Circular Economy Startups

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

1 investor

Cupffee makes edible, crunchy cookie cups designed as a sustainable alternative to disposable coffee cups, sold to consumers and businesses. The cups are vegan, GMO-free, made from locally sourced natural ingredients, and offer customizable branding for corporate customers.

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

Custom Flavors develops and manufactures customized flavors derived from natural sources for food and beverage companies of all sizes. The company offers a portfolio of over 20,000 flavors with formulation, testing, and regulatory support throughout the product development process.

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

Cyclecure provides repair and maintenance services for e-bikes and e-scooters, focusing on extending device lifespan and reducing electronic waste through a circular economy approach. The company operates in Belgium and emphasizes hassle-free service with transparent pricing and quick turnaround.

1 investor

Cycle0 is a vertically integrated developer, investor, builder, and operator of biomethane plants across Europe that converts waste into renewable natural gas to reduce carbon emissions. The company serves agriculture, waste, food, and water sector organizations seeking renewable energy solutions and emissions reductions.

1 investor

Cyclicor is a biotechnology company based in Lund, Sweden that develops sustainable alternatives for plastics and coatings. The company focuses on transitioning the chemical industry toward circular economy solutions.

1 investor

Cyclize is a University of Stuttgart spin-off that developed a plasma reactor to convert waste into reusable value, aiming to make recycling more energy-efficient. It operates in the circular economy and cleantech space.

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

D-Carbonize is a team focused on reducing environmental impact through carbon management solutions. The company works with organizations to help them track, measure, and reduce their carbon footprint.

1 investor

Daikawood makes an all-natural material formulated from wood waste particles in an aqueous medium, offering industry a water-resistant, fire-retardant alternative to plastic and conventional wood-like materials. It targets construction and consumer product applications, positioning its process as a circular-economy option that reuses unused wood waste streams.

1 investor

Daiwabo is a Japanese textile manufacturer producing fibers, nonwovens, and finished goods through an integrated system spanning R&D, raw material sourcing, manufacturing, and sales. Its products span hygiene items such as masks and diaper materials, cosmetics and skincare goods, industrial materials like construction sheets and filters, and functional apparel, serving both domestic and international markets.

1 investor

Dalmia Polypro recycles plastic waste into recycled plastic products including rPET flakes, rPET granules, and polyolefin granules for use in packaging, fashion, and other industries. The company operates a zero-landfill recycling process that processes entire plastic bottles.

1 investor

Daluma produces vegan protein powder from plant-based ingredients like rice, pea, and hemp protein, designed for muscle building and weight management. The brand targets health-conscious consumers seeking organic, additive-free protein supplements with adaptogenic compounds.

1 investor

Debongout curates and sells a regularly updated mix of vintage, new, and artisanal home décor pieces through seasonal capsule collections, targeting consumers who prioritize unique, responsibly-sourced items at accessible prices.

1 investor

Decomer Technology produces eco-friendly, water-soluble polymers used for consumer packaging, including blendable superfood packs for smoothies and water-soluble honey portion packages (Honeydrops). The company operates in the sustainable materials and packaging space with a focus on biodegradable polymer products.

1 investor

Chemisan is a chemical distributor that supplies both prime raw chemicals and recycled chemicals to industrial customers, alongside waste management and recycling solutions. The company partners with vetted suppliers and offers flexible bulk and custom packaging options to reduce production costs and carbon output.

1 investor

Delta Oil is an Egyptian waste oil management company that collects used cooking oil from households, shops, and food-and-beverage businesses through pickup services and collection points, paying suppliers in exchange. The collected oil is supplied as feedstock to biodiesel manufacturers, supporting a circular economy model.

1 investor

DELTAsort makes a retrofittable robotic sorting station built around a high-speed delta robot and AI classification models that detect and extract recyclable materials such as clear PET, colored PET, and aluminum cans from household plastic waste. It is aimed at waste sorting facilities in Europe, offering automated sorting alongside a web dashboard for wastestream analysis.

1 investor