Cleantech Startups

Aabshar develops water-saving nozzles designed to address water scarcity in developing countries, particularly in South Asia. The company's technology helps communities reduce water consumption and lower their carbon footprint.

2 investors

AB Smart Materials develops bio-based superabsorbent polymers (SAPs) for use in personal care and hygiene products as well as agricultural applications such as soil moisture retention. The company focuses on sustainable, eco-friendly polymer materials.

2 investors

Absolute Climate develops independent, science-based standards and methodologies for measuring carbon removal, separating quality assurance from credit issuance. It serves buyers and producers of carbon removal credits by verifying credit quality and matching purchases to specific mitigation claims.

2 investors

Steam Pyrolyst develops a process that converts organic and plastic waste into green hydrogen and methane at costs below €2/kg and €0.50/Nm³ respectively, using pyrolysis and steam gasification. The technology serves waste management and energy production sectors seeking low-cost, sustainable alternatives to conventional hydrogen production methods.

2 investors

Accelsius develops NeuCool, a two-phase direct-to-chip liquid cooling system for data centers that uses a non-conductive dielectric refrigerant to cool high-power CPUs and GPUs (4500W+ per socket). The technology targets data center operators and AI infrastructure, offering reduced OpEx and total cost of ownership compared to single-phase cooling.

2 investors

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

Ace Aquatec builds IoT-enabled precision products for the aquaculture industry, including acoustic wildlife deterrents, sea lice treatment, biomass estimation and real-time monitoring, and humane fish-stunning solutions. It serves seafood producers, field service partners, and offshore construction providers seeking to improve fish welfare and sustainability.

2 investors

AG Data Center builds modular, containerized edge data center infrastructure for deploying AI compute directly at remote sites such as hospitals, universities, utilities, and government facilities. The pre-engineered systems include cooling, power, security, and monitoring integrated into a turnkey package designed for rapid deployment in weeks rather than months.

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

AEInnova builds self-powered industrial IoT sensors that harvest waste heat to wirelessly monitor vibration and temperature on rotating machinery and high-temperature processes, paired with a cloud platform (DAEVIS) for predictive maintenance. It serves heavy industries such as oil & gas, steel, cement, paper, plastics and chemicals.

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

Afyren produces bio-based organic acids derived from fermentation of non-food biomass to replace petroleum-derived molecules in consumer products and industrial applications. The company serves industrial manufacturers seeking alternatives to petrochemical ingredients across sectors including food, chemicals, and materials.

2 investors

Agoprene develops a compostable, petrochemical-free foam made from seaweed and other renewable materials as an alternative to oil-based foam, initially targeting the furniture industry. The material is tested for fire safety, durability, and compostability and marketed to businesses seeking lower-impact inputs.

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

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

AiiM Partners is a venture capital firm that invests in commercialization-stage technology companies focused on resource efficiency across digital transformation, energy and power, and supply chain and logistics markets. It leads or co-leads financings, takes board seats, and targets measurable environmental and social outcomes.

2 investors

AirForestry is a Swedish deep-tech company that develops an autonomous, electric multi-drone system for airborne forestry operations such as tree thinning and harvesting, aimed at forest owners and the forestry industry. It positions its drone-based harvesting as a lower-impact alternative to conventional forestry methods.

2 investors

Airform develops a liquid-cooling heat pump that uses water instead of refrigerants to heat and cool indoor spaces, with self-guided robotic installation, onboard sensors, and app-based control. The residential climate-control unit is designed to architectural standards and is assembled in the USA.

2 investors

AirJoule develops sorption-based atmospheric water harvesting technology that extracts water from air, positioned to cool next-generation data centers and address water constraints in water-stressed regions. Its technology targets data center operators and campuses seeking permit-independent water sources.

2 investors

Airly builds MCERTS-certified air quality monitoring sensors paired with AI-powered analytics and dashboards that convert real-time pollution data into insights for local governments, schools, healthcare, energy and industry. The company operates air quality monitoring networks with over 13,000 data points across more than 50 countries to help partners meet compliance, ESG and sustainability goals.

2 investors

AirMiners runs an accelerator program, a community network, and a learning course focused on carbon dioxide removal, serving founders and individuals working on atmospheric CO2 removal. It operates in the climate and carbon removal sector.

2 investors

Chinese manufacturer of commercial kitchen air-purification and exhaust systems, offering electrostatic, UV photolysis, and water-wash oil-fume treatment equipment for restaurants, industrial parks, and other commercial facilities. Its products also include energy-saving retrofits for HVAC/air-conditioning systems.

2 investors

Alert Labs provides a water leak detection and management system for commercial buildings, using cellular-connected sensors, automatic shut-off valves, and AI-powered analysis to detect leaks and monitor temperature, humidity, and power. It offers real-time alerts and centralized data analytics to help building operators prevent water damage and reduce water use, serving customers across North America.

2 investors