Energy Startups
5,968 companies tagged Energy, with their investors and founders.
Arena Energy identifies and develops oil and gas drilling opportunities in the Gulf of Mexico. The company is staffed by experienced professionals specializing in Gulf exploration and production projects.
1 investor
Argent Energy is a European producer of second-generation biodiesel made from waste fats and oils, with annual output of around 195,000 metric tonnes. The company focuses on decarbonising transport and tracks its greenhouse gas footprint to meet sustainability standards.
1 investor
Cence manufactures direct current (DC) power systems and components for residential and commercial applications, including fault-managed power systems and related hardware.
1 investor
1 investor
Aries Clean Technologies develops gasification technology to convert biosolids and waste into renewable energy while eliminating harmful chemicals like PFAS. The company serves municipalities and industries seeking sustainable waste management solutions.
1 investor
Arigna Group converts agricultural byproducts into biochar using advanced pyrolysis technology for soil regeneration and carbon sequestration. The company serves horticulturists and operates one of Europe's largest biochar production facilities.
1 investor
Arkeon Energy adds and controls a thermal battery alongside standard heat pumps to create an "artificial geothermal" heating system for buildings, reducing heating costs and carbon emissions without drilling or replacing existing emitters. It targets social housing landlords, commercial real estate, healthcare facilities, and public authorities in France, equipping buildings of 2,000 to 60,000 m2 with installed power from 70 kW to 1.5 MW.
1 investor
Arkion provides AI-powered analytics for power grid inspection data, helping utilities detect component defects, manage vegetation, and optimize maintenance through automated analysis of drone, thermal, and LiDAR imagery. The platform integrates with asset management systems to transform unstructured inspection data into structured, actionable insights for distribution, sub-transmission, and transmission networks.
1 investor
Armada Technologies develops a passive air lubrication system for merchant ships to reduce friction and improve fuel efficiency. The company collaborates with universities, technology firms, ship operators, and financial partners in the UK, Europe, and the US.
1 investor
Arnergy provides modular, scalable solar energy systems and real-time energy management solutions for homes and businesses across Africa. The company aims to improve energy reliability and digital inclusion in emerging markets through clean, affordable renewable energy.
1 investor
ArquiLED develops smart city solutions for municipalities, including public lighting systems and digital urban platforms for energy consumption reduction and asset management. The company serves cities and local governments, primarily in Portugal, and operates a dedicated R&D center, Bright Science, focused on smart city technologies.
1 investor
Arra builds software for acquiring renewable energy infrastructure, providing verified data and due diligence tools to speed up asset transactions and deal closings. It serves participants in renewable energy asset deals.
1 investor
Arrival consolidates a household's utilities — electricity, gas, water, broadband, and council tax — into a single monthly bill, automatically finding the best tariffs and applying eligible discounts. It targets people moving into a new home, handling supplier communications, meter readings, and tariff switching on their behalf.
1 investor
Arteche is a publicly listed company with operations in multiple business divisions and global presence. The company manages shareholder dividends and investor relations through its investor relations team.
1 investor
Artha is an early-stage venture capital firm and renewable energy investment bank focused on India's energy transition and entrepreneurship ecosystem. The group invests in early-stage companies and provides advisory services for renewable energy transactions in India.
1 investor
ARVOS Group designs and manufactures heat exchanging equipment and provides related lifetime services aimed at improving energy efficiency for industrial customers. It operates under the LJUNGSTRÖM, SCHMIDT'SCHE, and SCHACK brands.
1 investor
Ascent Resources is a privately held oil and natural gas exploration and production company, and the largest natural gas producer in the state of Ohio. It operates in the United States energy sector, focusing on asset size and net production.
1 investor
ASF is a Japanese EV venture that designs and builds original electric vehicles from scratch to Japanese standards, including the ASF2.0 commercial light van aimed at business drivers. As a fabless company, it also offers battery leasing and total car-life support services, and works toward sustainable energy systems using renewable energy and battery/solar panel recycling.
1 investor
Ashipa Electric provides renewables-based distributed energy systems to homeowners, businesses, communities, and municipalities to help reduce energy costs and establish energy independence while maintaining reliability. It focuses on emerging markets, rural and grid-edge communities, island nations, and climate-impacted areas, with stated interest in the US and Africa.
1 investor
Ashtead Technology rents subsea equipment and provides related solutions to the global offshore energy sector, covering offshore renewables and later-life oil & gas projects. It operates through three service lines — survey & robotics, mechanical solutions, and asset integrity — offering specialist equipment and services for offshore infrastructure.
1 investor
Aslan Renewables installs modular hydropower systems beside existing dams and water-control structures in North America, converting managed water flow into always-on clean electricity for communities, industry, and grids. Its compact turbine modules are paired with an AI-enabled Remote Monitoring System for autonomous operation, predictive maintenance, and environmental compliance reporting.
1 investor
Aspen Creek Digital Corporation (ACDC) develops behind-the-meter data centers co-located with new renewable energy projects, using them as power takers for high-performance computing and bitcoin mining operations. The company aims to add renewable power to the grid, reduce power price volatility, and support local communities through tax revenue and job creation.
1 investor
ASPEQ Heating Group manufactures customized electric heating equipment and systems for industrial and commercial applications across North America. The company operates eight brands serving markets including HVAC, process heating, infrared heating, and pipe heating across railroad, power generation, oil and gas, food equipment, and other specialized industries.
1 investor
Asperitas engineers immersion cooling as a complete system architecture for high-density compute, addressing performance, energy, thermal, space, and acoustic constraints together.
1 investor





