Cleantech Startups

1KOMMA5° provides home energy systems that combine solar panels, heat pumps, battery storage, and EV wallboxes, coordinated by its Heartbeat AI software to optimize electricity use and offer dynamic pricing. It serves homeowners in Germany and across Europe through a network of regional installation partners, showrooms, and maintenance services.

6 investors

75F provides IoT-based building management systems combining hardware and software to optimize energy efficiency and indoor air quality in commercial buildings. The company's smart HVAC solutions deliver demonstrated energy savings of 30-50% and support building certifications including LEED.

6 investors

Aepnus is developing a sulfate recycling process that regenerates chemicals on-site from sodium sulfate waste, with a planned demonstration-scale plant designed to process over 500 tonnes of sodium sulfate annually. The technology targets industrial customers seeking on-site chemical regeneration and waste valorization.

6 investors

Airloom engineers next-generation utility-scale wind turbines designed for mass production and deployment in diverse locations, offering low-cost, reliable energy generation with reduced infrastructure requirements.

6 investors

Alt Mobility provides electric vehicle leasing and asset management services for businesses and individuals in India. The company focuses on affordable, zero-emission transportation to support sustainable mobility.

6 investors

Ammobia develops a novel ammonia production process that operates at low pressure and low temperature, achieving record-setting conversion rates. The company serves industrial customers in the energy and chemical sectors looking to decarbonize ammonia production.

6 investors

Ample builds a modular battery-swapping technology that delivers a full charge to any electric vehicle in under five minutes using lego-like swappable battery modules, without requiring carmakers to redesign their cars. Its lightweight stations can be deployed quickly across a city and can capture wind and solar energy for delivery to vehicles.

6 investors

Anaphite develops a dry battery electrode manufacturing technology that combines electrode materials into a single engineered "Dry Coating Precursor" (DCP) powder optimised for high-speed dry-coating production lines. It works as a development partner with battery OEMs, cell manufacturers, equipment makers, and material suppliers to cut costs and emissions in electrode production.

6 investors

Applied Carbon develops technologies to regenerate soil and sequester atmospheric carbon for climate change mitigation and soil health improvement. The company operates at the intersection of agriculture, climate science, and industrial manufacturing.

6 investors

Avantium develops innovative plant-based materials designed to replace fossil fuel-derived chemicals and advance the transition to a circular economy. The company serves the chemical industry by enabling de-fossilization through sustainable material alternatives.

6 investors

Bedrock Energy develops drilling technology and data algorithms for designing and installing geothermal borehole fields used for building heating and cooling. It serves real estate developers, building owners, and builders, offering end-to-end geothermal projects including design, drilling, and energy financing.

6 investors

Carbon Engineering is a Direct Air Capture (DAC) technology company, founded in 2009, that develops systems to capture large volumes of CO2 directly from the atmosphere. It operates as a subsidiary of Occidental's Oxy Low Carbon Ventures, advancing core DAC technology at its Innovation Centre while sister company 1PointFive handles commercial-scale plant deployment.</parameter> <parameter name="founders">[]

6 investors

Circ develops recycling technology that breaks down textile waste, including poly-cotton blends, to recover fibers for producing new materials such as pulp used by fiber manufacturers and apparel brands. The company partners with fiber producers and fashion brands to enable circular production of clothing.

6 investors

Circe uses a proprietary aerobic gas fermentation process to convert point-source CO₂ emissions into carbon-negative molecules that are drop-in equivalents of ingredients used in food, chemical, and fuel manufacturing. It serves industrial manufacturers across sectors and operates a pilot gas fermentation plant.

6 investors

Civ Robotics manufactures autonomous marking robots (CivDot+/CivDot) that use laser precision to stake construction points on job sites. The company serves engineering, procurement, and construction (EPC) firms working on solar farms and renewable energy projects.

6 investors

Cocoon develops low-carbon construction materials, including LoopCem, a supplementary cementitious material (SCM) made by valorizing electric arc furnace (EAF) steel slag to reduce concrete emissions. It serves the construction and cement industry with the aim of enabling net-zero building.

6 investors

Cogo provides carbon insights and electrification platforms to help home and car owners transition to clean energy and reduce costs, partnering with financial institutions to deliver climate technology solutions.

6 investors

Coral provides software that lets HVAC and home electrification contractors turn utility and government rebates into instant upfront discounts, handling eligibility validation, rebate filing, and follow-ups. The platform pays out rebate funds within one business day of installation and integrates with ServiceTitan, serving contractors and their residential customers on projects like heat pumps.

6 investors

Coreshell develops silicon-based battery materials using metallurgical silicon, an unprocessed natural form of silicon, as a lower-cost anode material for EV batteries. The company positions its technology as a more economical alternative to synthetic silicon for scaling energy storage.

6 investors

CREW is a Yale spinout that adds calcium carbonate (ground limestone) to wastewater treatment plants to intensify biological treatment, cut chemical costs, and permanently remove carbon dioxide. It serves municipal and industrial wastewater utilities while also selling verified carbon removal to corporate carbon buyers.

6 investors

Daanaa develops programmable Power Transaction Unit (PTU) technology, including power systems-on-a-chip and power systems-on-a-module, that performs power electronics functions and data transmission in a single module. It sells to OEMs across solar (PV, BIPV, VIPV), automotive, energy storage, and data centre power system markets.

6 investors

Earthodic develops bio-based coatings for the paper industry that can be applied using existing equipment, helping companies transition to circular production models. Its customers include paper manufacturers, paper coaters, packaging companies, and consumer brands.

6 investors

EcoG develops an AI-enabled operating system and software solutions for electric vehicle charging infrastructure, optimizing energy flow and system reliability for fleet operators and charging network providers. The company bridges EV platforms, charging equipment, grid systems, and business processes to maximize uptime and emissions reduction across the global EV charging ecosystem.

6 investors

Electric Hydrogen develops hydrogen production technology to support decarbonization. The company serves industrial customers seeking low-carbon molecular production.

6 investors