68 Best Climate Tech Green Tech Startups to Watch in 2025

The Definitive Seedtable Ranking of Climate Tech Green Tech Startups

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 2,732 start-ups with an aggregate funding of $28.4b. The average funding per company in this subset is $417.9m.

Last update to the database: Feb 18, 2025. See changelog.

See all results for this search

Track over 71,000 companies

Discover
Fast-growing Global startups

Seedtable uses technology and people to track over 71,000 companies to help you find the right ones to partner with.

Pricing + Sign up

5

Funding Rounds

$72.2m

Money raised

Arzeda is a biotechnology and software company designing custom microorganisms for industrial applications through computational enzyme design, protein optimization, and metabolic engineering.

Key people:

1

Funding Rounds

$50.0k

Money raised

Pembient uses advances in biotechnology to fabricate horn and other wildlife products to combat the threat to endangered species.

11

Funding Rounds

$1.9b

Money raised

Impossible Foods is a plant-based meat company making meat and dairy products that are made to look and feel like animal products by manufacturing heme, the oxygen binding molecule found in blood, using engineered yeast grown in bioreactors.

8

Funding Rounds

$406.4m

Money raised

Bolt Threads is a biotechnology company that makes high performance fabrics and materials using biology.

4

Funding Rounds

$74.3m

Money raised

Pachama is a company estimating carbon storage in forests and predicting future deforestation or potential for forest restoration with the use of satellite images.

6

Funding Rounds

$577.8m

Money raised

Helion Energy is a fusion power company aiming to build the world's first fusion power plant.

Key people:

7

Funding Rounds

$711.5m

Money raised

Perfect Day Foods (formerly Muufri) engineered yeast capable of producing the proteins found in cows milk. They use these proteins to make their own line of animal-free dairy products.

Key people:

3

Funding Rounds

$2.9m

Money raised

Caban Systems is a Burlingame, California-based renewable energy and energy storage company developing modular energy storage platforms for critical infrastructure power needs.

Key people:

9

Funding Rounds

$20.3m

Money raised

New Wave Foods is a biotechnology company developing plant-based shellfish food products. The company is based out of San Francisco, California and was founded in 2015 by Dominique Barnes and Michelle Wolf.

1

Funding Rounds

$12.5m

Money raised

A bio-based chemical manufacturer focusing on human and animal nutrition, health, and materials markets.

5

Funding Rounds

$58.2m

Money raised

Shelf Engine is a Seattle-based software company and developer of an automated prediction ordering platform for food retailers, intended to reduce food waste.

Location:

Key people:

9

Funding Rounds

$177.9m

Money raised

Pyrowave is a company founded by Jocelyn Doucet, Jamal Chaouki, and Jean-Philippe Laviolette.

7

Funding Rounds

$83.0m

Money raised

Molecular Assemblies, Inc. is an enzymatic DNA synthesis technology founded in 2013 by Curt Becker, Bill Efcavitch and William Efcavitch.

4

Funding Rounds

$390.0m

Money raised

An Israeli startup company that is working to make sustainable "animal-free" cell-based meat products available at the local level by adapting the distributed manufacturing model

Key people:

8

Funding Rounds

$220.0m

Money raised

Just, Inc. (formerly known as Hampton Creek) is a food technology company developing and selling plant based food products around the world.

Location:

Key people:

4

Funding Rounds

$119.8m

Money raised

Aleph Farms is an Israeli cellular agriculture start-up founded by Didier Toubia and Shulamit Levenberg in 2017 developing technologies for culturing meat products into 3D structures.

Location:

Key people:

8

Funding Rounds

$551.0m

Money raised

Eat Just is a San Francisco based food technology company founded in 2011. The company is known for its bean-based egg substitute called Just Egg. Eat Just also produces egg-free mayonnaise.

4

Funding Rounds

$580.8m

Money raised

Upside Foods is a San Francisco-based company making cultured meat products. The company was founded by Uma Valeti, Nicholas Genovese, and Will Clem.

21

Funding Rounds

$1.9b

Money raised

Apeel Sciences is a company that develops treatments to prevent spoilage of fruits and vegetables using molecules naturally found in peels, which maintain moisture and keep out oxygen.

1

Funding Rounds

$408.5k

Money raised

Urban Electric Power is a Pearl River, New York-based developer of a zinc manganese dioxide battery technology. The company was spun out of the CUNY Energy Institute in 2013.

Key people:

7

Funding Rounds

$63.3m

Money raised

Catalog is a Boston, Massachusetts-based company developing a platform for DNA-based digital data storage.

14

Funding Rounds

$229.5m

Money raised

General Fusion pursues a fast, efficient, and collaborative path to practical fusion power. We are completing an aggressive development plan to deliver economical carbon-free fusion energy with our proprietary Magnetized Target Fusion technology by the 2030s.

Key people:

5

Funding Rounds

$2.1b

Money raised

Commonwealth Fusion Systems is a Cambridge, Massachusetts-based research and development company developing fusion power systems based on ARC tokamak reactors.

9

Funding Rounds

$331.1m

Money raised

Modern Meadow is a biotechnology company using cellular agriculture and biofabrication to manufacture bioleather, "Zoa", out of cultured animal free collagen mixed with natural and man made materials.

1

Funding Rounds

South Pole is a Zurich-based climate solutions company offering sustainable project development services in order to provide carbon offset credits to businesses and organizations.

6

Funding Rounds

$99.3m

Money raised

LevelTen Energy provides a clean energy procurement platform for midsize businesses and enterprises.

Location:

Key people:

4

Funding Rounds

$295.0m

Money raised

Califia Farms makes plant-based dairy products (primarily almond based) such as plant-based milks, plant-based creamers, juices, and dairy-free probiotic yoghurts. The company was founded in 2010 by Greg Steltenpohl and is located in San Joaquin Valley, California.

2

Funding Rounds

$21.0m

Money raised

Planet A Foods is a cocoa-free chocolate maker founded in 2021 by Sara Marquart.

Location:

Key people:

5

Funding Rounds

$43.9m

Money raised

Via Separations is a Watertown, Massachusetts-based company founded in 2016 by Shreya Dave.

Key people:

10

Funding Rounds

$635.4m

Money raised

Genomatica is a San Diego-based company founded in 2000 by Christophe Schilling.

Location:

Key people:

5

Funding Rounds

$104.5m

Money raised

A cellular agriculture company making fresh and frozen cultured seafood products.

Key people:

8

Funding Rounds

$269.6m

Money raised

Boom Supersonic is a Colorado-based company developing supersonic commercial aircraft.

Location:

Key people:

11

Funding Rounds

$256.5m

Money raised

Meatable is a cellular agriculture company making 100 percent clean meat products.

Location:

Key people:

1

Funding Rounds

$13.0m

Money raised

Blue Origin is an American, privately-funded, aerospace developer and manufacturer that is interested in lowering the cost of spaceflight in order to explore the solar system

Location:

Key people:

9

Funding Rounds

$1.3b

Money raised

Back Market is an online refurbished goods marketplace connecting consumers with sellers of electronic devices.

Location:

Key people:

2

Funding Rounds

$37.0m

Money raised

Reformation is a women's fashion company aimed at designing sustainable clothing and accessories.

Key people:

3

Funding Rounds

Carbon Analytics provides a SaaS platform solution designed to assess carbon emissions in companies' supply chains and generate actionable data that can be used to reduce emissions.

2

Funding Rounds

$5.0m

Money raised

Avalanche Energy Designs is an American start-up company designing, testing, and building micro-fusion reactors.

Location:

Key people:

7

Funding Rounds

$114.3m

Money raised

Geltor is a cellular agriculture company making essential proteins, such as collagen and gelatin, using microbes in their own bio-fermentation recombinant protein production facility.

Key people:

9

Funding Rounds

$474.1m

Money raised

Solugen is a speciality chemical manufacturing company developing aiming to replace petroleum-based chemicals with alternatives made from plant-based substitutes.

6

Funding Rounds

$138.2m

Money raised

Mosa Meat is a Dutch start-up company that makes and commercializes clean meat, meat made by growing animal cells directly rather than slaughtering animals.

Location:

Key people:

9

Funding Rounds

$24.2m

Money raised

Seattle Food Tech is a food manufacturing technology and production company producing plant-based meats. They make plant-based food and plant-based chicken nuggets.

Key people:

2

Funding Rounds

Integriculture is a Japanese cellular agriculture company making lab grown foie gras and other clean meat and cellular agriculture products. The company was founded in on October 23, 2015 and is located in Tokyo, Japan.

8

Funding Rounds

$175.0m

Money raised

Viridos is applying synthetic biology to microalgae for the production of products that address climate change and sustainability. Viridos is focused on producing algal biofuels and other sustainable resources from algae.

1

Funding Rounds

$2.5m

Money raised

Toast Ale is a London-based brewery using surplus fresh bread to brew beer and dedicating their profits to charities working to create greater efficiency in the food supply system.

5

Funding Rounds

$191.8m

Money raised

The EVERY Company (formally Clara Foods) is a biotechnology company founded by two New Harvest community members David Anchel and Arturo Elizondo in 2014. The company is based out of San Francisco, California and manufactures animal- free proteins using using yeast bio-fermentation techniques fore use in food products.

8

Funding Rounds

$286.6m

Money raised

SparkCognition is an artificial intelligence and cybersecurity company offering cognitive computing analytics for the information technology, operational technology, and the internet of things (IoT) industries.

10

Funding Rounds

$28.5m

Money raised

Membrion is a Seattle-based clean technology company and developer of flexible ceramic ion exchange membranes capable of being used in wastewater cleaning and in energy storage solutions.

Location:

Key people:

3

Funding Rounds

$145.0m

Money raised

Cala Health offers bioelectronic medicines, medical devices, and neurotherapeutics for managing chronic health conditions.

Key people:

8

Funding Rounds

$2.0b

Money raised

Allbirds is a startup company manufacturing wool footwear.

13

Funding Rounds

$1.1b

Money raised

Spiber, Inc is a private biomaterials company using industrial biotechnology to develop silk.

6

Funding Rounds

$129.3m

Money raised

AMSilk is a Munich-based synthetic biology company that produces fibers made from the same protein as spider silk.

Industries:

Location:

Key people:

3

Funding Rounds

$80.7m

Money raised

ZeroAvia is an aerospace company developing practical zero emission aviation powertrains using hydrogen power.

7

Funding Rounds

$21.2m

Money raised

Wild Earth is a biotechnology company using cellular agriculture to produce high-protein pet food.

1

Funding Rounds

$32.0m

Money raised

Air Protein is a Berkeley-based biotechnology company producing protein with microorganisms that are fed carbon dioxide in a mission to replace animal agriculture.

12

Funding Rounds

$6.9b

Money raised

Northvolt develops sustainable lithium-ion batteries in conjunction with R&D, industrialization, and recycling to support clean energy.

1

Funding Rounds

$25.0m

Money raised

Hungry Planet is a food technology startup company founded in 2016 by siblings Todd and Jody Boyman. Hungry Planet is located in St.Louis, Missouri, and produces plant-based meats. The company offers beef, Italian sausage, chorizo, chicken, pork, crab and turkey - available in chubs (ground), crumble and patties.

Key people:

6

Funding Rounds

$366.0m

Money raised

NotCo is a food science company located in Santiago, Chile, making plant-based Greek yogurt, milk, cheese and mayonnaise, with the help of their artificial intelligence software called Giuseppe.

4

Funding Rounds

$2.2m

Money raised

Scope 5 is a Seattle-based software company offering sustainability reporting and collating services to help companies achieve greater sustainability in their operations and offer companies reporting on sustainability and related efforts where necessary.

Location:

Key people:

2

Funding Rounds

$500.0k

Money raised

Ocean Hugger Foods is making a plant-based raw tuna substitute called Ahimi out of a mixture of 5 ingredients; tomatoes, filtered water, soy sauce, sesame oil, and sugar. The company is located in New York City, New York and was founded in 2015.

3

Funding Rounds

$5.3m

Money raised

Minimum is a carbon tracking and carbon offsetting company

Location:

Key people:

10

Funding Rounds

$876.0m

Money raised

Climeworks is a clean technology company that has developed technology for carbon dioxide (CO2) capture from ambient air. It was founded in 2009 and is located in Zurich, Switzerland.

Location:

Key people:

11

Funding Rounds

$262.6m

Money raised

BlocPower is a Brooklyn-based provider of a platform for energy efficiency and management for commercial and residential buildings.

2

Funding Rounds

$3.2m

Money raised

SuperMeat is an Israeli biotechnology company, founded on December 15, 2015. SuperMeat is working to develop chicken meat products cultured from extracted chicken cells.

3

Funding Rounds

$60.0m

Money raised

Uncommon, formerly known as Higher Steaks, is a cellular agriculture company based in London, England founded in 2017 by Benjamina Bollag, Stephanie Wallis and David Hay working to develop pork and other meat products using cellular agriculture.

Key people:

8

Funding Rounds

$1.1b

Money raised

Pivot Bio is a company that creates technology that is focused on nitrogen fixation in cereal crops through microbes.It was founded in 2010 and is located in Berkeley, California.

7

Funding Rounds

$39.7m

Money raised

EmitWise helps large businesses monitor and reduce their carbon footprints.

14

Funding Rounds

$87.2m

Money raised

A medical company in Massachusetts focusing on lowering the cost of vaccine distribution.

Location:

Key people:

Sign up to access our full database

Enter your email and get access to 71,000 + technology companies you can partner with.

Join 29000+ founders, operators, and investors.