Circular Economy Startups

LanzaTech converts carbon-rich gases from industrial sources like steel mills and landfills into fuels and chemicals using synthetic biology. The company serves heavy industries seeking to reduce emissions and create value from waste streams.

7 investors

Material Evolution develops low-carbon cement using a proprietary alkali fusion process that operates at ambient temperatures, significantly reducing emissions compared to conventional cement production. The company serves architects, engineers, and construction firms seeking sustainable alternatives to traditional cement, using AI and machine learning to optimize material selection and manufacturing efficiency.

7 investors

Mint develops a chemistry-based process to recover critical minerals from electronic waste, avoiding high-temperature smelting. Founded in New Zealand, it works with technology manufacturers to supply responsibly sourced critical metals for manufacturing supply chains.

7 investors

MycoWorks produces Reishi, a premium biomaterial made from Fine Mycelium, used as a sustainable leather alternative in furniture, design, and automotive products. The company works with designers, studios, and brands such as Ligne Roset and Cadillac to create finished goods.

7 investors

PACT develops earth-positive biomaterials for the fashion industry, scaling them up for supply to partner brands. The company runs a research and development laboratory and pilot facilities where scientists, engineers and designers create sustainable materials.

7 investors

Raylo operates a subscription platform for electronics brands, allowing consumers and businesses to access devices through flexible rental and upgrade options. The company offers a marketplace connecting brands with subscription-oriented customers and embedded payment solutions for direct-to-consumer and ecommerce channels, focused on circular economy principles.

7 investors

Renewable Metals develops an alkali-based recycling process that recovers lithium, nickel, cobalt, and other critical minerals from end-of-life lithium batteries for reuse in new battery manufacturing. The company serves battery recyclers and participants in the global lithium battery supply chain.

7 investors

Repurpose sells plant-based, compostable household products such as trash bags and toilet paper marketed as non-toxic and eco-friendly, sold direct to consumers via subscription and one-time orders. The products emphasize plant-based materials, no added PFAS, BPA-free composition, and carbon-neutral shipping.

7 investors

RoadRunner provides tech-enabled waste and recycling services to businesses across all 50 U.S. states, using data and artificial intelligence to improve recycling rates and reduce costs. The company modernizes commercial waste management through software and operational expertise in the environmental services industry.

7 investors

Shameless Pets makes soft, chewy dog treats formulated with real beef and upcycled ingredients like sweet potatoes, free from grain, corn, and soy. The treats are marketed to pet owners as gut-friendly, protein-rich snacks and are made in the USA.

7 investors

Sheets & Giggles manufactures sustainable lyocell bedding made from eucalyptus wood pulp, using significantly less water and energy than conventional cotton production. The company sells direct-to-consumer bedding products with a focus on environmental sustainability and customer service.

7 investors

Shellworks develops VIVOMER, a compostable material made by collaborating with microorganisms that produce natural polymers, designed to perform like plastic but break down without leaving waste. The company works with manufacturers using existing infrastructure to replace conventional permanent plastics.

7 investors

THIS manufactures consumer products positioned as environmentally and socially responsible, with B Corp certification validating both product and business practices.

7 investors

Who Gives A Crap sells toilet paper made from 100% bamboo, including premium double-length rolls, direct to consumers. The company donates 50% of its profits to sanitation and community projects.

7 investors

X Fuel develops alternative transport fuels using patented technologies that compete with fossil fuels on environmental and economic metrics. The company focuses on decarbonizing the transportation industry through sustainable, low-carbon fuel production.

7 investors

Mercari is a marketplace platform that enables users to buy and sell used and secondhand items, offering a wide selection of products across various categories.

7 investors

AmorSui manufactures reusable personal protective equipment (PPE) designed to be more durable, sustainable, and inclusive than traditional disposable options. The company serves healthcare workers and other occupational safety professionals with machine-washable PPE that incorporates circular economy principles and inclusive sizing.

6 investors

Another Tomorrow is a sustainable apparel brand selling tailored clothing such as trousers, with a focus on traceability, living wage policies, and materials like lyocell and organic cotton. Its products are made in Italy and sold directly to consumers online and through a Soho flagship store.

6 investors

Astroscale develops on-orbit servicing solutions, providing end-to-end services covering mission licensing, spectrum acquisition, insurance, and operations to support the circular space economy. It serves satellite and space mission operators globally.

6 investors

Avantium develops bio-based materials and polymer technologies, including PEF and other renewable alternatives to conventional plastics, serving the packaging and materials industry.

6 investors

Avertana extracts minerals and chemicals from steel manufacturing waste slag using chemical processes, producing sustainable raw materials for industrial manufacturers. The company's circular economy technology replaces conventional mining and refining with waste-derived alternatives that have lower environmental impact and cost.

6 investors

Back Market is an online marketplace specializing in refurbished electronics. The platform enables consumers to buy refurbished devices across 17 countries, promoting circular economy principles and reducing electronic waste.

6 investors

Birch Biosciences develops enzyme-based plastic recycling technologies using green chemistry and machine learning to transform plastic waste into reusable material. The company targets the plastic resin market with solutions for industrial and commercial recycling applications.

6 investors

BrandVerge is an advertising agency that provides media planning, buying, and organic social/influencer campaign management for brands, including DTC companies. It operates with a "leadership + lean" model in which clients work directly with senior media decision makers.

6 investors