Climate Tech
69 companies in this sector.
| # | Company | Description | Location | Status | Funding |
|---|---|---|---|---|---|
| 01 | Rivian | Electric vehicle manufacturer producing the R1T pickup truck, R1S SUV, and commercial delivery vans for Amazon. Founded in 2009, Rivian went public in November 2021 in one of the largest IPOs in US history. Operates manufacturing in Normal, Illinois with a second plant planned in Georgia. | Irvine, US | Public | $10.5B |
| 02 | Crusoe | Vertically integrated AI infrastructure company that builds and operates data centers powered by stranded and wasted energy sources, offering cloud computing services purpose-built for AI workloads. | Denver, United States | Private | $2.5B |
| 03 | Impossible Foods | Pioneer of plant-based meat alternatives using heme protein technology to replicate the taste and texture of animal meat. The Impossible Burger became a cultural phenomenon, available at over 40,000 restaurants and grocery stores worldwide. | Redwood City, United States | Private | $1.8B |
| 04 | Form Energy | Developing low-cost, multi-day energy storage using rechargeable iron-air batteries capable of delivering electricity for 100 hours at less than 1/10th the cost of lithium-ion. The batteries work by reversibly rusting and de-rusting iron using water and air. Manufacturing at Form Factory 1 in Weirton, West Virginia (550,000 sq ft). Signed $1B deal with Google for 300MW/30GWh system powering its Minnesota data center. Planning IPO in 2027. | Somerville, US | Private | $1.6B |
| 05 | Bird Rides | Electric scooter and micromobility company that pioneered shared dockless electric scooters in cities. Bird deployed fleets of app-unlocked e-scooters and e-bikes across hundreds of cities globally. Became the fastest company in history to reach a $1B valuation. After going public via SPAC in 2021, filed Chapter 11 bankruptcy in December 2023. Assets sold to Third Lane Mobility in April 2024. | Santa Monica, US | Closed | $1.4B |
| 06 | Slate Auto | Electric vehicle startup building radically simple, affordable, and customizable pickup trucks and SUVs manufactured in the United States, with a base price starting in the mid-$20,000s. Originally incubated as 'Re:Car' within Re:Build Manufacturing before spinning out as an independent company in 2023. Over 160,000 reservations. | Troy, United States | Private | $1.4B |
| 07 | Sila Nanotechnologies | Alameda, California-based battery materials company commercializing a silicon-based anode that boosts lithium-ion energy density by 20-40%. Powering the Mercedes EQG and the Whoop 4.0 wearable. Founded 2011 by Tesla and MIT alumni. | Alameda, United States | Private | $1.3B |
| 08 | Base Power Company | Austin-based energy technology startup that manufactures, installs, owns, and operates residential battery storage systems to provide homes with affordable, reliable backup power. The company operates as both a licensed electricity provider and a virtual power plant, pooling thousands of home batteries into a distributed energy network that strengthens the grid. | Austin, Texas, United States | Private | $1.3B |
| 09 | SHINE Technologies | Nuclear fusion company commercializing fusion-based technologies through a phased strategy: industrial testing (FLARE neutron source), medical isotopes (Lu-177 for cancer therapy, Mo-99 for diagnostics), nuclear waste recycling, and ultimately fusion energy. The Cassiopeia facility in Janesville, WI is the largest n.c.a. Lu-177 production facility in North America (200,000 doses/year capacity). Achieved first-ever visible Cherenkov radiation produced by fusion in 2023. | Janesville, US | Private | $1.0B |
| 10 | Yondr Group | London-based hyperscale data center developer building campuses across Europe, North America, and Africa for cloud and AI workloads. 1.4 GW of capacity under construction across Lagos, Johannesburg, Frankfurt, and Phoenix. Founded 2018. | London, United Kingdom | Private | $1.0B |
| 11 | Helion Energy | Everett, Washington-based private fusion electricity startup building Polaris, its 7th prototype. Targeting first commercial fusion power plant delivering electricity to a Microsoft data center by 2028, and a 500MW plant for Nucor in the 2030s. Founded 2013; Sam Altman is longtime board chair. | Everett, USA | Private | $990M |
| 12 | Joby Aviation | Developing an all-electric vertical takeoff and landing (eVTOL) aircraft designed to transport a pilot and four passengers at speeds up to 200 mph for on-demand air taxi services, targeting commercial operations in 2026. | Santa Cruz, United States | Public | $795M |
| 13 | Apeel Sciences | Apeel Sciences develops plant-derived, edible coatings that extend the shelf life of fresh produce by slowing water loss and oxidation. Founded with a Bill and Melinda Gates Foundation grant, the company's FDA-approved coatings are made from lipids found in fruit peels, enabling longer freshness without refrigeration. Used by major retailers including Costco, Kroger, and Walmart. | Goleta, United States | Private | $715M |
| 14 | EnerVenue | Lithium-free energy storage company commercializing aqueous metal-hydrogen battery technology originally developed by NASA in the 1980s and adapted by Stanford professor Yi Cui. Energy storage vessels (ESVs) offer 30,000+ cycle life for grid-scale, industrial, and AI data center applications without fire risk or degradation. | Fremont, United States | Private | $620M |
| 15 | Radiant Industries | Radiant Industries develops portable nuclear microreactors designed to replace diesel generators with clean, zero-emissions power. The company's flagship product, Kaleidos, is a 1 MW reactor that fits inside a shipping container. Founded by former SpaceX engineers, Radiant plans to mass-produce microreactors from its factory in Oak Ridge, Tennessee. | El Segundo, United States | Private | $519M |
| 16 | Valar Atomics | Nuclear reactor startup building small modular reactors (SMRs) designed to power AI data centers and produce synthetic fuels. Airlifted its first reactor from California to Utah aboard three C-17 Globemaster aircraft in February 2026. Targeting criticality before July 4, 2026, as part of the DOE pilot program. | El Segundo, United States | Private | $489M |
| 17 | Twelve | Berkeley, California-based carbon transformation company that converts captured CO2 into synthetic aviation fuel, cosmetic ingredients, and industrial chemicals via electrolysis. Partners include Alaska Airlines, Microsoft, and Procter & Gamble. Founded 2015. | Berkeley, United States | Private | $446M |
| 18 | Boston Metal | Woburn, MA Molten Oxide Electrolysis (MOE) platform for green steel and critical metals (niobium, tantalum, vanadium, nickel). MIT spinout; 1,600°C electrolysis decarbonizes steelmaking and unlocks low-grade ore. Pilot facility in Brazil restarting in September 2026. Lifetime raised crossed $500M+ with the May 2026 Tata Steel-led expansion. | Woburn, United States | Private | $442M |
| 19 | Blue Energy | Blue Energy develops prefabricated, modular nuclear power plants designed for centralized manufacturing in existing shipyards, reducing capital costs from over $10K/kW to $2K/kW and shrinking build times from 10 years to as little as 2 years. Applies mature light water reactor technology with passive safety features to a re-engineered construction model. First 1.5 GW project in Port of Victoria, Texas (partnered with Crusoe for AI data centers) begins construction Q3 2026. | Maryland, United States | Private | $425M |
| 20 | Tomorrow.io | Weather intelligence and climate adaptation platform providing real-time forecasting, enterprise APIs, and its own constellation of weather radar satellites. Formerly ClimaCell. | Boston, US | Private | $422M |
| 21 | Cowboy Space | Bay Area vertically integrated orbital data center company (formerly Aetherflux). Builds a constellation of solar-powered LEO satellites that double as AI compute nodes, launched on a purpose-built in-house rocket whose second stage IS the data center. Founded by Robinhood co-founder Baiju Bhatt. | San Carlos, United States | Private | $335M |
| 22 | Oishii | Jersey City-based vertical farming company using robotics, automation, and Japanese growing techniques to produce premium pesticide-free, Non-GMO strawberries. Operates Smart Farms across the US and Japan and crossed unit-economic break-even ahead of its May 2026 Series C first close. | Jersey City, United States | Private | $284M |
| 23 | AMP Robotics | AMP Robotics builds AI-powered automation and robotics systems for the waste and recycling industry, using computer vision and machine learning to identify, sort, and process recyclable materials at scale across municipal solid waste and single-stream recycling facilities. | Louisville, United States | Private | $256M |
| 24 | BlocPower | BlocPower is a climate technology company that uses data analytics, proprietary software, and structured finance to make energy-efficient building upgrades accessible to underserved communities. The company manages end-to-end electrification retrofits, including heat pump installations, offering flexible financing so property owners can upgrade with little or no upfront cost. | Brooklyn, United States | Private | $248M |
| 25 | Glydways | Glydways designs, manufactures, and operates networks of autonomous electric vehicles (Glydcars) on dedicated guideways, providing affordable mass transit that moves people at 10x the throughput and cost efficiency of existing systems. Deploying pilot networks in the UAE, New York City, and Atlanta. | South San Francisco, United States | Private | $246M |
| 26 | Basecamp Research | London-based bio-foundation-model company that has assembled the largest sequenced biodiversity dataset (BaseData, ~10x larger than the next public dataset) via partnerships with 25 sovereign biodiversity agencies. Foundation model trained for enzyme discovery. Founded 2019. | London, United Kingdom | Private | $190M |
| 27 | Watershed | Enterprise climate platform that helps companies measure, report, and reduce carbon emissions. Provides software for greenhouse gas accounting, climate disclosure compliance (CSRD, SEC, California SB 253/261), supply chain decarbonization, and access to high-quality carbon removal projects. Customers include Airbnb, Shopify, Stripe, Walmart, BlackRock, and Spotify. | San Francisco, United States | Private | $185M |
| 28 | Heron Power | Develops solid-state transformer technology for the modern electrical grid, replacing century-old transformer designs with modular, software-integrated power electronics. The flagship product, Heron Link, enables renewable energy, battery storage, and AI data center developers to connect directly to medium-voltage grids. | Scotts Valley, US | Private | $183M |
| 29 | Ubicquia | Ubicquia provides AI-driven intelligent infrastructure platforms that attach to existing streetlights, distribution transformers, and utility poles to collect, process, and transmit operational data in real time. Their analytics platform processes over 3.5 billion data sets per day, serving 1,000+ utilities and municipalities globally. | Fort Lauderdale, US | Private | $161M |
| 30 | Euler Motors | Indian electric commercial vehicle manufacturer focused on last-mile logistics. Builds electric cargo vehicles and has emerged as the second-largest player by market share in India's four-wheel electric commercial vehicle segment with 22% market share. Operates 100+ touchpoints across India. | New Delhi, India | Private | $143M |
| 31 | Panthalassa | Portland, Oregon public-benefit corporation building floating, ocean-powered AI data centers. Wave-energy buoys with onboard AI compute, seawater-cooled, transmitting via LEO satellites. Pilot Ocean-3 nodes deploying in the northern Pacific in 2026. | Portland, United States | Private | $140M |
| 32 | Sygaldry | Sygaldry Technologies builds quantum-accelerated AI servers that combine multiple qubit types within a single fault-tolerant architecture to exponentially speed up AI training and inference, reducing the cost and energy consumption of increasingly large models. Founded by quantum computing pioneer Chad Rigetti (ex-Rigetti Computing). | Ann Arbor, United States | Private | $139M |
| 33 | Tidal Vision | Bellingham, Washington-based sustainable materials company producing chitosan (a biopolymer from waste shrimp shells) for water treatment, textiles, and agriculture applications. Displacing PFAS and formaldehyde-based chemistries. Founded 2015. | Bellingham, United States | Private | $133M |
| 34 | Arc Boat Company | Electric vessel manufacturer building high-performance all-electric boats for consumer, commercial, and defense markets. Expanding from watercraft into electric tugboats and other marine applications. | Los Angeles, United States | Private | $124M |
| 35 | Beyond Meat | Plant-based meat company that produces burger patties, sausages, ground meat, and other products designed to replicate the taste and texture of animal-based meat using plant proteins, primarily pea protein. Pioneered proprietary extrusion technology to create realistic meat alternatives. | El Segundo, United States | Public | $124M |
| 36 | Moxion Power Co. | Moxion Power manufactured mobile energy storage products that enabled last-mile electrification across industries including construction, transportation, events, entertainment, film production, and telecommunications. The company offered zero-emission portable battery generators designed to replace traditional diesel generators, providing clean, quiet, and dependable temporary power. Founded in 2020 after co-founders Paul Huelskamp and Alex Meek witnessed diesel generators polluting their Mill Valley neighborhood during the 2019 California wildfire season. Moxion's units delivered 75 kilowatts of power and over 600 kilowatt-hours of energy. The company filed for Chapter 7 bankruptcy in August 2024 after investor funding fell through. | Richmond, US | Closed | $123M |
| 37 | Greenly | Paris-based carbon accounting platform helping mid-market companies measure, report, and reduce their greenhouse gas emissions. Compliant with CSRD, SBTi, and CDP frameworks. 3,000+ customers across Europe, US, and Asia. Founded 2019. | Paris, France | Private | $105M |
| 38 | Thea Energy | Kearny, New Jersey-based stellarator fusion power-plant developer. Building scalable fusion systems and magnet manufacturing. Spun out of Princeton Plasma Physics Lab work. Founded 2022. | Kearny, USA | Private | $100M |
| 39 | Accelsius | Develops two-phase, direct-to-chip liquid cooling systems for AI and high-performance computing data centers. Its proprietary NeuCool platform enables cooling for over 4500W per socket using safe dielectric refrigerants with zero ozone depletion potential. | Austin, US | Private | $89M |
| 40 | GridBeyond | AI-powered energy optimization platform that orchestrates distributed energy resources including renewable generation, battery storage, and industrial demand across multiple global markets in real time. | Dublin, Ireland | Private | $85M |
| 41 | Star Catcher Industries | Jacksonville-based company building the first commercial in-orbit power grid: a constellation of satellites that harvest solar energy and beam it via optical lasers to other spacecraft. Claims up to 10x more power delivery to satellites without retrofitting hardware. Founded by ex-Made In Space CEO Andrew Rush. | Jacksonville, United States | Private | $77M |
| 42 | Highland Electric Fleets | Beverly, Massachusetts-based Electrification-as-a-Service provider for school-bus and municipal fleets. Bundles vehicles, charging infrastructure, software, and operations in long-term contracts. Founded 2019. | Beverly, USA | Private | $75M |
| 43 | Flowcarbon | Flowcarbon is a climate finance and technology company that provides project financing and capital solutions for carbon reduction and removal projects. Co-founded by WeWork's Adam Neumann in 2021, the company originally aimed to tokenize carbon credits on blockchain but pivoted to carbon project development and financing. | New York, United States | Private | $70M |
| 44 | Emerald AI | Software platform that transforms AI data centers into flexible power grid assets, reducing energy consumption at peak demand without harming AI operations. Partnered with Nvidia and leading U.S. power producers (AES, Constellation, Invenergy, NextEra, Vistra) to pioneer power-flexible AI factories. | San Francisco, United States | Private | $68M |
| 45 | Climate First Bancorp | St. Petersburg, Florida-based mission-driven community bank holding company (parent of Climate First Bank and OneEthos). Approaching $2B in total assets at the 5-year mark. Plans a Florida community-bank roll-up to $4B in 5 years; contemplating an IPO. Founded 2021. | St. Petersburg, USA | Private | $67M |
| 46 | Orbital Materials | London and San Francisco-based AI for materials discovery. Products target data center cooling (PFAS-free liquid coolant) and adjacent infrastructure. Founded around 2022 by ex-Google DeepMind researcher Jonathan Godwin. | London, United Kingdom | Private | $66M |
| 47 | Aetherflux | Space-based solar power company developing constellations of small satellites in low Earth orbit that collect solar energy and transmit it to ground stations via infrared lasers. Founded by Robinhood co-founder Baiju Bhatt. Also building Galactic Brain, an orbital data center project placing AI compute hardware next to solar power in space, targeting Q1 2027. | San Carlos, United States | Private | $60M |
| 48 | Rocsys | Delft-based hands-free robotic charging systems for autonomous EV fleets. Built the world's first multi-bay robotaxi charger, the M1, capable of serving up to 10 bays with one overhead unit. Customers across logistics, port, and robotaxi operators in Europe and the US. | Delft, Netherlands | Private | $55M |
| 49 | Moment Energy | Coquitlam, BC-based North American leader in second-life EV battery storage. Repurposes used EV batteries retaining 70-80% capacity into commercial-scale battery energy storage systems for data centers, hospitals, factories, and microgrids. Texas gigafactory planned at roughly 1 GWh per year. | Coquitlam, Canada | Private | $55M |
| 50 | Critical Loop | Critical Loop builds modular, relocatable microgrids that connect industrial sites to power in days or weeks instead of waiting years for permanent grid upgrades. Combines battery storage, generation, and Cygnus software-defined power controller into a single deployable platform for factories, data centers, EV charging sites, and airports. | Los Angeles, United States | Private | $49M |
| 51 | Evotrex | Los Angeles-based maker of the PG5, a hybrid off-grid EV travel trailer (~$160K). Battery-electric trailer with on-board gas extended-range generator (EREV). 90% of orderbook is 'Premium trim'. Production target ~1,000 units/year. Founded 2024 by ex-Anker leaders. | Los Angeles, USA | Private | $46M |
| 52 | Mantle8 | Grenoble-based French natural-hydrogen explorer using proprietary 4D subsurface modeling (HOREX) to identify commercially viable geologic H2 deposits. Targeting production cost below €0.80/kg. Founded by ex-TotalEnergies geoscientist Emmanuel Masini. | Grenoble, France | Private | $38M |
| 53 | ThinkLabs AI | Physics-informed AI software that helps utility operators and planners manage grid reliability, optimize power distribution, and reduce bottlenecks. Creates digital twins of power grids, evaluating 10 million scenarios in 10 minutes while preserving 99.7% accuracy. Spun out of GE Vernova. | New York, United States | Private | $38M |
| 54 | NanoTech Materials | NanoTech Materials is an advanced-materials company developing high-performance coatings built on its patented Insulative Ceramic Particle (ICP) technology. Products (Cool Roof Coat, Insulative Coat, Wildfire Shield) are applied to buildings and critical infrastructure to cut HVAC energy consumption and provide fire resistance, with Wildfire Shield engineered to withstand 3,272F without toxic byproducts. | Katy, United States | Private | $34M |
| 55 | Iceotope | Sheffield, UK precision chassis-level liquid cooling systems for AI data centers, HPC, and edge infrastructure. Holds 200+ patents on chassis-level immersion cooling. Founded 2005 by Peter Hopton and David Craig; current President and CEO is Jonathan Ballon. | Sheffield, United Kingdom | Private | $26M |
| 56 | Lithosquare | Paris-based AI-driven critical mineral exploration startup. Combines foundational AI with geological expertise to accelerate discovery of copper, rare earths, and lithium deposits that underpin the energy transition and the AI build-out. | Paris, France | Private | $25M |
| 57 | P2 Science | Connecticut-based green chemistry company converting plant oils and sustainable feedstocks into ingredients for beauty, aroma, polymers, coatings, and crop care. Founded 2009 by Yale Center for Green Chemistry scientists. CEO Oihana Elizalde leads commercial scale-up. | Woodbridge, USA | Private | $23M |
| 58 | NovoNutrients | Sunnyvale, California-based climate biotech converting industrial CO2 emissions into single-cell protein for aquaculture and pet food via bioreactor fermentation of hydrogenotrophic microbes. Partners include Chevron and Woodside. Founded 2018. | Sunnyvale, United States | Private | $23M |
| 59 | Halcyon | AI-powered energy intelligence platform built on the most comprehensive catalog of US energy regulatory data, spanning all 50 state public utility commissions, every ISO/RTO, and FERC. Helps utilities, developers, hyperscalers, and investors make faster decisions about energy infrastructure. | New York City, United States | Private | $21M |
| 60 | Terra AI | San Francisco-based generative geological AI modeling for mineral, energy, geothermal, and carbon-storage exploration. Claims 125,000x faster than traditional methods; serves copper, gold, and rare earth projects. Founded 2023 by Stanford AI PhDs. | San Francisco, USA | Private | $20M |
| 61 | D-CRBN | Antwerp-based plasma-based CO2 and hydrocarbon recycling company converting industrial emissions into carbon monoxide and syngas for chemical and fuel use. Reframes decarbonization as feedstock resilience. Founded 2020. | Antwerp, Belgium | Private | $19M |
| 62 | Helix Earth | Developer of NASA-derived retrofit devices for commercial HVAC systems. Deploys Helix MICRA units using accelerated liquid-gas chemistry to pre-dehumidify air, cutting energy use by up to 50% without replacing existing rooftop units. Technology originally designed to protect astronauts in spacecraft environments. | Houston, United States | Private | $18M |
| 63 | Scalvy | Distributed power delivery company with a patented Power Neuron platform that distributes power conversion across compact, software-coordinated modules with built-in energy storage for AI data centers, energy storage, and electric mobility. | Austin, United States | Private | $17M |
| 64 | ECOncrete | Bio-enhancing marine construction company (eco-concrete for seawalls, breakwaters, ports, offshore wind, bridges). Created 90,000 sqm of marine habitat in the last 18 months. Deployments in Rotterdam, NYC, San Diego, the Mediterranean, and New Zealand. Founded 2012 in Israel and St. Petersburg, FL. | Tel Aviv, Israel | Private | $14M |
| 65 | Skyfora | Helsinki-based company turning telecom cell-tower GNSS receivers into a real-time, high-resolution 3D atmospheric sensing network for AI weather forecasting. Patented Telecom GPS/GNSS Meteorology. Commercial API and dashboard launching mid-2026. Founded 2019. | Helsinki, Finland | Private | $12M |
| 66 | Tangible | Fintech platform helping hardtech companies (robotics, climate tech, mobility, data centers) access structured debt financing from institutional lenders. AI-powered platform standardizes data, documentation, and reporting, reducing reliance on dilutive equity rounds. 28 banks on platform. | London, GB | Private | $8M |
| 67 | Oklo | Oklo is an advanced nuclear technology company designing and deploying next-generation fast fission power plants. The company's Aurora powerhouse uses metal-fueled fast reactor technology to generate clean energy, while also pioneering nuclear fuel recycling. | Santa Clara, US | Public | $6M |
| 68 | Shatterdome Energy | San Francisco AI-native platform for energy trading and grid management. Autonomous system ingesting real-time grid data (weather, congestion, ramp-rates, prices) and trading programmatically. Aggregates renewables, batteries, and flexible demand into virtual power plant networks. Moved 200 MWh in 3 months with a 1.5 GW pipeline. | San Francisco, United States | Private | $4M |
| 69 | Tesla | Electric vehicle manufacturer and clean energy company. Produces the Model S, 3, X, Y, Cybertruck, and Semi. Also operates Tesla Energy (solar panels, Powerwall, Megapack). | Austin, US | Public | - |