Cleantech Startups
5,230 companies tagged Cleantech, with their investors and founders.
Commonwealth Fusion Systems develops commercial fusion power plants using high-temperature superconducting magnet technology to provide grid-scale energy.
30 investors
Lime operates a shared micromobility service offering short-term rentals of electric bikes and scooters. It serves urban riders across more than 230 cities in nearly 30 countries.
26 investors
Bird operates a shared electric scooter and e-bike service designed to reduce car trips and emissions in urban environments across multiple continents.
25 investors
Zipline operates a drone delivery service for rapid order fulfillment, with a focus on maintaining product temperature integrity during transit. The company serves customers seeking same-day delivery while maintaining zero emissions.
25 investors
Base Power provides residential battery systems and retail electric provider services to customers in Texas. The company develops battery storage solutions certified under UL safety standards and offers electricity supply services through its licensed retail electric provider operations.
22 investors
Solugen develops a biomanufacturing platform using fermentation and bioprocessing technology to produce specialty chemicals at scale. The company serves customers in energy, chemicals, and related industries with cost-effective alternatives to traditional petrochemical-based manufacturing.
21 investors
Entrepreneurs First is an accelerator and founder community that identifies and supports talented individuals from academic institutions and tech communities globally to become founders. It provides cohort-based learning, mentorship from specialist advisors, and access to a network to accelerate early-stage company building.
17 investors
REGENT designs and manufactures Seaglider wing-in-ground-effect aircraft for regional coastal transportation and defense logistics, offering high-speed zero-emission travel between coastal cities and military applications.
17 investors
Twelve transforms CO2 into chemicals, fuels, and materials through carbon transformation technology. The company targets industrial applications in the chemical and energy sectors.
16 investors
Fervo Energy develops next-generation geothermal technology using advanced drilling and sensing techniques to unlock carbon-free, 24/7 power generation in previously uneconomic locations.
15 investors
Form Energy develops and manufactures low-cost, multi-day iron-air battery systems for long-duration energy storage on the electric grid, serving utilities and project developers primarily in the United States. Founded in 2017, it has begun expanding internationally with its first project in Ireland.
15 investors
Andrena is a wireless Internet service provider that delivers high-speed connectivity to multi-tenant buildings and households using wireless technology beamed to building roofs, then distributed wirelessly to units. The company serves building owners, tenants, and residential customers seeking affordable Internet alternatives to traditional cable and fiber infrastructure.
14 investors
Natilus develops next-generation blended wing body aircraft for commercial cargo and passenger operations, designed to improve fuel efficiency, reduce emissions, and increase payload capacity. The company is based in San Diego, California and offers two product lines: KONA for freight and HORIZON EVO for passenger travel.
13 investors
Omnidian provides post-installation care and performance protection for solar and clean energy investments, focusing on the service experience after systems are installed. It serves solar system owners and clients seeking to protect and maintain their clean energy assets.
13 investors
Planet FWD offers software that turns supply chain data into insights to help brands measure and reduce their environmental impact and work toward net zero. It serves companies seeking sustainability compliance and improvements in carbon and climate management.
13 investors
SPAN develops smart electrical panels that provide real-time home energy monitoring and control, enabling homeowners to track and optimize energy consumption at the room and appliance level to reduce energy bills.
13 investors
Unspun develops 3D weaving technology and software for apparel and textile manufacturing, enabling fast, automated, and low-waste garment production for brands and manufacturers. The company positions its Vega system as a solution for local, on-demand production that reduces carbon emissions from fashion.
13 investors
44.01 is a carbon removal company that mineralizes COâ‚‚ by using natural processes to permanently convert captured carbon dioxide into rock. It positions its work as part of the energy transition and climate change mitigation.
12 investors
Apeel Sciences develops plant-based coatings derived from fatty acids and glycerides—ingredients naturally found in plant peels and seeds—that are applied to fresh fruits and vegetables to extend shelf life, preserve flavor and nutrients, and reduce reliance on refrigeration, pesticides, waxes, and plastics. The company serves produce suppliers and retailers seeking sustainable solutions to reduce food waste across the supply chain.
12 investors
CleanFiber manufactures cellulose-based insulation from recycled newsprint for the building materials industry. The company produces and distributes residential and commercial insulation through a production facility in Buffalo.
12 investors
EarthGrid uses patented plasma-powered boring machines to tunnel and excavate through hard rock via thermal spallation, without drilling chemicals, at lower cost and faster speeds than traditional methods. The company aims to build underground infrastructure and a more resilient electrical grid ("SuperGrid").
12 investors
Panthalassa is building a planetary-scale clean energy platform designed to meet global energy demand through offshore deployment with zero emissions at ultra-low cost.
12 investors
Phoenix Tailings develops clean technology for rare earth element refining in the United States. The company operates across the full value chain, from mining and recycling to separation and magnet production.
12 investors
Proxima develops stellarator fusion power plants designed to deliver clean, grid-ready electricity. The company builds on stellarator research to commercialize fusion energy for global power generation.
12 investors