Cleantech Startups
5,221 companies tagged Cleantech, with their investors and founders.
Metafin provides financing for off-grid solar energy adoption in rural India, working with local installers and EPCs to fund solar projects for micro-businesses and households. It offers tailored loans and fast approvals to help rural customers replace diesel with solar power, operating across Uttar Pradesh, Bihar, Orissa, Jharkhand, Chhattisgarh, and Madhya Pradesh.
3 investors
Metafuels develops aerobrew®, a proprietary technology that converts green methanol into sustainable aviation fuel (e-SAF) for airlines and fuel manufacturers. Developed in partnership with the Paul Scherrer Institut, the process aims to enable large-scale, lower-cost SAF production to help the aviation industry cut carbon emissions.
3 investors
Metrobi is a delivery logistics platform that allows local businesses to book vetted drivers for same-day and recurring deliveries while maintaining control over driver selection and pricing. The platform serves bakeries, restaurants, florists, and other time-sensitive businesses that prioritize delivery reliability and customer satisfaction.
3 investors
Miterro produces bio-based, water-degradable alternatives to polyvinyl alcohol (PVA) for use in consumer and industrial products, replacing microplastics and conventional plastics. The company engineers plant waste from food production and paper-making into sustainable materials for detergent pods, food packaging, textile, and paper coatings.
3 investors
microTERRA develops functional food ingredients derived from Lemna (aquatic plants) that enhance flavor intensity, block undesirable tastes, improve mouthfeel, and integrate flavors in food products for the food and beverage industry. The company offers sustainable ingredient solutions for food formulators and manufacturers.
3 investors
A clean-tech company that recycles end-of-life lithium-ion batteries and battery manufacturing scrap using its proprietary Hybrid-Hydrometallurgy (HHM) process to recover battery-grade lithium, cobalt, nickel, and manganese for re-entry into the cell manufacturing supply chain. It works with industries and end users to lower CO2 emissions and helps them meet battery Extended Producer Responsibility (EPR) and regulatory compliance obligations.
3 investors
Modumetal develops nanolaminated metal alloys designed to outperform conventional metals on performance, durability, and sustainability. Its application-specific alloys target industrial above-surface and below-surface uses at scale.
3 investors
Modvion builds wind turbine towers from laminated wood as an alternative to conventional materials, aiming to lower carbon emissions and costs in wind power. The company operates in the renewable energy and materials sector, targeting the wind power industry.
3 investors
Mojave Energy Systems manufactures high-efficiency HVAC systems using liquid desiccant technology for commercial buildings, delivering superior dehumidification and energy savings of 30-60% compared to conventional systems. The company's ArctiDry product family includes both direct-exchange and hydronic air handling units designed to reduce latent cooling loads and extend chiller capacity.
3 investors
Monalee provided residential solar and battery storage installations to homeowners; as of September 2025 it paused all new solar and storage installations to shift its focus toward technology and support, while continuing to service existing customers' systems.
3 investors
Monaire develops AI-powered systems to redefine commercial HVAC and refrigeration, delivering improved comfort, efficiency, and sustainability. The company serves commercial facilities and proptech customers seeking eco-friendly heating and cooling solutions.
3 investors
Moonwatt develops energy optimization and management software for grid-scale operations, leveraging renewable energy storage systems. The company applies its team's decade of experience deploying solar and battery systems across continents to build grid infrastructure software.
3 investors
Motmot develops robotic systems to modernize how cities and water utilities manage and monitor their water infrastructure. The company uses aquatic robots and AI-driven technology to address water asset management challenges.
3 investors
Naco develops PVD high-speed magnetron sputtering nano-coatings for green energy components such as electrolyzers, fuel cells, and batteries, including bipolar plates, porous transport/gas diffusion layers, and catalytic coatings on PEM and AEM hydrogen technologies. The coatings improve durability, prevent corrosion and hydrogen embrittlement, and reduce use of noble materials, and are designed for mass production.
3 investors
Natel Energy develops FishSafe turbine runners for hydropower plants, available in Francis, Kaplan, and propeller configurations that retrofit into existing civil works to improve efficiency while enabling high through-turbine fish passage survival. The company serves grid operators and hydropower asset owners aiming to modernize aging fleets and meet environmental fish-passage mandates.
3 investors
NRN appears to operate a smart grid or energy program that pays participating hosts a monthly "Smart Grid Credit" applied directly to their bill, with quarterly reviews to adjust payments to market rates. The page provides limited detail beyond this host-payment model.
3 investors
Naturbeads develops biodegradable cellulose microspheres to replace microplastics in consumer products such as cosmetics and paints. The company serves manufacturers in the personal care, cosmetics, and industrial coatings sectors, operating in the sustainable materials and circular economy space.
3 investors
NBD Nano develops advanced coatings, additives, and adhesives using nanotechnology to enhance product surfaces across various industries. The company applies chemistry innovations inspired by nature to create specialized material solutions for electronics, automotive, energy, and biomedical markets.
3 investors
Nectar builds a utility intelligence platform that aggregates energy consumption data from utility bills and online portals to help companies optimize their energy usage and costs. The platform serves organizations seeking to reduce their energy spend and carbon footprint by providing the data infrastructure needed to identify cleaner energy sources and better rates.
3 investors
Generac makes home generators, portable power products, and energy storage systems for emergency and backup power. The company serves homeowners with products for backup power, energy storage, and on-the-go power needs.
3 investors
New Motion Labs is a mechanical engineering IP licensing company that develops and licenses its Enduo sprocket tooth profile to sprocket manufacturers, using dual-point tooth engagement to extend chain drive life and reduce energy losses. The technology is retrofittable to existing chain drive applications.
3 investors
Newterra designs and provides modular water, wastewater, and environmental treatment systems for municipalities, industries, small communities, and developers, covering the treatment lifecycle from design and project management to technical support and parts. The company has been acquired by Grundfos, a global water technology company.
3 investors
nT-Tao develops compact 20 MWe fusion systems, marketed as Tao Energy Boxes, designed to provide distributed, 24/7 firm on-site power on or off the grid. It targets energy-intensive infrastructure such as datacenters and AI power, maritime and ports, national and critical infrastructure, and EV fleet charging.
3 investors
Nuclear Turbines develops advanced modular nuclear generation systems in which a reactor directly heats compressed air to drive a commercial gas turbine, targeting low-cost electricity. It aims to serve markets with high power demand such as AI, advanced manufacturing, and strategic industry where electricity cost is a growth constraint.
3 investors