Climate Tech Startups
3,468 companies tagged Climate Tech, with their investors and founders.
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
Neutral produces dairy products with measured and offset carbon footprints. The company measures emissions across the supply chain, partners with U.S. dairy farmers on carbon-reduction projects, and offsets remaining emissions through verified carbon credits.
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
Ocean Ecostructures builds biomimetic structures paired with monitoring and performance analysis systems to restore and regenerate marine biodiversity around maritime infrastructures. The company works to convert built maritime areas into ecologically active spaces.
3 investors
Oceano Fresco farms shellfish, including clams and the European flat oyster (Ostrea edulis), using open-sea nurseries in the Atlantic Ocean with a regenerative aquaculture approach. The company produces seafood in Portugal focused on sustainable cultivation practices.
3 investors
Octopus Energy is a British renewable-energy supplier that powers over 10 million homes across the UK and internationally with green energy tariffs and customer service, and develops smart energy technology and hardware. It operates as a global group spanning renewable generation, EV services, heat pumps, and energy software, active in the UK, Germany, USA, Japan, Spain, Italy, France, and New Zealand.
3 investors
Offbeast manufactures plant-based whole-cut steaks using a proprietary fiber-alignment technology to achieve texture comparable to conventional meat products. The company serves consumers seeking plant-based alternatives to traditional beef.
3 investors
Offstream provides compliance software to help organizations efficiently manage carbon reduction efforts and fund allocation within the energy transition sector.
3 investors
Oko.finance provides financial services including crop insurance, savings tools, and loans to smallholder farmers in rural areas of emerging countries. The platform aims to improve employment opportunities and financial resilience for agricultural communities facing economic vulnerability and climate-related risks.
3 investors
Open Cosmos designs, manufactures, and operates satellites that deliver Earth observation and communications data to address global challenges. The company works with a range of customers to provide access to space and actionable insights.
3 investors
Open Forest Protocol builds data-backed financing and monitoring mechanisms for nature-based climate solutions, working with afforestation and reforestation projects tied to the voluntary carbon market. It collaborates with reforestation initiatives across 20 countries.
3 investors
Open Hydro develops technology to assess and mitigate greenhouse gas emissions from freshwater systems, including reservoir emissions, providing climate mitigation and resilience insights for hydropower utilities and water industries. It serves water users and utilities worldwide with emissions management and climate action tools.
3 investors
Optera provides carbon management and climate compliance software for corporate sustainability teams, with AI-powered tools for emissions reporting and regulatory compliance.
3 investors
Optiml offers Real Estate Decision Intelligence (REDI), a platform that helps real estate owners optimize assets for both financial performance and net-zero targets, covering multiple regions and asset classes. It supports strategy optimization, performance tracking, and workflow execution to reduce cost, time, and CO₂e emissions.
3 investors
OptQC develops optical quantum computers aimed at practical societal implementation, addressing energy efficiency and computational capacity limits through a scalable photonic approach to quantum computing.
3 investors
OroraTech operates a wildfire management platform that uses thermal infrared sensors on its own satellites (plus public satellites) in low Earth orbit and AI analytics to detect fires, map burnt areas, and predict fire spread in real time. It serves civil protection agencies, forestry, infrastructure and energy operators, and carbon and climate organizations worldwide to monitor and respond to wildfire risk.
3 investors
Pacifico Biolabs produces mycelium-based meat alternatives (branded Viando), starting with a chicken alternative made from fermented fungi, for food manufacturers and food service chains. It uses steel fermentation bioreactors to make its "mycomeat" as a B2B ingredient that integrates into existing meat supply chains and cooking processes.
3 investors
Paebbl produces carbon-storing materials, including its Rebond 200 additive used to partially replace traditional cement in ready-mix concrete, reducing the concrete's embodied carbon while meeting standard strength specifications. Its products target the construction and building-materials industry, having been used at commercial scale in an industrial floor slab in Germany.
3 investors
Parallel Carbon develops hardware technology to produce low-cost hydrogen, renewable fuels, and chemicals such as fertilizers and methanol as alternatives to fossil fuels. The company targets fuel and chemical producers, aiming to reduce costs and remove site constraints.
3 investors
EarthOptics measures soil physical, chemical, and biological properties using field sensors and lab analysis, delivering agronomic and carbon management insights through a dashboard for farmers and landowners. Its offerings include predictive crop planning, nutrient management, soil analysis, and carbon measurement and credit planning for agricultural operations.
3 investors
Pelikan Mobility provides long-term leasing of electric utility vehicles combined with a fleet management software (FleetPilot) that optimizes vehicle transition timing, costs, and decarbonization trajectories for commercial fleets in France. The company serves energy, telecom, construction, and logistics companies managing large dispersed vehicle fleets.
3 investors
Perennial builds standards, tools, and technologies to verify climate-smart agriculture and measure soil carbon at scale. The company focuses on soil as a carbon sink to support carbon measurement and reversal of climate change.
3 investors
PhoodSolutions uses computer vision and data analytics to help food service operators optimize menu performance, labor management, and reduce food waste and costs.
3 investors
Planetary removes carbon dioxide from the atmosphere using ocean alkalinity enhancement, introducing purified alkaline minerals into coastal outfalls at existing infrastructure sites like power plants and wastewater treatment facilities. The company produces certified carbon removal credits verified by third-party monitors.
3 investors