Circular Economy Startups

Pyronexus provides integrated, turnkey project development services for biochar production facilities, managing feasibility studies through commissioning and ongoing operations. The company serves project developers and operators in the biochar and biomass processing sector.

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Remixers manufactures precision static mixers for adhesive dispensing systems, particularly for cartridge and robotic arm applications. The company specializes in compact mixer technology designed to minimize waste while maintaining consistent two-component mixing performance.

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ReElement develops purification and separation technology for refining critical minerals into high-purity materials at low cost. The company operates globally with a focus on deploying its technology platform in mineral-rich African nations to support local advanced manufacturing.

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Upcycled Foods, Inc. (ReGrained) supplies upcycled food ingredients derived from byproducts like brewers' spent grain and offers innovation services that help food, beverage, and agriculture companies turn waste streams into new products and revenue. It serves CPG brands, ingredient suppliers, agricultural processors, retailers, and foodservice operators across the food system.

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Renegade Plastics develops low-carbon coated fabrics as an alternative to PVC-coated industrial textiles, made without PVC, phthalates, PFAS, or VOCs while remaining UV, chemical, and weather resistant. The fabrics serve industrial, sports, and agriculture applications and work within existing fabrication systems.

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Renu develops a modular molecular recycling technology (RVRS.X) that breaks down mixed plastic waste into its molecular building blocks to produce Circulon, a circular material used to make virgin-quality plastic resins. The system targets plastic circularity through on-site, decentralized processing for waste and plastics producers.

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Revino develops a circular economy system for the wine industry using returnable, reusable glass bottles and wash infrastructure to replace single-use packaging. The company serves wine producers and consumers seeking sustainable alternatives to disposable bottles.

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RenX operates a materials processing and logistics platform that manages the full lifecycle of engineered soils, compost, and mulch—from sourcing and processing through distribution—serving agricultural, construction, landscaping, and municipal customers. The company combines factory operations in Florida with a fleet-based logistics division (Zimmer Equipment Inc.) for inbound waste collection and outbound product distribution.

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San Joaquin Renewables converts orchard and organic waste residues into renewable compressed natural gas (CNG) for use as transportation fuel. The company is developing a flagship renewable natural gas plant in McFarland, California.

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Santana Equestrian Private Financial is a publicly traded regenerative agriculture and environmental services company that restores degraded land using localized biomass recycling and soil regeneration. It runs closed-loop systems converting equestrian, yard, and organic waste into soil amendments, and offers soil banking and environmental services aimed at strengthening water and food system resilience.

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Soleil Toujours makes SPF-powered skincare and sun care products designed with sustainable, plastic-reduced packaging and reef-safe, vegan formulations. It is a consumer beauty brand focused on skincare that combines skin protection with environmental sustainability.

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Steel Dynamics is a North American steel producer and metals recycler that manufactures steel products from recycled scrap using electric arc furnaces, while also operating downstream steel fabrication and aluminum production divisions. The company serves automotive, beverage, industrial, and construction markets with differentiated product offerings and recycled-content materials.

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Suay operates a textile recycling, reuse, and repair business, including overdyeing services for garments and other textiles. It positions itself around skilled labor and a transparent model for extending the life of textiles.

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Sustainable Composites develops technologies to recycle scrap leather into new materials, creating circular supply chain solutions for companies while supporting their ESG goals. The company uses environmentally friendly processing to maximize waste utilization in the leather and composite materials industry.

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SwatchBook is a digital asset management platform and marketplace for physical materials, letting brands and suppliers organize, categorize, share, inspect, and select digital material samples with online and offline access. It targets creative, design, sourcing, and production teams and uses machine learning and trend data to reduce waste in the sourcing process.

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Synata Bio develops customizable technology solutions for hydrogen and carbon economies, enabling hard-to-abate industries to achieve decarbonization targets while reducing carbon emissions and creating value from waste resources.

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Trihaз Solutions provides healthcare compliance solutions including training programs, audit tools, and risk assessments to help medical providers meet HIPAA, OSHA, and other regulatory requirements. The company serves medical offices and healthcare organizations of varying sizes with scalable, online-accessible compliance management tools.

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Trilogy MedWaste provides regulated medical waste management, including sharps disposal, compliance training, and document destruction, helping customers stay compliant with local, state, and federal regulations. It serves healthcare organizations, government agencies, and high-volume waste generators across the United States through local teams backed by a national network.

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Uhuru Design is a Brooklyn-based furniture design firm that creates bespoke residential and high-end commercial furniture, using reclaimed and found materials with a focus on sustainability. Founded in 2004, it serves mission-driven clients across residential, hospitality, fast casual, office, co-working, architecture, and interior design markets.

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USEFULL provides a plastic-free reusable takeout container program combining tracking technology, container inventory, and launch support for college campuses across North America. It serves institutions seeking to replace single-use plastic takeout with a reuse system.

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VelociGro develops agricultural technologies designed to increase crop yields and resource efficiency for farmers. The company focuses on sustainable food production methods that reduce water usage, pesticide application, and environmental impact.

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Viable Gear develops seaweed-based bioplastics and makes SeaTwine, a compostable and marine-degradable twine intended to replace nylon and poly twine. Its products target farmers in agriculture and aquaculture as an alternative to petroleum-based plastics.

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Viking Pure manufactures on-site generation systems that produce hospital-grade disinfectants and cleaners from salt, water, and electricity for use in senior living communities, healthcare facilities, schools, fitness centers, and commercial buildings. The company's solutions replace traditional harsh chemicals with OMRI and Green Seal certified products designed to improve safety and sustainability.

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Vision Quest Gold reclaims mining tailing ponds using a patented process to restore the sites to their natural state, aiming to restore wildlife habitat and support surrounding communities. It operates in North America with a stated focus on indigenous communities and works with a team of mining engineers, geologists, and prospectors.

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