Circular Economy Startups

Continuum Powders produces high-quality metal powders for additive manufacturing and advanced industrial applications, using atomization technologies and circular manufacturing processes. Its products serve manufacturers seeking to improve supply chain resilience, reduce material waste, and meet performance standards for critical applications.

1 investor

The Cooperative Laundry operates an automated commercial laundry service that washes, presses, and folds linens for hospitality clients. Its system aims to reduce handling errors and lower water and power consumption compared with conventional equipment.

1 investor

Copra Coconuts produces frozen and fresh coconut products sourced from farms in western Thailand, freezing most items immediately after harvest to preserve taste and texture. The company emphasizes fair wages and a sustainable supply chain for its farmers and communities.

1 investor

Coralcone makes reusable menstrual cups marketed as a sustainable alternative to single-use period products such as pads, tampons and liners, with one cup replacing about five years of disposables. The company positions its product as a way to reduce ocean plastic waste and donates a portion of each sale to marine conservation.

1 investor

Cove develops PB1, a molded-fiber bottle and packaging platform that uses a multi-piece fiber structure with a biobased barrier liner to create containers recyclable in standard paper streams. The technology serves consumer packaged goods brands across categories such as beverages, alcohol, personal care, home care, and supplements, offering formats including bottles, jars, tubes, and refill pods.</parameter> <parameter name="founders">[]

1 investor

Coveris develops and manufactures paper and plastic packaging for consumer and industrial goods, focusing on product protection, preservation, and reduced environmental footprint. Its "No Waste" strategy aims to minimize the environmental impact of its packaging solutions.

1 investor

Craste manufactures green building materials, eco-friendly paper, and packaging products from agricultural crop residue using patented circular fiber technology. The company serves architects, designers, and businesses seeking sustainable alternatives to traditional materials in India and globally.

1 investor

Crushr operates a mobile dumpster compactor truck service that compacts waste in open-top containers on site, reducing the number of hauls to the landfill and lowering waste management costs. It serves manufacturing, residential and commercial construction, home remodeling, distribution centers, municipalities, recycling providers, and haulers.

1 investor

Crystal Clean is a national environmental services provider operating a network of branches across the continental United States, offering waste collection, recycling, and remediation services. It serves business customers with services such as used oil disposal, parts cleaning, wastewater vacuum truck services, PFAS remediation, and bulk wastewater management.

1 investor

CSI Leasing provides equipment leasing and lifecycle management services for IT and technology assets, helping organizations acquire, extend, restructure, and dispose of equipment across its lease term. It operates globally with 70+ offices and positions its financing around circular-economy and ESG outcomes.

1 investor

CTP Environnement provides waste treatment and environmental cleanup services, operating through multiple subsidiaries in Europe and North America.

1 investor

Cuploop offers a smart return kiosk using RFID technology that lets consumers drop off reusable cups and receive instant contactless deposit refunds by tapping a phone or card. It supplies reusable cups and RFID tags, plus a cloud-based inventory management system (LoopMate), washing/logistics services, and ESG reporting to help venues such as concerts, sports matches, and conferences run reusable container systems.

1 investor

Curbicus makes a patented handheld device paired with compostable capsules, delivered by subscription, that collects dog waste for composting. The product targets pet owners seeking a cleaner, more sustainable alternative to plastic waste bags.

1 investor

CurTec manufactures high performance plastic packaging — drums, pails, and jars — for storing and transporting critical materials such as active pharmaceutical ingredients, specialty chemicals, and precious metals. It serves the life sciences and fine chemicals industries, with product lines including biobased, recycled, UV safe, conductive, and pharma grade options.

1 investor

Provides medical waste disposal services and products, including containers for sharps, regulated medical waste, universal waste, and unused medications, plus mail-back kits. Serves healthcare facilities ranging from single-provider clinics to multi-site healthcare networks across the US.

1 investor

Cut + Clarity makes customizable fine jewelry sustainably produced in New York City using recycled gold and ethically sourced stones. The company employs immigrant craftsmen in the Diamond District and combines traditional jewelry-making with modern technologies like 3D printing and laser cutting.

1 investor

CXtec provides IT lifecycle solutions including IT asset disposition (ITAD), electronics remarketing, and reverse logistics for business clients across industries. The company focuses on secure asset recovery and sustainable technology services.

1 investor

Cycle Exchange sells used bikes that are inspected and serviced by a Cytech-accredited mechanic and warrantied, and offers a bike finder tool that matches buyers to the right frame size and bike type. It serves cyclists looking to buy pre-owned bicycles with expert advice.

1 investor

Cyclecure repairs and refurbishes electric scooters and e-bikes, offering on-site, at-home, and workshop repair services for individuals as well as after-sales, battery refurbishment, and device refurbishment services for micromobility businesses such as producers, fleet operators, and leasing providers. It also sells refurbished second-hand e-scooters and e-bikes, operating across Belgium from bases in Brussels and Antwerp.

1 investor

Cycle0 develops, owns, and operates biogas plants across Europe that convert organic waste into renewable natural gas (biomethane), producing Bio-CNG, Bio-LNG, and Bio E-Fuels for grid injection, liquefaction, and offtake contracts. It serves industrial clients in hard-to-abate sectors such as manufacturing and data centres, as well as governments seeking to meet renewable gas production targets and ESG obligations.

1 investor

Cyclicor is a deeptech material science company developing isocyanate-free and biobased polyurethanes. Its polymer materials are used for adhesives (hotmelt and liquid), coatings, elastomers, TPU, and foam.

1 investor

Cyclize develops a process that converts mixed waste and CO₂ into synthesis gas (syngas), replacing natural-gas-based syngas used in chemical processes. The company targets the chemical industry with defossilized feedstocks aimed at cost parity with fossil-derived syngas.

1 investor

Cyklos offers RecySmart Bin, a smart recycling container that uses sound recognition and AI to identify plastic bottles, metal cans, carton, and glass, rewarding citizens with points redeemable for discounts and promotions via an app. It targets businesses such as campsites, gas stations, supermarkets, and public spaces, providing data on customer purchasing and recycling habits.

1 investor

Cyrkl operates a digital marketplace for waste and residual materials in Europe and provides waste management consulting, including waste stream analysis (Circular Waste Scans) to identify CO2 and cost savings. It serves companies looking to turn waste into resources, along with market analyses and recycling technology transfer.

1 investor