Circular Economy Startups

Obeo Biogas designs, constructs, and operates anaerobic digestion systems for dairy farms that convert manure into renewable energy, sanitized bedding, and fertilizer. The company focuses on waste-to-value solutions that reduce greenhouse gas emissions and promote circular economy practices in agriculture.

1 investor

Ocean Legacy Foundation is a Canadian-based international non-profit, founded in 2013, working to end ocean plastic pollution through its EPIC program spanning education, policy, infrastructure, and cleanup. It recovers ocean and marine plastics and converts them into recycled plastic pellets and consumer products, while offering plastic testing services and programs for the marine industry.

1 investor

OceanSaver produces microplastic-free household cleaning products including dishwasher tablets, laundry detergents, and cleaning sprays sold in major UK retailers. The company focuses on ocean safety by eliminating plastic packaging and harmful chemicals while donating from each purchase to marine habitat restoration.

1 investor

Oceanium develops proprietary seaweed-based ingredients for food, health, and materials using innovative biorefinery and green chemistry processes. The company serves the food, health, and materials industries while advancing ocean health and coastal sustainability across the Western Hemisphere.

1 investor

OceanSafe is a Swiss polymer science company that develops next-generation textile materials engineered for biodegradability and recyclability to replace conventional textiles in the fashion and apparel industry. The company partners with global brands to implement circular economy principles and offers a licensing model for its proprietary technology.

1 investor

ODIN Materials develops composite construction materials made from agriculturally sourced feedstocks. The company is a materials startup focused on creating novel sustainable building materials.

1 investor

Olam Food Ingredients supplies food and beverage ingredients and solutions to global brands, sourcing from millions of farmers through a network of manufacturing facilities and innovation centers. The company emphasizes sustainable sourcing practices and supply chain traceability.

1 investor

OK Capsule is a manufacturing-as-a-service platform that enables practitioners, health clinics, and wellness brands to create personalized supplements and deliver them directly to customers. The company provides eCommerce technology, fulfillment, compliance management, and strategic support while operating a cGMP-certified facility in Nevada.

1 investor

okom wrks labs develops regenerative building materials, focusing on load-bearing structural components made from mycelium, hemp hurd, and organic cotton as sustainable substitutes for materials tied to deforestation. The company applies regenerative design principles to construction and material science challenges.

1 investor

Olenox Corp. designs, develops, and fabricates modular structures, including container modifications and wood and steel volumetric modular builds. It positions its factory-based modular construction process as a faster, lower-waste, and lower-cost alternative for builders.

1 investor

Olio is a local sharing app that enables users to give away and receive surplus food and household items with neighbors. The platform addresses food waste and promotes reuse of goods within communities.

1 investor

Oly provides inventory management software for second-hand fashion retailers and resellers to list and sell items across multiple online channels. The platform helps vintage and thrift shop owners automate their online sales operations.

1 investor

1% for the Planet certifies that member businesses donate at least 1% of annual sales to environmental organizations, preventing greenwashing through verification of contributions. The organization works with companies across industries to accelerate environmental impact.

1 investor

Onima is a biotechnology laboratory that upcycles food industry waste, starting with brewer's yeast from beer production, into complete, nutrient-rich foods. It offers brewers a large-scale solution to repurpose their yeast by-product back into the human food chain.

1 investor

Open Water is a beverage brand that sells purified water with added electrolytes packaged in recyclable aluminum cans as an alternative to plastic bottles. The company emphasizes sustainability across sourcing, packaging, and carbon offsetting, and offers a direct subscription for recurring deliveries.

1 investor

Orange Fiber produces sustainable textile fibers, yarn, and fabric made from citrus juice by-products ("pastazzo") for fashion brands and designers, extracting cellulose from citrus pulp at its Sicilian sites and processing it into fiber via a partnership with the Lenzing Group. The company holds a registered cellulose extraction license and trademark for its Made-in-Italy circular fabrics.

1 investor

Orbit is a marketplace and services database for the circular construction sector that connects buyers and sellers of salvaged, refurbished, and surplus construction materials, while also facilitating connections to specialized service providers. The platform aims to reduce construction and demolition waste, support material reuse, and grow the green economy in the US and Canada.

1 investor

Organic Basics is a clothing company that manufactures products using sustainably sourced materials including organic cotton, recycled nylon, and wood-based fibers like TENCEL and ECOVERO. The company prioritizes certified materials and environmental responsibility in its production processes.

1 investor

Organic Mondays provides menstrual health care with wall-mounted dispensers and organic, plastic-free period products supplied in bulk to businesses, schools, and sports venues. It positions the offering around sustainability and helping organizations meet ESG targets.

1 investor

ORGANOID creates sustainable surfaces and products from natural and recycled materials, combining innovation with design. The company serves customers in architectural and interior design markets with climate-neutral manufacturing processes.

1 investor

Origin by Ocean harvests invasive algae blooms to create bio-based ingredients for cosmetics, food, and textile industries through a proprietary biorefining process. The company addresses ocean pollution and ecosystem degradation while producing sustainable, regenerative materials.

1 investor

Original Beans sources rare cacao beans from rainforests and produces craft chocolate using regenerative business practices. The company partners directly with cacao growers to promote sustainability and environmental stewardship in the chocolate industry.

1 investor

Oritain provides supply chain traceability and verification services using forensic analytical techniques to authenticate products and combat fraud, serving organizations across industries seeking to verify supply chain integrity and sustainability claims.

1 investor

Ortec Group is an engineering and works integrator serving industrial companies and public authorities, handling design engineering, on-site fabrication and assembly, facility maintenance, and waste treatment. The company operates across various industrial and environmental markets in France and internationally.

1 investor