69 Best Circular Economy Startups to Watch in 2025

The Definitive Seedtable Ranking of Circular Economy 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 106 start-ups with an aggregate funding of $6.3b. The average funding per company in this subset is $91.2m.

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

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8

Funding Rounds

$406.4m

Money raised

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

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.

2

Funding Rounds

$37.0m

Money raised

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

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:

14

Funding Rounds

$87.2m

Money raised

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

Location:

Key people:

3

Funding Rounds

$113.0m

Money raised

Natural Fiber Welding is a Peoria, Illinois-based company developing a scalable fabrication platform that can offset the global dependence on petroleum-based, human-made materials.

Location:

Key people:

4

Funding Rounds

$95.9m

Money raised

Olio is a London-based sharing company working to solve the problem of food waste and hunger.

Location:

1

Funding Rounds

$2.9m

Money raised

Stuffstr is a London-based recommerce technology company, founded by John Atcheson in 2014.

Key people:

4

Funding Rounds

$14.0m

Money raised

A biotechnology company developing and commercializing spider silk for textiles and performance polymers. Kraig Biocraft Laboratories uses genetic engineering to produce recombinant spider silk based fibers on an industrial scale.

Industries:

Key people:

7

Funding Rounds

$151.6m

Money raised

A carbon sequestration technology and bioplastics company based in Huntington Beach, California, founded in 2003, that uses their technology to capture carbon from greenhouse emissions for production of bioplastics.

1

Funding Rounds

$3.0m

Money raised

FashionTech company using Artificial Intelligence for wardrobe management

Location:

Key people:

3

Funding Rounds

$54.4m

Money raised

Vitrolabs is a San Francisco based company developing lab-grown leather and pelts for fashion and interiors, with aspirations to use their platform to grow human organs.

Key people:

9

Funding Rounds

$21.0m

Money raised

A for-profit blockchain-as-a-service software company aiming to help solve extreme poverty.

9

Funding Rounds

$40.9m

Money raised

Pili is a biotechnology company using microorganisms fed sugar to synthesize commercial quality dyes.

Location:

Key people:

6

Funding Rounds

$28.6m

Money raised

Evrnu is a Seattle-based developer of technology to recycle cotton garment waste into renewable textiles.

Key people:

4

Funding Rounds

$196.7m

Money raised

Thredup is a San Francisco-based company.

1

Funding Rounds

$28.0m

Money raised

Colorifix is developing a revolutionary dyeing process to help the textile industry dramatically reduce its environmental impact.

2

Funding Rounds

$68.0m

Money raised

Bottle system offering scent-flavored water to enhance drinking experience.

Location:

Key people:

1

Funding Rounds

$1.0m

Money raised

Sulapac is a fully biodegradable material innovation made of sustainably sourced wood and plant-based binders.

1

Funding Rounds

$12.8m

Money raised

Circularise is a Netherlands-based company helping plastic manufacturers, brands, and original equipment manufacturers (OEMs) to trace raw materials from source, into parts, and ultimately to end products, using blockchain and other innovative technologies.

Location:

Key people:

2

Funding Rounds

$13.5m

Money raised

Spoiler Alert is a B2B technology company making a software platform for CPG brands to manage sales of excess and short-dated food inventory, recovering value and increasing sustainability.

Location:

Key people:

4

Funding Rounds

$38.8m

Money raised

Winnow Solutions is a company founded in 2013.

6

Funding Rounds

$35.5m

Money raised

Greyparrot use deep learning and computer vision to accurately classify different types of waste materials.

Location:

Key people:

4

Funding Rounds

$1.8m

Money raised

A company transforming food waste into PHA biodegrdable plastics

Key people:

4

Funding Rounds

$9.8m

Money raised

Aceleron is a clean technology company that aims to empower global communities by increasing access to energy storage solutions for its customers.

Location:

Key people:

8

Funding Rounds

$7.8m

Money raised

Raylo is a circular device subscription platform founded in 2019 by Karl Gilbert, Jinden Badesha and Richard Fulton .

Location:

Key people:

2

Funding Rounds

$43.0m

Money raised

Outdoor Voices is a company founded in 2014 by Cheryl J. Tyler.

7

Funding Rounds

$124.0m

Money raised

TIPA® is a developer and producer of fully compostable flexible packaging solutions.

Location:

Key people:

2

Funding Rounds

$40.0m

Money raised

Developer of cutting-edge DNA techniques to monitor biodiversity.

Location:

Key people:

2

Funding Rounds

$31.7m

Money raised

Cuyana is a e-commerce and women's fashion brand focused on women's essentials.

Industries:

Location:

Key people:

1

Funding Rounds

$6.0m

Money raised

LOLIWARE has pioneered the world's leading seaweed technology to replace single-use plastics. LOLIWARE's products harness LIST (LOLIWARE Intelligent Seaweed Technologies) to create single-use items designed to disappear. LOLIWARE is poised to completely replace single-use plastics beginning with the launch of the company's new seaweed-based straw in 2019. LOLIWARE's straw looks, feels, and acts like plastic, but is made from 100% food-grade materials. It is designed to disappear either through composting or natural processes.

1

Funding Rounds

$1.6m

Money raised

Queen of Raw is a marketplace to buy and sell sustainable and deadstock fabrics and textiles, enabling excess stock to become another's sustainable materials.

Key people:

4

Funding Rounds

$32.7m

Money raised

Rheaply is a company founded in 2015 by Garry Cooper, Tyler Skelton and Peter Tucker.

Key people:

3

Funding Rounds

$23.4m

Money raised

Recycleye Ltd is an AI-automated waste management founded in 2019.

4

Funding Rounds

$5.3m

Money raised

WOODOO manufactures a new wood material, translucent, weatherproof, stronger and durable, transforming lower grade wood species into high-performance materials.

Location:

Key people:

1

Funding Rounds

$9.0m

Money raised

Lumi is a printmaking supply company.

1

Funding Rounds

$5.5m

Money raised

MOLG enables circular manufacturing, ensuring one products end is another's beginning.

$16.0m

Money raised

MOGU manufactures materials and technologies that are based on fungi as main constituent.

3

Funding Rounds

$41.0m

Money raised

Frank & Oak is a company founded in 2012 by Hicham Ratnani.

Key people:

1

Funding Rounds

$2.5m

Money raised

Renewal Mill is an upcycled food company that fights climate change and global food loss by upcycling byproducts from food manufacturing into superfood ingredients and premium, plant-based pantry staples.

Key people:

2

Funding Rounds

$24.1m

Money raised

Vericool is replacing plastic coolers and packaging with plant-based products

4

Funding Rounds

$57.7m

Money raised

Again provides supply chain infrastructure for circular packaging.

2

Funding Rounds

$10.0m

Money raised

Aunt Flow is a Columbus, Ohio-based company founded by Claire Coder.

Location:

Key people:

1

Funding Rounds

$2.7m

Money raised

Reflaunt allows retailers to offer a new service to their customers: the possibility to resell, donate or recycle their past purchases in a click directly from the retailer's e-commerce site.

1

Funding Rounds

$18.0m

Money raised

Framework builds repairable, upgradeable consumer electronics products that are designed to last.

Key people:

1

Funding Rounds

$15.0m

Money raised

Yulex is a company founded in 2017 by Jeffrey A. Martin.

1

Funding Rounds

$36.2m

Money raised

Pulpac, founded in 2018, develops Dry Molded Fiber, manufacturing technology for low cost, high-performance fiber-based packaging and single-use products.

2

Funding Rounds

$12.4m

Money raised

Shellworks is on a mission to make plastic waste a thing of the past by creating truly compostable packaging solutions.

1

Funding Rounds

$35.0m

Money raised

Twig is a fintech that turn things into cash instantly.

1

Funding Rounds

$17.7m

Money raised

Grocery delivery service focused on reducing waste through return and reuse practices.

Industries:

Location:

3

Funding Rounds

$13.7m

Money raised

Modern Synthesis is a biomaterials producer for textile industry founded in 2019 by Ben Reeve.

Location:

Key people:

1

Funding Rounds

$2.5m

Money raised

unspun uses body scanning technology to manufacture bespoke jeans.

Key people:

2

Funding Rounds

$2.7m

Money raised

Recommerce platform - E-commerce, SaaS and on-demand buyback of consumer electronics

2

Funding Rounds

$11.0m

Money raised

Xampla is a Cambridge, Cambridgeshire-based company founded in 2018 by Tuomas Knowles.

1

Funding Rounds

$2.0m

Money raised

ADAY is a London-based company founded in 2015 by Nina Faulhaber.

Location:

Key people:

4

Funding Rounds

$42.8m

Money raised

Summersalt is a company founded in 2017.

2

Funding Rounds

$15.2m

Money raised

Cudoni is a second-hand luxury resale marketplace founded in 2017 by James Harford-Tyrer.

Location:

Key people:

2

Funding Rounds

$445.0m

Money raised

Operator of a clothing brand intended to offer premium performance apparel inspired by the active Coastal California lifestyle.

1

Funding Rounds

$25.0m

Money raised

Paptic is a manufacturing company producing eco-friendly packaging materials founded in 2015.

Location:

2

Funding Rounds

$230.0k

Money raised

Lyfa delivers grocery items to people's doors in reusable packaging that is then picked up during the next delivery.

1

Funding Rounds

$5.5m

Money raised

TrueCircle is building a marketplace to support waste processing facilities in selling the verified material they reclaim.

1

Funding Rounds

$300.1k

Money raised

Spare-it enables access to live waste intelligence upstream.

1

Funding Rounds

$6.9m

Money raised

Recyda is a packing management platform founded in 2020 by Vivian Loftin, Christian Knobloch and Anna Zießow.

Key people:

2

Funding Rounds

$6.1m

Money raised

Producer of bio-based water-soluble polymer alternatives to plastics.

1

Funding Rounds

$7.9m

Money raised

Network providing reusable containers to replace disposable food packaging.

2

Funding Rounds

$3.8m

Money raised

Food and nutraceutical products and sustainable materials made from sustainably-sourced seaweed.

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