Circular Economy Startups

Biosimo produces bio-based platform chemicals — with bio-acetic acid as its flagship, plus acetaldehyde, ethyl acetate, and bio-VAM — by converting bioethanol using a proprietary heterogeneous catalyst in a single continuous fixed-bed reactor step. The company, an ETH Zurich spin-off, sells to industries including agriculture, automotive, construction, home care, and cosmetics, aiming to compete at fossil-fuel economics.

3 investors

Biotic Labs develops biological processes to manufacture bio-based, biodegradable polymers that replace fossil-fuel plastics for industrial and consumer applications. The company aims to transition industries toward a sustainable, circular economy for plastic production.

3 investors

BIOWEG develops and sells bio-based, sustainable high-performance ingredients created by combining biotechnology, material science, and molecular simulation. Its animal- and GMO-free ingredients target companies and consumer brands in the beauty, nutraceuticals, and food/beverage sectors.

3 investors

Bioworks develops PlaX, a plant-based fiber intended as an alternative to petroleum-derived synthetic fibers, aimed at making the apparel industry more sustainable. The company targets clothing and textile manufacturers seeking lower-impact materials.

3 investors

BNTO operates a clothing and accessories rental subscription service that allows customers to select and rotate designer pieces monthly without committing to ownership. The platform serves fashion consumers seeking variety and sustainability while avoiding fast fashion waste and closet clutter.

3 investors

Bower Collective sells natural household and personal care products delivered in reusable, traceable BowerPack packaging to reduce single-use plastic waste at home. A certified B Corp, it sources natural ingredients free from chemicals like parabens and synthetic fragrances, with most products made in the UK.

3 investors

Bright Feeds converts unwanted or surplus food from companies into nutritious animal feed, aimed at reducing food waste and supporting sustainability goals. It positions its food-manufacturing approach as a way to address climate change and food insecurity while helping clients improve profit margins.

3 investors

A company addressing a market inefficiency in fashion by turning what the industry overlooks into a competitive advantage. The company operates in the fashion marketplace or resale sector.

3 investors

CarbonQuest develops distributed carbon capture technology to decarbonize buildings and industrial facilities. The company serves commercial real estate owners and operators seeking to reduce their carbon emissions.

3 investors

Carbonwave collects and processes Sargassum seaweed from coastal waters in Mexico to create biomaterial products including agricultural supplements and cosmetic ingredients. The company serves farmers and personal care manufacturers seeking sustainable alternatives to synthetic inputs.

3 investors

Cartlow is an online marketplace selling discounted products such as electronics and consumer goods, including refurbished and open-box items, to retail shoppers. It also offers B2B wholesale/bulk purchasing for businesses, and operates in the UAE.

3 investors

Cemvita uses proprietary microbial strains it calls xtremophiles to convert carbon waste into usable resources, applying synthetic biology to heavy industry and biorefining. Its work spans regenerative bio-inputs for agriculture and circular-economy processes for industrial applications.

3 investors

Cetogenix is a New Zealand-based climate technology company developing engineering and process solutions in the cleantech and circular economy space.

3 investors

ChainCraft converts organic waste streams into medium-chain fatty acids, circular chemical alternatives to traditional fossil fuel-based chemicals. The company serves the chemical industry with sustainable inputs for manufacturing.

3 investors

Cheaf runs a mobile app that connects supermarkets, restaurants, bakeries and other food businesses with surplus food to consumers who buy it at a discount through a pickup-only model, reducing food waste. It operates across four countries and serves both merchants looking to monetize excess inventory and shoppers seeking cheaper food.

3 investors

CheckSammy provides waste diversion and recycling services with a technology platform that tracks materials from pickup to final destination, connecting businesses to a network of recycling and sustainability facilities. It serves enterprise clients across North America with chain-of-custody tracking, automated reporting, and ESG metrics.

3 investors

Clean Food Group is a UK-based food tech company that uses fermentation to produce sustainable, function-specific oils and fats as alternatives to traditional ingredients for food, cosmetics, and pet food manufacturers. The company's proprietary CLEAN OilCell™ platform transforms food waste into high-performance ingredients at competitive prices and with reduced environmental impact.

3 investors

CleanHub partners with brands to collect and manage plastic waste before it enters oceans, focusing on non-recyclable plastics in coastal communities. The company has collected nearly 30 million kilograms of plastic waste and works with over 500 brands on plastic reduction and recovery.

3 investors

ClimateTrade operates a carbon marketplace and sustainability platform that enables individuals and companies to calculate their carbon footprint, purchase verified carbon credits, and fund certified sustainability projects globally. The platform serves businesses and consumers seeking to achieve carbon neutrality through traceable funding to reforestation, renewable energy, biodiversity, and community projects.

3 investors

Closed Loop Partners is an investment and operations firm focused on building the circular economy through investments in companies and innovations that advance waste reduction and resource efficiency.

3 investors

Colorifix uses engineered microorganisms to produce, deposit, and fix dyes on textiles through a biological fermentation process, aiming to reduce the environmental impact of textile dyeing. It develops and manufactures bioreactors and fermentation media for textile industry customers.

3 investors

Crush Dynamics develops natural, bio-transformed polyphenol-based ingredients that help food and beverage manufacturers reduce sugar and sodium, extend shelf life, and enhance flavor while maintaining clean labels. Based in Canada, it supports food producers' R&D and product development teams.

3 investors

Curie Co develops sustainable ingredients based on natural processes for use in consumer goods including personal care, textiles, and food products. The company focuses on creating planet-friendly formulations that maintain performance without environmental compromise.

3 investors

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.

3 investors