Cleantech Startups

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.

16 investors

Exowatt builds modular clean energy infrastructure systems designed for 24/7 solar power generation, targeting global AI infrastructure and critical industries that require reliable, ultra-low-cost sustainable power. The company manufactures its systems in the United States.

15 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.

15 investors

Aerones provides robotic inspection, cleaning, coating, and repair services for wind turbine blades. The company serves wind park operators in the renewable energy sector.

14 investors

Beyond Aero develops electric business aircraft using hydrogen propulsion, designed to achieve range exceeding 800 nautical miles for aviation markets.

14 investors

Bloom Energy manufactures solid oxide fuel cell systems for onsite power generation at commercial, industrial, and data center facilities. The company serves enterprises and infrastructure operators seeking reliable, resilient power with lower emissions.

14 investors

Cleancult produces cleaning products in recyclable, paper-based refillable bottles with transparent, non-toxic formulas. The company targets consumers seeking sustainable household cleaners as an alternative to conventional plastic-packaged products.

14 investors

David Energy builds technology to enable electricity grids powered by 100% clean, renewable energy. The company serves residential and business customers seeking to transition away from fossil fuel-dependent electricity systems.

14 investors

Intramotev develops battery-electric retrofit technology for rail transportation, converting traditional railcars into independently-moving, self-propelled vehicles that reduce operational costs and emissions.

14 investors

PlanetFWD offers a sustainability management platform that measures carbon footprints across Scopes 1, 2, and 3, automates life cycle assessments, and helps companies model emissions reduction strategies. It targets consumer goods businesses preparing for compliance frameworks like CSRD, CDP, and SBTi, and supports carbon labeling and impact reporting.

14 investors

TIER operates a shared electric micromobility service (e-scooters and related vehicles) available in over 400 cities across Europe and the Middle East. Founded in 2018 and merged with Dott in 2024, the company runs its operations in-house with a focus on safe, low-carbon urban transport.

14 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.

14 investors

Zypp Electric is an India-based EV rental platform that rents electric scooters and loaders to gig-economy delivery workers, providing IoT-enabled vehicles, battery-swapping infrastructure, and 24/7 support. It serves last-mile delivery riders working with platforms like Blinkit and Zepto, aiming to reduce fuel costs and carbon emissions.

14 investors

44.01 is a carbon removal company that mineralizes CO₂ 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.

13 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.

13 investors

General Fusion develops Magnetized Target Fusion (MTF) technology, combining plasma physics, mechanical compression, and liquid metal systems to build a practical, cost-competitive fusion power plant. The company operates large-scale demonstration machines, including LM26 at its Vancouver facility, on a roadmap toward a first fusion plant producing energy in the mid-2030s.

13 investors

Gradient manufactures a window-mounted 120V heat pump for residential heating and cooling that installs without drilling or refrigerant handling. The product is designed for homeowners seeking energy-efficient climate control that operates across a broad temperature range using standard electrical outlets.

13 investors

Harvest Thermal makes an all-in-one home heating, cooling, and hot water system that pairs an air-to-water heat pump with an insulated thermal storage tank and optimization software to shift electricity use to cheaper, cleaner periods. The system replaces a home's existing HVAC and water heater for residential customers, with optional whole-home air filtration and night cooling.

13 investors

it's electric installs and maintains curbside Level 2 EV chargers on partner properties in U.S. cities, using the property's spare electrical supply at no cost to the owner. The company handles curb and electrical panel analysis, permitting, and maintenance while property owners earn passive income.

13 investors

Kadeya operates a closed-loop beverage system that autonomously bottles filtered water and flavored, sparkling, or branded drinks on demand at vending stations, then collects the reusable glass and stainless steel bottles for cleaning and reuse. It targets workplaces, including construction sites, to improve worker hydration and safety while eliminating single-use plastic waste.

13 investors

20tree.ai (operating as Overstory) provides AI-powered vegetation intelligence for electric utilities, combining satellite and aerial imagery with local asset data to optimize vegetation management programs. The platform helps utilities reduce costs, manage risk from tree encroachment and wildfires, and improve grid reliability through data-driven decision-making.

13 investors

13 investors

ZeroAvia develops hydrogen-electric powertrain technology for aircraft, aiming to enable zero-emission aviation. It operates in the aerospace and clean transportation sector.

13 investors

Ateios develops electrode manufacturing techniques designed to accelerate production speed, reduce carbon emissions, and decrease the physical footprint of battery manufacturing and gigafactories. The company provides advanced battery, materials, and software solutions to battery manufacturers.

12 investors