Energy Startups

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 installs and sells heat pumps, selecting suitable systems for each customer's situation and offering monitoring and optimization to improve performance. The company serves the Dutch market and focuses on residential heating solutions.

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

Helios is Africa-focused private investment firm founded in 2004 that manages investment portfolios across multiple sectors including climate, digital infrastructure, and sports and entertainment.

1 investor

Heliotics offers non-invasive IoT sensors for industrial monitoring, including clamp-based energy consumption tracking, environmental and air-quality measurement, material/level/waste detection, and vibration/condition monitoring of equipment. It targets manufacturing and quality-control settings such as coating, electronics, food, and pharmaceutical operations.

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

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

Henrie is a home energy service that gives homeowners personalised plans to assess, finance, install, and manage energy efficiency upgrades such as solar, battery storage, EV charging, and heat pumps. It provides home energy assessments, impartial installer quotes, financing and grant information, and an app to control connected energy technologies.

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

The Herholdt's Group is a South African wholesaler and supplier of electrical, lighting, and renewable energy products and accessories from various brands. It provides residential, commercial, and industrial solar energy solutions and operates branches across South Africa.

1 investor

Hertford Birch installs EV charging solutions on commercial properties and acts as a consulting service between property and charging industries to maximize financial returns. The company serves shopping centres, logistics fleets, and workplace offices primarily in the UK and EU markets.

1 investor

Hestiia builds electric radiators (myEko Pro®) that capture and reuse waste heat from digital computing to heat new-construction housing, helping meet France's RE2020 energy standards. It targets property developers, social landlords, and engineering firms in the French building sector.

1 investor

HeXalayer develops and supplies advanced materials—including turbostratic graphene and other carbon materials—for research and product development in electrochemistry, conductive and thermal composites, sensing, catalysis, coatings, and energy storage. It provides materials backed by analytical characterization (HRTEM, Raman, XRD, FTIR, EDS) in research quantities and custom or bulk supply for researchers, universities, national laboratories, and battery developers.

1 investor

HEXANA develops a next-generation nuclear energy solution combining high-temperature industrial heat and flexible low-carbon electricity, aimed at decarbonizing energy-intensive industries. It targets sectors such as chemicals and petrochemicals, low-carbon hydrogen and e-fuels, industrial clusters, and power grids or data centers needing dispatchable capacity.

1 investor

A European company developing a biomethane production platform that combines energy generation with waste management and agricultural product creation, delivering both renewable energy and local environmental benefits.

1 investor