OECD coverageUpdated 24 Jul 2026Sources 10/10Minimum round $5M / institutional
RPDTLSCleanTech StartupIntelligence

Capital · Technology · Deployment

CleanTech StartupIntelligence

Institutional funding and commercialisation signals across OECD clean-tech companies.

10qualified companies
$871.4Mtracked qualifying capital
4OECD countries represented
10evidence publishers

01 · Industry map

Browse by clean-tech system

Categories are technology-led. A company may appear in more than one system when its platform crosses sector boundaries.

02 · Company intelligence

Funding rounds with an evidence trail

Every profile separates technology maturity from commercial maturity and links the underlying company, investor, media and project sources.

10 profiles shown
Circular Economy & WasteIndustrial Decarbonisation
Verified

Paris · France

Syntetica

Latest qualifying round$30 million

A chemical recycling platform that separates and recycles mixed Nylon 6 and Nylon 6,6 textile waste into virgin-quality polymer pellets for reuse in apparel supply chains.

Round
Series A
Announced
16 Jul 2026
Lead investor
Bpifrance Ecotechnologies 2
Evidence
96/100 confidence
Technology stageCommercial demonstration

The company is moving from laboratory and pilot work toward production of hundreds of tonnes of pellets per year.

Commercial stagePre-commercial scale-up

Brand and manufacturing partnerships are in place, with a recycling project expected to reach market and a demonstration facility under development.

Stakeholders, projects and all sources

Investors

  • Bpifrance Ecotechnologies 2
  • Lululemon
  • MAS Holdings
  • EQT Ventures
  • SWEN Capital Partners
  • European Innovation Council

Stakeholders

  • Strategic investorLululemon
  • Strategic investorMAS Holdings
  • Project partnerMichelin Center for Sustainable Materials
  • CustomerVictoria's Secret
  • CustomerEtam
  • Public institutionEuropean Innovation Council

Projects and deployments

In development

Clermont-Ferrand commercial demonstration facility

Clermont-Ferrand, France

A commercial demonstration facility developed with Michelin to validate production at industrially relevant scale.

Project source ↗

Evidence trail

Company or primary page ↗
  1. InvestorBpifrance · Syntetica raises $30M Series A for circular nylon recycling
  2. MediaTechCrunch · Lululemon backs nylon-recycling startup Syntetica in $30M Series A
PFAS & Emerging ContaminantsWaterWastewater
Partially verified

Dallas · United States

Hexivon

Latest qualifying roundUndisclosed

A continuous-flow treatment platform designed to capture and destroy PFAS molecules on site at ambient temperature, avoiding a secondary concentrated waste stream.

Round
Strategic investment
Announced
14 Jul 2026
Lead investor
Hillwood
Evidence
82/100 confidence
Technology stageField pilot validated

A 2025 drinking-water pilot in Cary treated 150,000 gallons per day and reported non-detectable PFAS in independently tested output.

Commercial stageEarly commercial deployment

The company is working with municipal, industrial and government customers and is preparing accelerated deployments with Hillwood.

Stakeholders, projects and all sources

Investors

  • Hillwood

Stakeholders

  • Strategic investorHillwood
  • CustomerMunicipal water utilities
  • CustomerIndustrial facilities
  • CustomerGovernment agencies

Projects and deployments

Completed pilot

Cary drinking-water PFAS pilot

Cary, North Carolina, United States

A 150,000 gallon-per-day pilot treating drinking water with third-party laboratory verification.

Project source ↗

Evidence trail

Company or primary page ↗
  1. CompanyHexivon / PR Newswire · Hillwood invests in Dallas-based Hexivon to destroy forever chemicals in water
  2. CompanyHexivon · Hexivon newsroom
Carbon Removal & CCUSWaterIndustrial Decarbonisation
Verified

Pasadena · United States

Captura

Latest qualifying round$12.5 million

PFAS-free bipolar membrane electrodialysis systems for direct ocean carbon capture, lithium extraction, desalination, wastewater valorisation and on-site acid/base generation.

Round
Series B — first close
Announced
25 Jun 2026
Lead investor
Equinor Ventures
Evidence
89/100 confidence
Technology stageCommercially validated platform

The platform completed a technology qualification programme and is being manufactured for initial commercial customers.

Commercial stageFirst commercial deliveries

Captura has purchase orders for lithium-extraction stacks and is expanding its Pasadena manufacturing facility.

Stakeholders, projects and all sources

Investors

  • Equinor Ventures
  • Aramco Ventures
  • EDP Ventures
  • Eni Next
  • Freeflow Ventures
  • Hitachi Ventures
  • JAL Innovation Fund
  • Maersk Growth
  • mTerra Ventures
  • National Grid Partners

Stakeholders

  • Strategic investorEquinor
  • Strategic investorMaersk Growth
  • Strategic investorJapan Airlines
  • CustomerLithium extraction customers

Projects and deployments

Joint development

1,000-ton Direct Ocean Capture pilot

United States

A pilot system developed and qualified with Equinor as a step toward broader commercial deployment.

Project source ↗
Scaling production

Pasadena electrodialysis manufacturing expansion

Pasadena, California, United States

Expansion of polymer, membrane and stack manufacturing for commercial deliveries.

Project source ↗

Evidence trail

Company or primary page ↗
  1. CompanyCaptura · Captura raises $12.5M in first close of Series B financing
Renewable & Advanced Energy
Verified

Seattle · United States

Endurance Energy

Latest qualifying round$54 million

Subsea geothermal power plants intended to access high-temperature resources beneath thin ocean crust and deliver dispatchable baseload electricity.

Round
Series A
Announced
11 Jun 2026
Lead investor
Founders Fund
Evidence
84/100 confidence
Technology stageConcept and test deployment

The company is developing its first subsea test deployment and power-plant architecture.

Commercial stagePre-commercial

No commercial power plant is operating; the Series A finances engineering and test deployment.

Stakeholders, projects and all sources

Investors

  • Founders Fund
  • Ascend
  • Construct Capital
  • Felicis Ventures
  • First Round Capital
  • Point72 Ventures
  • Riot Ventures
  • Voyager Ventures

Stakeholders

  • InvestorFounders Fund
  • Project partnerGovernment of Tonga
  • CustomerAI data-centre operators

Projects and deployments

Commencing test deployment

Tonga subsea geothermal test deployment

Tonga

A government-supported subsea test intended to validate core elements of the ocean-geothermal concept.

Project source ↗

Evidence trail

Company or primary page ↗
  1. MediaTechCrunch · Endurance Energy raises $54M to harness a massive untapped energy source
  2. CompanyEndurance Energy · Endurance Energy
Circular Economy & WasteEnergy Storage & BatteriesIndustrial Decarbonisation
Verified

Perth · Australia

Renewable Metals

Latest qualifying roundA$12 million

An alkali hydrometallurgical process for mixed lithium-ion battery chemistries that targets more than 95% recovery of lithium, cobalt, nickel, copper and manganese without pre-sorting.

Round
Series A
Announced
21 May 2026
Lead investor
Clean Energy Finance Corporation, Virescent Ventures
Evidence
93/100 confidence
Technology stageCommercial prototype

A continuous prototype plant is moving toward 24/7 operation and near-commercial performance validation.

Commercial stageDemonstration and FEED

The company is validating a 960–2,000 tonne-per-year prototype and designing its first commercial facility.

Stakeholders, projects and all sources

Investors

  • Clean Energy Finance Corporation
  • Virescent Ventures
  • Neglected Climate Opportunities
  • European Metal Recycling
  • Investible
  • Climate Tech Partners

Stakeholders

  • Public institutionClean Energy Finance Corporation
  • Strategic investorEuropean Metal Recycling
  • Public institutionAustralian Government
  • Public institutionUK Government

Projects and deployments

Commissioning for continuous operation

Kewdale commercial prototype

Kewdale, Western Australia

A modular prototype scaling from 960 to 2,000 tonnes per year to produce sustained performance data.

Project source ↗
Front-end engineering and design

Hunter commercial facility

Hunter, New South Wales, Australia

The planned first commercial-scale facility and blueprint for repeatable modular plants.

Project source ↗

Evidence trail

Company or primary page ↗
  1. MediaBatteryIndustry.net · Renewable Metals raises Series A investment round
  2. CompanyRenewable Metals · Renewable Metals technology and company profile
WastewaterCarbon Removal & CCUS
Verified

Brooklyn · United States

CREW Carbon

Latest qualifying round$25 million

A process-intensification system that doses alkaline minerals into existing wastewater infrastructure to improve biological treatment, reduce chemical use and lock away carbon dioxide.

Round
Series A plus non-dilutive capital
Announced
14 May 2026
Lead investor
Burnt Island Ventures
Evidence
91/100 confidence
Technology stageMulti-site deployment

The technology is operating at nearly ten wastewater facilities in the United States and Europe.

Commercial stageEarly commercial scale

Long-term utility procurement processes and more than $33 million in carbon-removal offtake agreements have been secured.

Stakeholders, projects and all sources

Investors

  • Burnt Island Ventures
  • AP Ventures
  • Sony Innovation Fund
  • Builders Vision
  • Kibo Invest
  • Idemitsu Ventures
  • New York Ventures
  • Counteract
  • ANIMO Ventures
  • Connecticut Innovations
  • Ponderosa Ventures
  • Echo River Capital

Stakeholders

  • InvestorBurnt Island Ventures
  • CustomerHampton Roads Sanitation District
  • CustomerCarbon-removal credit buyers
  • Strategic investorSony Innovation Fund

Projects and deployments

Operating

HRSD wastewater deployment

Virginia, United States

One of several utility deployments using existing treatment infrastructure for performance improvement and carbon removal.

Project source ↗

Evidence trail

Company or primary page ↗
  1. CompanyCREW Carbon · CREW raises $25M to scale wastewater treatment optimisation technology
Energy Storage & BatteriesCircular Economy & WasteGrid & Energy Systems
Verified

Vancouver · Canada

Moment Energy

Latest qualifying round$40 million

UL-certified modular stationary storage systems that repurpose electric-vehicle battery packs with a new battery-management software layer.

Round
Series B
Announced
05 May 2026
Lead investor
Evok Innovations
Evidence
89/100 confidence
Technology stageCertified commercial product

The system has UL certification and can combine multiple battery chemistries in modular grid-storage deployments.

Commercial stageCommercial scale-up

The company has utility, industrial and data-centre customers, supply agreements with Mercedes-Benz and Nissan, and a gigawatt-scale factory under construction.

Stakeholders, projects and all sources

Investors

  • Evok Innovations
  • W23
  • Amazon Climate Pledge Fund
  • In-Q-Tel
  • Liberty Mutual Strategic Ventures

Stakeholders

  • Project partnerMercedes-Benz
  • Project partnerNissan
  • Strategic investorAmazon Climate Pledge Fund
  • Public institutionU.S. Department of Energy

Projects and deployments

Under development

Austin gigawatt-scale manufacturing facility

Austin, Texas, United States

A North American manufacturing facility for second-life battery storage systems.

Project source ↗

Evidence trail

Company or primary page ↗
  1. MediaTechCrunch · Moment Energy raises $40M to meet infinite demand for power with EV batteries
Renewable & Advanced Energy
Verified

San Francisco · United States

Inertia Enterprises

Latest qualifying round$450 million

An inertial-confinement fusion architecture using mass-manufactured fuel targets and high-repetition-rate lasers derived from National Ignition Facility science.

Round
Series A
Announced
11 Feb 2026
Lead investor
Bessemer Venture Partners
Evidence
87/100 confidence
Technology stageEngineering development

The underlying fusion approach has reached scientific breakeven at NIF, while the startup must still develop a 10 kJ laser operating ten times per second.

Commercial stagePre-commercial

The company targets construction of a first grid-scale power plant in 2030; no commercial generation asset is operating.

Stakeholders, projects and all sources

Investors

  • Bessemer Venture Partners
  • GV
  • Modern Capital
  • Threshold Ventures

Stakeholders

  • Research partnerLawrence Livermore National Laboratory
  • InvestorBessemer Venture Partners
  • Strategic investorGV
  • Research partnerStanford University

Projects and deployments

Engineering development

High-repetition fusion laser programme

United States

Development of the laser and low-cost target platform required for a future grid-scale fusion plant.

Project source ↗

Evidence trail

Company or primary page ↗
  1. MediaTechCrunch · Twilio co-founder's fusion power startup raises $450M
Energy Storage & BatteriesGrid & Energy Systems
Verified

Mountain View · United States

Lunar Energy

Latest qualifying round$232 million

Integrated modular home-battery hardware and AI-driven Gridshare software that aggregates distributed energy resources into virtual power plants.

Round
Series C and Series D
Announced
04 Feb 2026
Lead investor
Activate Capital, B Capital, Prelude Ventures
Evidence
94/100 confidence
Technology stageCommercial product

Thousands of systems are deployed and the software manages 650 MW of distributed devices across multiple continents.

Commercial stageNational scale-up

Following a California launch, the company is expanding hardware deployment across the United States and scaling VPP programmes.

Stakeholders, projects and all sources

Investors

  • B Capital
  • Prelude Ventures
  • Activate Capital
  • DCVC
  • Piva Capital
  • Leitmotif
  • Sunrun
  • Itochu Corporation
  • Q Capital Partners

Stakeholders

  • CustomerSunrun
  • Strategic investorItochu Corporation
  • CustomerCalifornia Community Choice Aggregators
  • CustomerUtilities and energy retailers

Projects and deployments

Operating

Lunar Gridshare virtual power plants

United States, Europe and Asia

Distributed-resource programmes managing 650 MW across residential batteries and other connected devices.

Project source ↗

Evidence trail

Company or primary page ↗
  1. CompanyLunar Energy / GlobeNewswire · Lunar Energy raises $232 million to scale home battery deployments and VPP software
Buildings & Heat
Verified

Redwood City · United States

Quilt

Latest qualifying round$20 million

Design-led, software-connected residential heat pumps with room-level control and over-the-air performance optimisation.

Round
Series B
Announced
08 Dec 2025
Lead investor
Energy Impact Partners, Galvanize
Evidence
88/100 confidence
Technology stageCommercial product

The installed fleet receives software and firmware updates that have improved real-world system performance.

Commercial stageMarket expansion

Nearly 1,000 units have been installed across 16 U.S. states and five Canadian provinces.

Stakeholders, projects and all sources

Investors

  • Energy Impact Partners
  • Galvanize
  • Alumni Ventures
  • Gradient Ventures
  • Incite Ventures
  • Lowercarbon Capital

Stakeholders

  • InvestorEnergy Impact Partners
  • InvestorGalvanize
  • CustomerResidential customers

Projects and deployments

Commercial rollout

North American residential deployment

United States and Canada

A growing installed base across 16 U.S. states and five Canadian provinces.

Project source ↗

Evidence trail

Company or primary page ↗
  1. MediaTechCrunch · Heat pump startup Quilt raises $20M Series B to expand sales

03 · Verification method

Discovery is broad. Publication is selective.

  1. 01Discover

    Specialist media, company and investor announcements, RSS, news search and optional structured funding APIs.

  2. 02Qualify

    OECD headquarters, relevant clean technology and institutional capital. Angel-only and crowdfunding rounds are rejected.

  3. 03Verify

    Duplicate reports are merged. Funding, investors, maturity claims and projects retain direct source links.

  4. 04Revisit

    Profiles are updated as pilots become projects, projects become orders and new institutional rounds close.