Fundraising FoxCleantech Startups
6,633 companies tagged Cleantech, with their investors and founders.
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.
34 investors
Commonwealth Fusion Systems develops commercial fusion power plants using high-temperature superconducting magnet technology to provide grid-scale energy.
31 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.
31 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.
29 investors
Bird operates a shared electric scooter and e-bike service designed to reduce car trips and emissions in urban environments across multiple continents.
27 investors
Twelve transforms CO2 into chemicals, fuels, and materials through carbon transformation technology. The company targets industrial applications in the chemical and energy sectors.
26 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.
24 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.
21 investors
Valar Atomics is developing and scaling high-temperature gas nuclear reactors for grid-independent applications including hydrogen production, data center power, and clean hydrocarbon fuel production.
21 investors
Zeno develops nuclear batteries that convert heat from decaying radioisotopes into electricity for extended-duration applications in space and deep-sea environments where conventional power sources are inadequate. The batteries are designed for frontier missions requiring reliable power without refueling or maintenance for years.
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.
18 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.
18 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.
17 investors
Heirloom operates Direct Air Capture (DAC) facilities that use limestone and carbon mineralization technology to permanently remove CO2 from the atmosphere at scale. The company combines natural limestone carbonation with engineering to create verifiable, low-cost carbon removal solutions powered by renewable energy.
17 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.
17 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.
17 investors
Pixxel builds hyperspectral satellite systems and software to monitor Earth's ecosystems, resources, and atmosphere for environmental management and climate action. The company serves decision-makers in agriculture, water quality monitoring, and sustainability sectors across the globe.
17 investors
Antares Industries develops nuclear reactor technology, with teams spanning nuclear, reactor hardware, and mission engineering as well as manufacturing and regulatory operations. The company works in the nuclear energy and deeptech sector.
16 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.
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.
16 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.
16 investors
Harbinger Motors designs and manufactures electric vehicles built on medium-duty platforms for commercial and industrial transportation. The company focuses on electrification of the medium-duty vehicle segment to provide cleaner mobility solutions for commercial operators.
16 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.
16 investors
Antora manufactures thermal battery systems for long-duration energy storage, serving manufacturers and data centers seeking to tap into low-cost renewable power. The company designs and produces American-made thermal batteries at scale to provide affordable, reliable energy storage for industrial and large-scale energy users.
15 investors