Circular Economy Startups

JOYCLE operates small-scale upcycling plants that convert waste into resources while providing a data platform service. The company serves organizations seeking to reduce waste management and transportation costs while monetizing environmental impact through operational efficiency and visibility.

1 investor

Vingo is building a peer-to-peer marketplace for Indian consumers to buy, sell, and upgrade products, with a focus on trust, payments, and convenience. The platform targets India's mass consumer market and emphasizes circular commerce and affordability.

1 investor

JUUNOO makes modular office pods and demountable glass and solid wall systems that can be moved and reconfigured to adapt to changing workspace layouts. Built with sustainably sourced materials and circular economy principles, its products serve commercial offices ranging from tech startups to Fortune 500 companies.

1 investor

Kaffe Bueno converts coffee by-products into bioactive ingredients for use in personal care, nutrition, and agricultural products. The company operates a biorefinery in Copenhagen to upcycle coffee waste into multifunctional ingredients for consumer and industrial applications.

1 investor

Kair sells laundry detergent and related care products featuring luxury fragrances, with formulas marketed as vegan, cruelty-free, and packaged in recyclable, reusable glass bottles. It is a direct-to-consumer brand aimed at people who want to preserve and care for their clothes.

1 investor

Kairos converts organic waste (sewage, manure, food residues) into recoverable CO2, clean water, and minerals through a self-powered thermochemical process, selling the outputs for circular use and carbon removal credits.

1 investor

Kawa uses biotechnology to develop low-impact alternatives to environmentally destructive agricultural products, starting with a cocoa powder substitute made from upcycled industrial coffee grounds. The company processes used coffee waste through a proprietary extraction and refining method to produce a milled powder for use in baking.

1 investor

KBV Group designs and manufactures kitchen furniture and home furnishings with emphasis on sustainability and ESG principles. The company combines design, innovation, and responsible sourcing of materials to serve residential customers.

1 investor

Keenat provides waste collection, recycling, and valorization services focused on cigarette butts, masks, disposable PPE, and chewing gum, along with sorting furniture (ashtrays, collection bins). It serves businesses, local authorities, public services, and healthcare facilities in France, working with social and solidarity economy structures for waste collection.

1 investor

KEEPR is a curated online marketplace for design furniture, selling display models, surplus stock, and second-grade items from known brands with the same warranty as new goods. It offers chairs, sofas, tables, lighting, storage, and decor, positioning itself around reuse of furniture.

1 investor

KEON develops, builds, operates, and maintains anaerobic digestion (methanization) plants that convert household and organic waste into biogas (green energy) and digestate fertilizer, including a turnkey MONO-MÉTHA offering. It also sources and secures organic waste supply for local operators, serving territorial and agricultural stakeholders in France and internationally.

1 investor

Ketjen provides advanced catalyst solutions and technical support for the oil refining industry, including fluidized catalytic cracking, hydrotreating, and hydrocracking catalysts. It also offers catalysts that help refiners process bio-based and waste-derived feedstocks to produce renewable fuels and recycled monomers.

1 investor

Keyes Packaging Group produces molded fiber trays and specialty-tissue protective wrap used to store and ship food and beverage products such as apples, pears, avocados, eggs, citrus fruit, and wine bottles. It serves the food and beverage industry and operates the largest molded fiber plant on the West Coast, based in Washington state.

1 investor

Kikleo provides AI-powered tools to measure and reduce food waste in restaurants and food service operations, including a smart camera that detects and quantifies discarded food and a kitchen weighing station. Its web platform gives real-time dashboards on waste volumes, associated costs, and environmental impact, aimed at helping catering operators meet France's EGAlim law targets.

1 investor

Omega Azul (King Kampachi) farms Seriola rivoliana (Kanpachi/Kampachi) using low-density open-ocean aquaculture in the Sea of Cortez off La Paz, Baja California Sur, Mexico, and supplies the fish to chefs. The company emphasizes sustainable aquaculture practices and fish welfare.

1 investor

Kinotech is a research and development company that recovers zinc from electric-arc-furnace steelmaking dust to produce high-purity electrolytic zinc (99.995%, LME grade) using its proprietary direct alkaline leaching and electrolysis process. The company targets recycling of a material largely landfilled as industrial waste, aiming to reduce environmental pollution and greenhouse gas emissions.

1 investor

Kitar is an online store selling refurbished, second-hand original iPhones with permanent IMEI registration, a one-year warranty, and a 7-day no-reason return policy. It serves consumers in Indonesia looking to buy used smartphones.

1 investor

Kiwi Leather Innovations develops bio-based materials made from kiwifruit horticultural by-products, supplied as precision-cut sheets for use by designers, luxury brands, and automotive interior manufacturers. The company uses green chemistry and non-toxic finishing to produce leather alternatives for the fashion and automotive industries.

1 investor

Knihobot is an online marketplace where people sell and buy used books, handling the resale of pre-read books and notifying users when specific titles, authors, or editions become available. It operates in the Czech market.

1 investor

Koa produces a natural ingredient extracted from cocoa fruit pulp, harvested and processed in Ghana, that is used by food professionals as a versatile ingredient. The company works with Ghanaian cocoa farmers to utilize previously discarded cocoa pulp, aiming to increase farmer income and reduce food waste.

1 investor

Koala Eco makes natural cleaning and personal care products for the home and body, formulated with Australian essential oils. Its products are sold in recycled bottles intended to be reused, refilled, and recycled.

1 investor

Koh sells non-toxic, multipurpose home cleaning products, including a universal cleaner, reusable cloths, and a spray mop, designed to replace many single-use cleaning products. It uses a buy-once, refill-forever model aimed at consumers seeking low-waste household cleaning.

1 investor

KOM-EKO S.A. provides waste collection and disposal services along with street cleaning, offering scheduled pickups and tailored solutions for residents and businesses. Operating since 1994, it also runs ecological education programs promoting waste segregation and works on road and pavement surface repairs.

1 investor

Koppie makes a coffee alternative from locally grown peas that are fermented and roasted into "beans" designed to roast, grind, and brew like coffee, allowing blends of up to 50% with regular coffee. It targets coffee producers and beverage makers seeking to reduce costs, hedge against supply and price volatility, and lower environmental footprint.

1 investor