepta Airborne provides an AI-enhanced software platform that analyzes drone, helicopter, LiDAR, satellite, and ground patrol data to detect and score anomalies on power grid transmission and distribution lines. It serves electricity distribution and transmission system operators (DSOs and TSOs) to plan and reduce the cost of grid inspections and maintenance.

1 investor