37 Best Sustainable Fashion Startups to Watch in 2025

The Definitive Seedtable Ranking of Sustainable Fashion 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 37 start-ups with an aggregate funding of $5.3b. The average funding per company in this subset is $142.1m.

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

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Bolt Threads logo

Bolt Threads

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

8

Funding Rounds

$406.4m

Money raised

Modern Meadow logo

Modern Meadow

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.

9

Funding Rounds

$331.1m

Money raised

Reformation logo

Reformation

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

2

Funding Rounds

$37.0m

Money raised

Allbirds logo

Allbirds

Allbirds is a startup company manufacturing wool footwear.

8

Funding Rounds

$2.0b

Money raised

Spiber, Inc. logo

Spiber, Inc.

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

13

Funding Rounds

$1.1b

Money raised

AMSilk logo

AMSilk

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

6

Funding Rounds

$129.3m

Money raised

Vaxess Technologies logo

Vaxess Technologies

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

14

Funding Rounds

$87.2m

Money raised

Natural Fiber Welding logo

Natural Fiber Welding

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.

3

Funding Rounds

$113.0m

Money raised

Stuffstr logo

Stuffstr

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

1

Funding Rounds

$2.9m

Money raised

Kraig Biocraft Laboratories logo

Kraig Biocraft Laboratories

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.

4

Funding Rounds

$14.0m

Money raised

Newlight Technologies logo

Newlight Technologies

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.

7

Funding Rounds

$151.6m

Money raised

Vitrolabs logo

Vitrolabs

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.

3

Funding Rounds

$54.4m

Money raised

EV Biotech logo

EV Biotech

EV Biotech is a microbial cell factory (MCF) strain development company.

1

Funding Rounds

$4.7m

Money raised

Outdoor Voices logo

Outdoor Voices

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

2

Funding Rounds

$43.0m

Money raised

Cuyana logo

Cuyana

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

2

Funding Rounds

$31.7m

Money raised

Woodoo logo

Woodoo

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

4

Funding Rounds

$5.3m

Money raised

MOGU (company) logo

MOGU (company)

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

$16.0m

Money raised

Frank & Oak logo

Frank & Oak

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

3

Funding Rounds

$41.0m

Money raised

Aunt Flow logo

Aunt Flow

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

2

Funding Rounds

$10.0m

Money raised

Reflaunt Ltd logo

Reflaunt Ltd

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

$2.7m

Money raised

Yulex logo

Yulex

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

1

Funding Rounds

$15.0m

Money raised

Modern Synthesis logo

Modern Synthesis

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

3

Funding Rounds

$13.7m

Money raised

unspun logo

unspun

unspun uses body scanning technology to manufacture bespoke jeans.

1

Funding Rounds

$2.5m

Money raised

Xampla logo

Xampla

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

2

Funding Rounds

$11.0m

Money raised

ADAY (company) logo

ADAY (company)

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

1

Funding Rounds

$2.0m

Money raised

Summersalt logo

Summersalt

Summersalt is a company founded in 2017.

4

Funding Rounds

$42.8m

Money raised

Vuori logo

Vuori

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

2

Funding Rounds

$445.0m

Money raised

Organic Basics logo

Organic Basics

Brand focused on creating sustainable everyday essentials from organic cotton and recycled materials.

1

Funding Rounds

Faircraft logo

Faircraft

Faircraft is a sustainable, lab-grown alternative to animal leather founded in 2021.

1

Funding Rounds

$3.0m

Money raised

Spinnova logo

Spinnova

Spinnova has developed a new technology for making textile fibre out of wood or waste, such as leather, textile or food waste, without harmful chemicals.

2

Funding Rounds

$12.7m

Money raised

Circ logo

Circ

Circ is revitalizing the future of material technology and recycling using hydrothermal technology to separate polyester from cotton in blended materials, recovering both to be re-made into new fibers, closing the loop for fashion and textiles.

1

Funding Rounds

$30.0m

Money raised

Wolf & Badger logo

Wolf & Badger

Wolf & Badger is a Mayfair-based company founded in 2010 by George Graham.

1

Funding Rounds

$4.5m

Money raised

Lignopure GmbH logo

Lignopure GmbH

The Company produces natural degradable biopolymers from non-food sources.

1

Funding Rounds

$2.7m

Money raised

United By Blue logo

United By Blue

United By Blue is a company founded in 2010.

1

Funding Rounds

$525.0k

Money raised

Tentree logo

Tentree

Tentree is a company founded in 2012.

1

Funding Rounds

1

Funding Rounds

$16.0m

Money raised

Nisolo logo

Nisolo

Nisolo is a Nashville, Tennessee-based company founded by Patrick Woodyard.

1

Funding Rounds

$14.1m

Money raised