Circular Economy Startups

Green Dot Bioplastics is a bioscience company that develops and produces biobased, compostable, and recyclable plastics, including its Terratek line of bioplastics. It offers product development and materials expertise to companies making sustainable products.

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Heartwood Biomass processes wood underutilized by the traditional logging industry into products such as firewood, poles, and clean energy. Its work supports forest restoration, reduces wildfire risk, and lowers waste while sustaining jobs in a rural, natural-resource-dependent community.

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HERA Materials (formerly Atacama Biomaterials) develops WoodPack (WPK), a wood-fiber-based, recyclable and compostable paper film that replaces single-use fossil-plastic packaging, using proprietary materials, AI-enabled formulation, and retrofit manufacturing systems. Founded in 2019 and born from MIT, the company operates a manufacturing facility in Chile.

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Higher Wire Inc. designs and manufactures lithium-ion energy storage systems (ESS) using domestically-sourced cells and components, with a focus on extending the useful life of these systems through a circular economy model. The company operates a manufacturing facility in Phoenix, Arizona, and targets the U.S. clean energy market with affordable, standardized storage solutions.

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Icorium is an advanced separation technology company that recovers high-purity refrigerants from complex mixtures using ionic liquid-based extractive distillation, hollow fiber membranes, and pressure swing adsorption. Its platform serves reclaimers, contractors, OEMs, and producers seeking industrial-scale refrigerant recovery and a circular refrigerant economy, and it operates as a University of Kansas spinout.

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In House makes made-to-order and bespoke wardrobe essentials for women, produced at its atelier from sustainable and regenerative materials. It operates on a made-to-order model with limited inventory and offers personalized appointments at its NYC studio.

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Indoor Harvest develops and acquires businesses focused on hemp-based products, spanning nutraceuticals, industrial fibers, and plastics as alternatives to hydrocarbon-based products. The company positions itself in the sustainable materials and consumer products space with an international market focus.

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Infinity Water Solutions is a US-based water management and sustainability technology company that reclaims and recycles wastewater. It operates a closed-loop, water-sharing model to recycle collected wastewater for reuse and reduce freshwater dependence across industries.

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Innovative Health is an FDA-regulated single-use medical device reprocessing company specializing in cardiology and electrophysiology devices, gaining FDA clearance to reprocess and resell used catheters and other single-use devices. It serves hospitals in the United States, helping electrophysiology labs cut per-procedure device costs, such as those for atrial fibrillation treatments, by roughly 30%.

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Intersect Agriculture operates a vertical indoor farm that rears insects to convert waste into nutrients through a net carbon-negative process. The company works in sustainable agriculture and food production.

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IperionX produces titanium metals using proprietary processes (HAMR, HSPT, and Green Rutile) at its titanium manufacturing campus, with an emphasis on domestic supply and recycled feedstock. The company operates in the advanced materials and metals manufacturing industry.

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ITB Packaging designs custom expendable and returnable packaging systems—including collapsible bulk bins, paper and fabric dividers, and integrated dunnage—that maximize part density to reduce freight, labor, and storage costs. It primarily serves the automotive industry, working with OEMs and Tier 1 and 2 suppliers, and also supplies injection molding, e-commerce, and food and beverage manufacturers.

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Jefferson Timber Cooperative sources logs from sustainably managed forests and, through a network of local sawyers and builders, mills them into lumber and wood products such as posts, beams, flooring, siding, and slabs. Operating as a business cooperative on Washington's Olympic Peninsula, it aims to build a local, low-waste wood economy that keeps timber processing and jobs within the region.

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Kintra develops bio-based, compostable synthetic fibers and resins as an alternative to conventional petroleum-based textiles, aimed at reducing pollution in the apparel supply chain. The company produces yarn and fabric materials for fashion and apparel manufacturers.

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KleanTu develops, deploys, and commercializes decentralized wastewater treatment technologies and sustainable water and wastewater management systems, including natural engineered treatment methods that remove nitrogen, phosphorus, priority pollutants, and pharmaceutical and personal care products. It serves industrial and municipal water and wastewater operations, integrating technologies into existing infrastructure to meet discharge permit limits.

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LOLI (Living Organic Loving Ingredients) makes food-grade, organic skincare products from responsibly sourced superfood ingredients that customers blend into their own beauty rituals. The brand emphasizes ethical sourcing, supply-chain monitoring against trafficking, and earth-friendly reusable and compostable packaging.

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Looptworks operates a textile circularity service in the United States, using fiber-to-fiber recycling and downcycling to turn excess materials and textile waste into new fibers. It works with fashion and apparel brands, municipalities, manufacturers, and sectors like hospitality and medical, and supplies circular fibers to clothing brands, spinning mills, and the non-woven market.</parameter> <parameter name="founders">[{"full_name": "Scott", "title": "Founder"}]

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Make It Cute designs sustainable children's playhouses ("Play Decor") made with responsible materials, intended to blend with home interiors for parents and caregivers. The brand combines children's play products with a philanthropic, give-back model.

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Momentum Technologies develops modular, localized processing technology to recover high-purity, reusable critical minerals and metals from sources such as spent batteries and electronic waste. It serves energy storage industries, gigafactories, recyclers, waste handlers, and original equipment manufacturers.

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Northann Corp uses 3D printing technology to produce interior finishes such as flooring, wall panels, and decorative panels, incorporating recycled ocean plastic and an AI system (Envision) that replicates wood color, grain, and patterns for digital printing. The company positions itself as a one-stop interior decorating solution provider.

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A company that develops and sells environmentally friendly, affordable consumer products under a "Green Scene" line and pursues retail partnerships alongside an acquisitions and mergers division.

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Phoam Labs makes a compostable, plant-based (PLA) floral foam certified by TÜV Austria for industrial compostability, developed as an alternative to conventional phenolic floral foam. It is aimed at florists in the floral industry seeking a more sustainable option.

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ProAmpac develops flexible packaging products for brands across a global marketplace, with an emphasis on sustainable packaging through its ProActive Sustainability program. The company serves consumer and industrial brands seeking packaging solutions.

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PRTI operates in waste tire disposal and recycling, addressing the environmental problems of burning, burying, and grinding tires. The company positions itself as an alternative to conventional waste tire disposal methods in the United States.

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