69 Best Clean Technology Startups to Watch in 2024

Venture Global LNG develops, constructs, and operates liquefied natural gas (LNG) export facilities.

Total Raised: $3000.00M

Last Funding: $3000.00M (Unknown)

Form Energy develops and commercializes a low-cost battery system that can store wind and solar energy for a long duration.

Total Raised: $679.20M

Last Funding: $405.00M (Series F)

Beta Technologies manufactures electric vertical takeoff, landing eVTOL aircraft, and recharging pad systems.

Total Raised: $693.00M

Last Funding: $318.00M (Series C)

Gropyus is a sustainable timber-hybrid buildings maker founded in 2019 by Markus Fuhrmann, Philipp Erler and Bernd Oswald .

Total Raised: $236.45M

Last Funding: $109.75M (Series D)

A mining company that utilizes Big data, statistical modeling, and ore-deposit science to research natural resources exploration. It was founded in 2018 and is located in Berkeley, California.

Total Raised: $511.00M

Last Funding: $491.00M (Unknown)

ZE Energy is a producer of renewable energy founded in 2019.

Total Raised: $109.50M

Last Funding: $58.00M (Series C)

Holaluz is a renewable energy producer founded in 2010 by Carlota Pi Amorós , Ferran Nogué and Oriol Vila .

Total Raised: $79.42M

Last Funding: $23.70M (Series B)

Clearway Energy owns and operates more than 8 gigawatts of renewable and conventional energy assets across the country.

Total Raised: $550.00M

Last Funding: $550.00M (Debt Financing)

EnviCore is an R&D company that specializes in developing technologies that are essential for improving natural resource development.

Total Raised: $304.75M

Last Funding: $304.75M (Seed)

Aira is a clean energy-tech provider founded in 2022.

Total Raised: $255.50M

Last Funding: $95.50M (Series A)

Aira is a manufacturer of intelligent heat pumps founded in 2022.

Total Raised: $164.40M

Last Funding: $68.40M (Series B)

Powin Energy is a manufacturer and developer of energy storage technology for transportation and portable power applications.

Total Raised: $200.00M

Last Funding: $200.00M (Debt Financing)

X-energy is a developer of advanced modular nuclear reactors and fuel technology for clean energy generation.

Total Raised: $500.00M

Last Funding: $500.00M (Series C)

Formo is a manufacturer of animal-free cheese alternative products founded in 2019 by Raffael Wohlgensinger.

Total Raised: $111.50M

Last Funding: $45.80M (Series A)

Formo is a manufacturer of animal-free cheese alternative products founded in 2019 by Raffael Wohlgensinger.

Total Raised: $111.70M

Last Funding: $61.00M (Series B)

Knave is a pay-per-use mobility solutions provider founded in 2019 by Edouard Vaujour .

Total Raised: $257.50M

Last Funding: $245.50M (Debt Financing)

Tier Mobility is a Berlin-based shared e-scooter vehicle company. The company was founded in 2018 by Julian Blessin, Lawrence Leuschner, and Matthias Laug.

Total Raised: $581.40M

Last Funding: $2.00M (Seed)

VOI is a dockless electric scooter-share company based in Stockholm, Sweden.

Total Raised: $397.90M

Last Funding: $45.00M (Series C)

Pine Gate Renewables is a developer and owner-operator of utility-scale solar and energy storage projects.

Total Raised: $288.00M

Last Funding: $288.00M (Unknown)

ZAP Surgical Systems designs and manufactures the ZAP-X® radiosurgery platform.

Total Raised: $159.00M

Last Funding: $78.00M (Series E)

Sustainable immersion cooling and automation solutions provider for data centers.

Total Raised: $103.01M

Last Funding: $33.91M (Unknown)

Sunly is a renewable energy producer founded in 2019 by Priit Lepasepp.

Total Raised: $364.84M

Last Funding: $332.50M (Debt Financing)

The Richman Group has thrived and grown into one of the nation's ten largest residential property owners.

Total Raised: $171.50M

Last Funding: $171.50M (Unknown)

Judo Bio is a biotechnology company that develops precision therapeutics targeting specific cell populations to address genetic diseases.

Total Raised: $100.00M

Last Funding: $100.00M (Series A)

Nuventura is a Berlin-based developer of GIS switchgear for environmental monitoring.

Total Raised: $29.88M

Last Funding: $26.88M (Series A)

Power to Hydrogen is developing a poprietary technology to produce low-cost electrolyzers that can produce hydrogen below $2/kg.

Total Raised: $18.00M

Last Funding: $18.00M (Series A)

CorPower Ocean is a wave energy converter solutions provider founded in 2012 by Patrik Möller .

Total Raised: $44.00M

Last Funding: $35.00M (Series B)

Manufacturer of biodegradable microcapsules and microparticles for use in consumer goods.

Total Raised: $54.13M

Last Funding: $35.00M (Series B)

DeepDrive is a high-tech electric motor manufacturer founded in 2021 by Stefan Ender , Alexander Rosen, Felix Poernbacher , Dean and Maximilian Habersbrunner.

Total Raised: $54.40M

Last Funding: $33.50M (Series B)

Paebbl is a carbon-storing building materials manufacturer founded in 2021 by Pol Knops, Marta Sjögren and Andreas Saari.

Total Raised: $25.00M

Last Funding: $25.00M (Series A)

REsurety is a provider of risk management and software products to the buyers and sellers of clean energy.

Total Raised: $48.00M

Last Funding: $32.00M (Series C)

A data intelligence company aiding urban opeartors in decision making

Total Raised: $95.00M

Last Funding: $35.00M (Unknown)

Koloma is a geologic hydrogen company that leverages technology and data to identify and commercialize geologic hydrogen resources.

Total Raised: $50.00M

Last Funding: $50.00M (Series B)

We make energy fair, smart and green - one flexible monthly plan with no hidden fees, digital-first and 100% renewable energy.

Total Raised: $22.93M

Last Funding: $9.73M (Unknown)

Terra One is a decentralised battery storage developer founded in 2021.

Total Raised: $7.50M

Last Funding: $7.50M (Seed)

Attochron is the provider of the only carrier-grade free-space optical communications equipment.

Total Raised: $15.00M

Last Funding: $15.00M (Series A)

As a licensed electrical contractor, Treehouse owns electrification projects from beginning to end. We scope, design, quote, permit, and install - ensuring quality work, reduced delivery time, and transparent pricing for every job.

Total Raised: $16.60M

Last Funding: $16.60M (Series A)

Indigo is an agricultural technology company utilizing natural microbiology and digital technologies to improve farmers' profitability, environmental sustainability and consumer health.

Total Raised: $620.50M

Last Funding: $175.00M (Series F)

OpenAirlines is an eco-flying software provider founded in 2006 by Alexandre Feray.

Total Raised: $47.50M

Last Funding: $47.50M (Series B)

EnergyX is a clean technology company that optimizes the lithium extraction process.

Total Raised: $75.00M

Last Funding: $75.00M (Unknown)

Harbinger is a commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbinger's best-in-class team of EV, battery, and drivetrain experts have pooled their deep experience to support the growing demand for medium-duty EVs.

Total Raised: $82.41M

Last Funding: $82.41M (Unknown)

LuxWall offers windows and glass for buildings that aim to serve as transparent insulation.

Total Raised: $51.00M

Last Funding: $51.00M (Series B)

Programming biolCellibre is a best-in-class manufacturing technology company.. Employing an organism-agnostic approach, we turn cells into specialized, sustainable factories for the manufacture of globally significant products at scale.ogy to turn cells into factories company

Total Raised: $18.21M

Last Funding: $6.71M (Unknown)

Merlin is the brainchild of several disparate experts in the solar industry together, with a bit of a kick from a few helpful outsiders.

Total Raised: $31.00M

Last Funding: $31.00M (Series B)

Matteco is a producer of advanced materials for green hydrogen founded in 2023 by Iker Marcaide.

Total Raised: $16.30M

Last Funding: $16.30M (Series A)

Debt financing platform supporting fintech companies in emerging and frontier markets.

Total Raised: $277.41M

Last Funding: $277.41M (Unknown)

Glint Solar is a solar developer software provider founded in 2020 by Harald Olderheim , Even Kvelland and John Modin.

Total Raised: $11.11M

Last Funding: $8.00M (Series A)

Sweep is a developers of carbon emissions tracking software.

Total Raised: $100.00M

Last Funding: $73.00M (Series B)

Naturbeads is a sustainable and biodegradable cellulose ingredients producer founded in 2018 by Giovanna Laudisio.

Total Raised: $11.59M

Last Funding: $9.85M (Series A)

Transaera is bringing comfort to billions of people while reducing the impact on climate and grid infrastructure.

Total Raised: $8.20M

Last Funding: $8.20M (Seed)

Provider of direct air capture (DAC) technologies for CO2 removal.

Total Raised: $7.50M

Last Funding: $7.50M (Seed)

Voltfang is a green energy storage solutions provider founded in 2020 by Roman Alberti .

Total Raised: $15.50M

Last Funding: $9.70M (Series A)

All Flex Solutions is a leading provider of specialty flex and rigid flex printed circuits, flexible heaters, and assemblies for mission and life-critical programs in industries like medical, defense, aerospace, semiconductor, and telecommunications.

Total Raised: $5.00M

Last Funding: $5.00M (Unknown)

Heliene Inc has developed technology to make solar power more reliable and affordable.

Total Raised: $54.00M

Last Funding: $54.00M (Unknown)

Forward Earth is an AI-powered environmental data management platform founded in 2023 by Micha Schildmann, Cari Davidson and Giuseppe Gentile.

Total Raised: $8.40M

Last Funding: $4.90M (Seed)

Anaphite is a dry-coating EV battery technology developer founded in 2016 by Alexander Hewitt.

Total Raised: $14.83M

Last Funding: $1.13M (Seed)

Klim is a regenerative agriculture-focused platform provider founded in 2020 by Nina Mannheimer.

Total Raised: $12.40M

Last Funding: $5.80M (Series A)

Renewable iron fuel technology developer to generate high-temperature heat without direct CO2 emissions.

Total Raised: $12.00M

Last Funding: $12.00M (Series A)

Commercial electric airliner company based in Los Angeles, USA.

Total Raised: $3.34M

Last Funding: $3.34M (Grant)

Technology platform for energy hubs and micro PPAs.

Total Raised: $5.40M

Last Funding: $5.40M (Series A)

Mine Storage is a large-scale energy storage solutions provider founded in 2000 by Thomas Johansson.

Total Raised: $23.80M

Last Funding: $23.80M (Unknown)

Phlair is a hydrolyzer-based direct air capture (DAC) technology developer founded in 2022 by Steffen Garbe, Malte Feucht and Paul Teufel .

Total Raised: $16.20M

Last Funding: $16.20M (Seed)

Planetary is on a mission to fight climate change by helping the ocean remove carbon dioxide from the atmosphere.

Total Raised: $11.35M

Last Funding: $11.35M (Series A)

Zevero is a carbon accounting platform for companies founded in 2021 by Shigeo Taniuchi .

Total Raised: $7.00M

Last Funding: $7.00M (Seed)

AirLoom Energy offers wind energy harvesting services. Airloom Energy is a Utility-Scale Wind Energy at Extremely Low Cost founded in 2019

Total Raised: $7.50M

Last Funding: $7.50M (Seed)

Developing novel catalysts and processes that enable sustainable chemistry and e-fuels.

Total Raised: $6.78M

Last Funding: $6.78M (Unknown)

Solar energy solutions provider for homes and SMEs.

Total Raised: $3.30M

Last Funding: $3.30M (Seed)

Producer of renewable energy from biological waste materials.

Total Raised: $2.50M

Last Funding: $2.50M (Seed)

Windmill Air specializes in designing modern and aesthetically pleasing air conditioning units that prioritize both user experience and environmental sustainability, drawing on 60 years of expertise in air care.

Total Raised: $5.00M

Last Funding: $5.00M (Series A)