Energy Startups

Accenta provides energy and carbon performance services for real estate buildings, combining AI-driven building management with heating and cooling production from geothermal energy and hybrid geo-storage. It serves investors, property owners, asset managers, local authorities, social landlords, and developers in France, offering audit, design, construction, operation, and financing to reduce energy consumption and CO₂ emissions.

2 investors

Active Power designs and manufactures flywheel-based uninterruptible power supply (UPS) systems and turnkey power solutions for enterprise customers requiring critical power protection. The company serves operations across more than 50 countries with manufacturing based in Austin, Texas.

2 investors

AED builds solid-state, long-duration thermal batteries that store electricity as ultra-high-temperature heat and release it on demand as power, heat, or both, allowing wind and solar to provide dispatchable baseload energy without combustion. Its modular 10MWh systems target utilities and grid operators, industrial plants, ports and logistics, refineries, microgrids, and off-grid communities.

2 investors

Aerem is a "FinTech for CleanTech" group that runs a digital lending platform and B2B marketplace to finance and supply rooftop solar in India, serving businesses, homeowners, and solar EPC companies. Through its RBI-licensed NBFC NetZero Finance it provides solar loans and supply chain finance, while its SunStore platform offers solar equipment procurement.

2 investors

Aevy builds software for the renewable energy industry, developed by a team with backgrounds in energy operations, asset management, and AI. Its product targets companies in the renewable energy sector.

2 investors

Agrisoma develops Carinata, a non-food crop used to produce low-greenhouse-gas renewable biofuels. It focuses on supplying sustainably sourced feedstock for the biofuel industry.

2 investors

AI Driller provides a cloud-based operations platform for drilling and completions teams to plan, engineer, monitor, and execute wells in a single interface. The platform consolidates drilling, directional, casing, and inventory data with real-time analytics and reporting tools for oil and gas operators and drilling contractors.

2 investors

Aidon provides smart metering systems and services for the energy sector, including IoT connectivity, smart energy devices, and smart grid intelligence. It also offers expert services and software for managing field work processes.

2 investors

Alicia Bots develops autonomous robotic systems for hull maintenance and inspection in maritime and offshore industries. The company's RoverClean robots perform non-abrasive cleaning to reduce fuel consumption, emissions, and operational costs while eliminating diver risks and chemical pollution.

2 investors

Allegro Energy develops long-duration flow batteries using a water-based microemulsion electrolyte made from common, globally available materials for grid and industrial energy storage. The batteries are manufactured in Australia and marketed as non-flammable, recyclable, and lower-cost at long durations.

2 investors

Alsym Energy develops non-flammable, high-performance sodium-ion batteries for energy storage applications. The company serves the energy storage market with an American-made alternative to lithium-ion technology.

2 investors

Altaeros designs and manufactures autonomous tethered aerostat systems, controlled by its Aerostat Autopilot software, for commercial and government applications including telecommunications, border security, and defense surveillance. Spun out of MIT in 2010, the company deploys aerostats in the US and internationally, offering products such as the SuperTower aerial cell tower and the ST-400 multi-mission aerostat.

2 investors

Altex Energy operates a crude by rail transportation system that moves crude oil, natural gas liquids, condensates, and related products across North America. The company serves oil and gas producers and distributors seeking pipeline alternative logistics within Canada, the US Midwest, and the US Gulf Coast.

2 investors

AMMP offers a platform for commercial and industrial (C&I) solar operators that combines technical monitoring, commercial tracking, and stakeholder reporting for distributed solar and battery portfolios. It provides real-time site dashboards and performance analytics to help developers monitor and optimize clean energy assets.

2 investors

Ampd Energy makes the Enertainer, a connected battery energy storage system designed to replace diesel generators for power on construction sites and other demanding environments. The product aims to cut site CO2 emissions, fuel costs, noise, and safety hazards while providing reliable portable power.

2 investors

AmpliSi develops porous silicon battery anode material using a proprietary silane-free, low-temperature magnesiothermic process that converts silica into high-energy silicon anodes to replace graphite in lithium-ion batteries. It targets battery manufacturers and research partners, primarily for electric vehicle and energy storage applications.

2 investors

Anesco develops, builds, operates and optimises grid-scale solar and battery storage assets, and provides energy efficiency services to UK utilities, local authorities and social housing through the ECO scheme. It serves renewable energy investors and works across the UK and northern Europe including Ireland, the Netherlands, Denmark and Belgium.

2 investors

ANNEA provides an AI-powered predictive maintenance and asset optimization platform for renewable energy assets such as wind turbines, using only 10-minute SCADA data without additional hardware. The brand-agnostic software detects and diagnoses underperformance to reduce operational costs, extend component lifetime, and increase energy production for renewable energy operators.

2 investors

Anzen makes a solid-state, thermoelectric climate control system that provides heating, cooling, and fresh air on a per-room basis without refrigerants, compressors, or outdoor units. The plug-and-play wall units are designed for quick retrofit in space-constrained UK homes such as flats, maisonettes, and terraced houses.

2 investors

Apix Analytics builds compact, field-ready gas analysis instruments that deliver real-time measurement for applications such as natural gas, biomethane, hydrogen, and pollutant analysis. Founded from a collaboration between CEA-LETI and Caltech, it serves energy and industrial customers through a global network of integrators and distributors.

2 investors

Applied Impact Robotics builds robotic systems for in-service inspection of crude oil storage tanks, allowing inspections without shutdowns or human entry into hazardous, sludge-filled tanks. The technology serves the oil and gas industry, aiming to reduce inspection costs, improve safety in line with API653 standards, and lower environmental impact.

2 investors

Xpansiv (formerly APX) operates an integrated platform for trading, tracking, and monetizing energy and environmental commodities, including renewable energy certificates, carbon credits, and clean fuel credits. It serves financial institutions, corporations, governments, and power producers, offering trading, brokerage, registry, and wholesale power services worldwide.

2 investors

Aqua-Cell Energy develops a saltwater flow battery that stores energy by pumping salt-water electrolyte through a battery stack, targeting affordable long-duration (12h+) grid energy storage. It serves municipal electricity distributors, commercial and industrial facilities, microgrids, remote communities, and backup power applications with a modular, container-sized system.

2 investors

AquaLith manufactures next-generation batteries and battery materials, developing new material chemistries that increase energy density and reduce charging time for consumer electronics and electric vehicles. The technology aims to be safer, less expensive, and effective at very low temperatures.

2 investors