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The Full List of 16 Sustainability Unicorn Startups (2026)

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The sustainability sector features a diverse group of companies tackling environmental issues. Among them, battery recycler Redwood Materials has reached a $6B valuation on $4.2B in funding.

The agriculture technology sub-sector is also prominent, with companies like Farmers Business Network reaching a $4B valuation. The list also includes international firms such as Indonesia's eFishery, valued at $1.3B.

Below is the full list of 16 Sustainability unicorn startups at this time.

Top 10 Most Valuable Sustainability Unicorns

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Redwood Materials recycles end-of-life lithium-ion batteries and remanufactures them into critical anode and cathode components for new electric vehicles. They are building a circular supply chain to provide a domestic source for these materials, ultimately lowering the cost and environmental footprint of battery production.

Valuation$6B (Joined July 2021)
HeadquartersCarson City, Nevada, United States
Year Founded2017
FoundersJB Straubel
Funding Amount$4.2B
Company SizeMajor Organization (1,001-5,000)
Last Funding StatusSeries E
Top InvestorsValor Equity Partners, Eclipse Ventures, Amazon, Franklin Templeton, Fidelity

Farmers Business Network built a digital platform that connects farmers, giving them a single place to buy supplies, access financing, and market their products. They use data analytics and the power of their network to help farmers reduce costs and increase the profitability of their operations.

Valuation$4B (Joined August 2020)
HeadquartersSan Carlos, California, United States
Year Founded2014
FoundersAmol Deshpande, Charles Baron
Funding Amount$967.9M
Company SizeLarge Team (251-1,000)
Last Funding StatusVenture Round
Top InvestorsKleiner Perkins, BlackRock, Fidelity, GV, Temasek Holdings

Inari is a biotechnology company that designs seeds to build a more nature-positive food system. They develop crops that require fewer resources like water and fertilizer, helping farmers increase yields while minimizing environmental impact.

Valuation$2.17B (Joined May 2021)
HeadquartersCambridge, Massachusetts, United States
Year Founded2016
FoundersDavid Berry, Ignacio Martinez, John Casey
Funding Amount$753M
Company SizeLarge Team (251-1,000)
Last Funding StatusSeries G
Top InvestorsPavilion Capital, G Squared, Abu Dhabi Investment Authority, Acre Venture Partners, Flagship Pioneering

Ascend Elements manufactures sustainable battery materials by recycling elements from discarded lithium-ion batteries. Their patented process creates a circular supply chain by transforming battery waste directly into new cathode materials for electric vehicles.

Valuation$2B (Joined September 2023)
HeadquartersWestborough, Massachusetts, United States
Year Founded2015
FoundersDiran Apelian, Eric Gratz, Yan Wang
Funding Amount$1.8B
Company SizeMid-Size Team (51-250)
Last Funding StatusSeries D
Top InvestorsAlumni Ventures, Hitachi Ventures, National Science Foundation, Temasek Holdings, TDK Ventures

Perfect Day produces real dairy proteins that are nutritionally identical to those from cow's milk, but made without any animals. Food and beverage companies use their ingredients to create a new category of animal-free products that still deliver the taste and texture of traditional dairy.

Valuation$2B
HeadquartersBerkeley, California, United States
Year Founded2014
FoundersPerumal Gandhi, Ryan Pandya
Funding Amount$801.5M
Company SizeMid-Size Team (51-250)
Last Funding StatusSeries E
Top InvestorsK5 Global, ICONIQ Capital, SOSV, Presight Capital, Temasek Holdings

Nexii designs and manufactures high-performance building solutions that enable the rapid construction of sustainable and resilient buildings. Their system uses a proprietary material that allows for faster project completion with a significantly lower environmental impact compared to traditional methods.

Valuation$2B
HeadquartersVancouver, British Columbia, Canada
Year Founded2019
FoundersBen Dombowsky, Michael Dombowsky, Stephen Sidwell
Funding Amount$152.5M
Company SizeLarge Team (251-1,000)
Last Funding StatusVenture Round
Top InvestorsTrane, Horizon Technology Finance, Honeywell, Ben Franklin Technology Partners of Northeastern Pennsylvania, Trinity Capital

Apeel Sciences develops plant-derived technology to extend the shelf life of fresh produce. Their edible coating improves food quality and reduces waste from the farm all the way to the kitchen.

Valuation$2B (Joined May 2020)
HeadquartersGoleta, California, United States
Year Founded2012
FoundersJames Rogers
Funding Amount$719.1M
Company SizeMid-Size Team (51-250)
Last Funding StatusVenture Round
Top InvestorsInternational Finance Corporation, S2G Investments, Andreessen Horowitz, Rhapsody Venture Partners, Temasek Holdings

eFishery created an integrated platform for aquaculture, giving fish and shrimp farmers tools like IoT-powered smart feeders and management software. They also provide farmers with direct access to financing and a marketplace, building a complete ecosystem to improve yields and sustainability.

Valuation$1.3B (Joined May 2023)
HeadquartersBandung, Jawa Barat, Indonesia
Year Founded2013
FoundersChrisna Aditya, Gibran Huzaifah, Muhammad Ihsan Akhirulsyah
Funding Amount$372.9M
Company SizeLarge Team (251-1,000)
Last Funding StatusSeries D
Top InvestorsInternational Finance Corporation, 500 Global, Peak XV Partners, Endeavor Catalyst, Temasek Holdings

Spiber creates a new class of materials called Brewed Protein by using microbial fermentation to process plant-based sugars. These proteins are designed as a sustainable alternative to conventional animal-based and synthetic materials used in industries like apparel and automotive.

Valuation$1.22B (Joined September 2021)
HeadquartersTsuruoka, Yamagata, Japan
Year Founded2007
FoundersKazuhide Sekiyama, Sugahara Junichi
Funding Amount$976.1M
Company SizeLarge Team (251-1,000)
Last Funding StatusPrivate Equity
Top InvestorsJAFCO, Baillie Gifford, Fidelity International, MUFG Bank, The Carlyle Group

EcoVadis provides business sustainability ratings that help companies assess the environmental and social performance of their global supply chains. Their collaborative platform delivers scorecards and insights to drive improvements and reduce risk with procurement partners.

Valuation$1B (Joined June 2022)
HeadquartersParis, Ile-de-France, France
Year Founded2007
FoundersFrederic Trinel, Pierre Francois Thaler
Funding Amount$735.8M
Company SizeMajor Organization (1,001-5,000)
Last Funding StatusSeries C
Top InvestorsPartech, General Atlantic, CVC Capital Partners, BlackRock, Astorg

The Remaining 6 Sustainability Unicorns

The 10 most valuable companies are only part of the story. The next wave of startups has already raised a combined $2.5 billion, with most based in the United States.

They are tackling big challenges in areas like clean water, food production, and transportation. Below is a look at the other startups helping to build a more sustainable future.

Unicorn StartupCountryYear FoundedAmount RaisedValuation
Gradiant logo GradiantUnited States2013$442.4M$1B
UPSIDE Foods logo UPSIDE FoodsUnited States2015$581M$1B
VulcanForms logo VulcanFormsUnited States2015$355M$1B
Wisk Aero logo Wisk AeroUnited States2010$450M$1B
Chint New Energy logo Chint New EnergyChina2009CN¥1.5B$1B
Nature's Fynd logo Nature's FyndUnited States2012$509.6M$1B

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