Circular Economy Startups

BlockTexx recovers polyester and cellulose from discarded textiles and clothing through commercial-scale processing technology. The company serves fashion businesses, councils, and households seeking to divert textile waste from landfill and support circular economy practices.

1 investor

Everbloom develops next-generation noble fibers derived from protein waste as biodegradable, recyclable alternatives to synthetic and animal-based textiles like cashmere, wool, and silk. It targets luxury fashion supply chains, partnering with textile mills to provide sustainable materials with lower land, water, and greenhouse gas footprints.

1 investor

Bloxy develops a bio-based, biodegradable oxygen-scavenging material that extends the shelf life of fresh food to reduce food waste. Its technology is applied as a water-based coating for use in plastic, paper, or bioplastic packaging films, serving the food packaging industry.

1 investor

Blue Eden CleanTech Solutions designs, builds, and services custom turnkey systems for recycling and wastewater treatment, including equipment to remove suspended solids, destroy complex organic compounds, and convert carbon waste into bio-energy. It serves industrial operators seeking resource recovery and reuse from complex and composite waste streams.

1 investor

BlueLabs produces water purification filters and eco-friendly water treatment materials from recycled oyster shells, addressing water contamination and circular economy challenges. The company transforms agricultural waste into high-value filtration products that remove heavy metals and reduce carbon emissions compared to traditional activated carbon processes.

1 investor

Blue Whale Materials operates a lithium-ion battery recycling facility that recovers valuable metals through a proprietary closed-loop process. The company serves the battery and automotive industries by recycling used li-ion batteries in the United States.

1 investor

BlueChem is an incubator and business park facility for sustainable chemistry startups and scale-ups in Belgium, providing labs, offices, and workspace for companies to scale from lab to industrial production. It operates as a public-private partnership bringing together industry, academics, and government in the Antwerp chemical cluster.

1 investor

BlueLots runs online wholesale and liquidation auctions where buyers bid on bulk lots of surplus and returned merchandise across categories like apparel, electronics, and accessories. It targets resellers who source inventory for eBay, Amazon, or Shopify stores.

1 investor

BOAL Group manufactures modular aluminum greenhouse systems, insect netting, climate screens, and insulation components for high-tech covered cultivation. The company serves greenhouse builders and growers globally, with in-house aluminum extrusion facilities and a portfolio of integrated solutions designed to optimize crop yield while minimizing resource consumption.

1 investor

Bob's Containers converts shipping containers into residential and commercial spaces. The company serves homeowners and business owners seeking affordable housing and commercial solutions.

1 investor

Bocoloco provides technology for packaging reuse and traceability, including a management platform (GEAR) and field traceability terminals (TTL, TCE) that track operational and financial flows of reusable packaging. It serves retailers, food-industry manufacturers, and other supply-chain actors to help them manage deposit systems and comply with French packaging reuse regulations (REP).

1 investor

An online and in-person used bookstore selling gently used books, CDs/music, and movies/DVDs, with bundle deals and bargain pricing for general readers. The company partners with schools, libraries, and nonprofits to keep media in circulation and reduce landfill waste, and operates as an independent Colorado-based shop.

1 investor

Boomerang Labs runs programs for businesses working in the circular economy, offering post-program coaching and ongoing support to alumni. It aims to expand the circular economy ecosystem.

1 investor

BOSK Bioproducts develops, manufactures, and distributes biobased, compostable, food-contact certified PHA-based compounds and finished products under the REGEN™ brand as an alternative to petrochemical plastics. Its proprietary technology produces PHA (polyhydroxyalkanoates) from non-food-grade industrial byproducts for companies seeking to reduce the environmental impact of their products.

1 investor

bottleplus manufactures a portable water carbonation system called spark that allows users to create sparkling water on-demand anywhere using integrated CO₂ cartridges. The product is designed for consumers seeking sustainable hydration alternatives with optional flavoring options.

1 investor

Bower is a smartphone app that uses barcode scanning and AI image recognition to help consumers identify household items and packaging and learn how to recycle them, rewarding proper waste sorting with cash and points through challenges and drop-off location finding. The Swedish company gamifies recycling for individual users worldwide and partners with brands such as Orkla to reward recycling.

1 investor

Boxbee provides on-demand urban storage and delivery services for residents in California, storing smaller items rather than furniture in secure warehouses. The company operates as a storage and retrieval service backed by Corodata, a records management firm established in 1948.

1 investor

Sort A Bricks offers an AI-powered service that sorts used mixed LEGO® bricks shipped in by customers, identifies which sets can be rebuilt, sources any missing parts, and returns restored, ready-to-build sets. The company serves consumers in Western Europe, including Germany and France, with an R&D center in Lithuania.

1 investor

Braven develops waste plastic processing facilities using its proprietary Braven Reactor Train technology to convert plastic waste into energy at commercial scale. The company serves waste management operators and investors seeking sustainable solutions with financial returns.

1 investor

BrewNature (B-Nature Inc.) builds rapid composting vessels that use proprietary microbial and mechanical technology to convert organic waste into bio-fertilizer in about five days. It serves industrial and community clients such as food producers, colonies, and parks in Canada with closed-loop systems for organic waste management and project design, inspection, and sustainability consulting.

1 investor

Bridge Green Upcycle develops proprietary technology for lithium-ion battery recycling, including battery health monitoring, second-life applications, and the extraction of black mass and precursor materials. The company focuses on end-of-life battery management and the circular economy of the battery ecosystem within the clean energy sector.

1 investor

Brightplus develops eco-friendly coating solutions for luxury glass packaging, including thermolusters with customizable metallic effects for perfume and beauty brands. The company partners with Pochet du Courval to integrate sustainable decorative coatings into high-end glass containers without harmful chemicals or rare earth elements.

1 investor

Brightwater Tools develops regenerative sanitation solutions, focusing on practical technologies and systems that support waste resource recovery and environmental restoration.

1 investor

Brisbane Tool Library is a membership-based lending library that lets members borrow thousands of tools and other items throughout the year. It operates on a circular economy model and relies on volunteers and donated items.

1 investor