Circular Economy Startups

PureBlue develops decentralized wastewater treatment installations that combine biological processes with technology to purify water and remove pharmaceutical residues and micro-pollutants. Its compact systems enable water reuse (e.g. for toilet flushing or plant irrigation) and support circular water management for clients in the Netherlands and abroad.

1 investor

PureSpace develops ethylene removal technology for fresh produce storage, helping retailers and food distributors reduce spoilage and extend shelf life from distribution facilities to customer purchase points.

1 investor

PurposeEnergy develops wastewater treatment and biogas solutions that convert organic waste from food and beverage producers into renewable fuels and electricity. The company helps industrial clients reduce compliance costs and greenhouse gas emissions from waste streams.

1 investor

PYRATEX® is an R&D company and supplier of natural, biobased, and recycled fabrics and knitwear, using fibers such as abaca, linen, cotton, citrus agri-waste, seaweed, and recycled materials. It targets clothing brands with a certified, traceable supply chain and localized production aimed at reducing environmental impact.

1 investor

Qorium develops cell-cultured leather grown from a single animal cell sample, producing uniform collagen sheets that integrate into existing tannery and leather-goods production processes. It partners with tanneries and global brands to supply real leather for luxury products such as bags, automotive interiors, and footwear without slaughtering animals.

1 investor

Quantum Waste collects and processes waste locally, offering an integrated one-stop service for sorting and recycling of most materials with lower fuel consumption and carbon emissions. It serves businesses in London seeking waste management and recycling services.

1 investor

Radial Bio makes compostable packaging along with sustainable substitutes for timber and for animal and plastic leather, aimed at protecting and packaging products.

1 investor

Radical develops chemical recycling processes to convert complex, unrecycled plastic waste into carbon-based resources for the chemical industry. It aims to build a circular economy for plastics and provide a fossil-free carbon source for chemical producers.

1 investor

Radworks builds a peer-to-peer, open-source foundation for code collaboration, including Radicle (a Git-based decentralized code collaboration stack), Drips (a tool for funding open-source projects), and a local-first launcher app for decentralized frontends.

1 investor

Raeri operates a platform that reconnects usable products destined for landfills with new users through automated matching, distribution, and impact tracking. The service addresses waste reduction for businesses seeking ESG outcomes, individuals decluttering, and community organizations.

1 investor

Range Revolution makes leather handbags and accessories, including suede bags, clutches, and satchels, using leather sourced from regenerative American ranches. The company sells directly to consumers.

1 investor

Rareform collects retired vinyl billboards across the U.S. and upcycles them into one-of-a-kind bags and accessories, with each product having a unique design. It operates in the consumer goods space with a focus on sustainable, upcycled materials.

1 investor

RASIN Co., Ltd. (GINZA RASIN) sells and buys new, used, and antique luxury watches through physical stores in Japan and online marketplaces, and also runs a corporate sales business. The company operates its own repair and maintenance division and is based in Ginza, Tokyo.

1 investor

Ravel develops a proprietary Purification Recycling process that separates and recovers materials from blended-fiber textiles to reduce landfill waste. It targets the fashion and textile industry with a focus on enabling circularity for blended fabrics.

1 investor

Re.Group designs, builds, owns and operates recycling systems and facilities, providing kerbside recycling, material recovery, organics (FOGO) processing and container deposit schemes for local governments and communities. Founded in 2013, it operates a network of recycling facilities serving more than 4 million people across Australia and New Zealand, and includes an internal engineering team for resource recovery infrastructure.

1 investor

Re-Nuble makes circular growing inputs for indoor agriculture, including ReNu Terra hydroponic grow mats and Away We Grow organic liquid nutrients derived from vegetative waste. Its products serve vertical farms, greenhouses, and home growers seeking higher yields, reduced pathogen risk, and less waste.

1 investor

Realease Capital provides financial leasing (location financière) solutions that let businesses and distributors finance professional equipment — including IT hardware, industrial machinery, medical devices, mobile fleets and energy equipment — without upfront cash outlay. Operating in France since 1986, it serves companies across sectors seeking to preserve cash flow and manage equipment obsolescence.

1 investor

Reath provides a software platform for managing packaging data, including carbon calculations, material usage tracking, and cost analysis. It helps companies simplify Extended Producer Responsibility (EPR) and recycling assessments while tracking financial and environmental packaging impact.

1 investor

Rebike sells premium refurbished and used e-bikes and bicycles, sourced mainly from leasing returns and reconditioned through a TÜV Rheinland-certified multi-step process. The company operates an online shop across several European countries, offering brands such as Cube, KTM, Gazelle and Canyon at up to 60% below new prices.

1 investor

Reboxed sells refurbished smartphones and tablets (such as Apple iPhones and Samsung Galaxy tablets) that pass a 70-point in-house diagnostic check and come with a 12-month guarantee. The company operates a circular consumer-electronics model aimed at reducing e-waste, offering carbon-offset devices to buyers and a resale service for sellers.

1 investor

rebuy is an online marketplace for buying and selling used electronics and media, including smartphones, tablets, wearables, books, DVDs, and games. Operating in the circular economy since 2004, it offers refurbished products at lower prices as a more sustainable alternative to buying new.

1 investor

rebuy is a German re-commerce platform where consumers buy and sell used electronics (smartphones, tablets, wearables) and media (books, DVDs, games) at reduced prices. Operating since 2004, it focuses on the circular economy by giving second-hand products a second life.

1 investor

Recell converts cellulosic waste — such as fibers from water treatment plant screens and other cellulosic feedstock — into sustainable industrial fibers and high-purity industrial sugars used for building materials, green chemicals, biopolymers, and advanced biofuels. It serves industrial companies in Europe seeking to lower CO₂ emissions and build circular value chains.

1 investor

ReCheck operates a platform for managing and reusing building materials and real estate assets with financial incentives, focused on circular innovation in the real estate sector.

1 investor