Circular Economy Startups

6K Additive converts domestic scrap material into high-performance metal powders and alloys for aerospace, defense, space, medical, energy, and automotive industries. The company operates as a material supplier using upcycling processes to create critical materials from recycled sources.

1 investor

7 Leagues manufactures fish leather using small-batch vegetable tanning methods, scaling artisanal techniques into commercial production. The company creates leather products sourced from local, sustainable resources for environmental and social impact.

1 investor

7 Steel Service Finland manufactures steel reinforcement components and pre-fabricated solutions for concrete construction projects, including BIM modeling services and the QR project management software for coordinating reinforcement data across project teams. The company operates in Finland and serves structural designers, construction sites, and construction material suppliers.

1 investor

A steel company that manages by-products from its manufacturing process, identifying new industrial uses and reusing materials back into steelmaking or other industrial applications to reduce natural resource consumption.

1 investor

99dresses runs an online marketplace where women in the U.S. buy, sell, and trade fashion items with other users. Originally launched in Australia, the company now operates from New York and offers an iOS app for peer-to-peer clothing exchange.

1 investor

Abolis is a microbial biotechnology company that designs custom microorganisms to produce ingredients sustainably using metabolic engineering, fermentation, and machine learning. The company serves cosmetics, healthcare, nutrition, and specialty chemicals industries with tailored biosolutions for manufacturing.

1 investor

ADRA PERÚ operates social and development programs in Peru, including a Food Bank program that promotes sustainable practices among grassroots organizations to reduce environmental contamination.

1 investor

ADRITEM is a regional development association operating in the Terras de Santa Maria area of Portugal. It supports the promotion of local resources, crafts, the green economy, and the development of new business projects across urban and rural communities.

1 investor

Aequor develops EPA-approved green chemical compounds that replace toxic biocides for controlling bacteria, fungi, and marine fouling in industrial and consumer applications. The company offers customized product formulations and consulting services to help clients reduce chemical toxicity while cutting costs and carbon emissions.

1 investor

Aēras water produces premium bottled water with emphasis on sophisticated design and sustainable environmental practices.

1 investor

Äerd Lab is a design studio that uses 3D printing to produce clay bricks, decorative elements, and everyday objects from bio-based earthen material. It sells locally crafted 3D-printed products online and applies the technology to architectural and building applications.

1 investor

AeroFlexx develops a liquid packaging technology, the AeroFlexx Pak, that combines attributes of flexible and rigid packaging with features like 360-degree artwork, easy tear, and a self-sealing valve, while using less plastic. It serves consumer brands across categories including personal care, household products, food, pet care, and industrial.

1 investor

Aeropowder engineers high-performance insulation materials from feathers using a patent-pending process. The company's first product is PluumoPlus, a thermal packaging material for life science and pharmaceutical cold chain deliveries that replaces expanded polystyrene.

1 investor

Afineur uses biological processes to manufacture food products sustainably, leveraging natural fermentation and biotech methods as an alternative to conventional manufacturing.

1 investor

After is Australia's textile recycling pick-up service that collects unwearable clothing and textile waste from households and businesses. The company processes materials sustainably and returns value to conscious Australian businesses participating in its collection network.

1 investor

Afterlife Mushrooms cultivates mushrooms by upcycling food scraps collected from restaurants and food establishments, offering over 20 species for culinary use. The company aims to divert food waste from landfills and reduce greenhouse gas emissions through local, sustainable mushroom production.

1 investor

Agapyo develops Jam™, a wood waste-based biodegradable thermoplastic that serves as a drop-in replacement for petroleum-based rigid plastic in agricultural products (such as nursery pots and tree protectors) and consumer goods (such as computer peripherals). Its patented technology converts forestry wood-waste into a moldable material compatible with existing molding machinery and biodegradable at end-of-life.

1 investor

A Good Company sells branded merchandise and corporate gifts with transparency on environmental impact and charitable donations tied to each purchase.

1 investor

Agreka Build develops sustainable building materials from agricultural waste, focusing on circular economy solutions for the construction industry. The company manufactures WHEATEX®, a straw-based insulation product, with a pilot facility in the UK.

1 investor

Ail Arian develops reusable silver conductive inks and a design-for-recycling approach for printed electronics, helping manufacturers reduce CO2e, cut manufacturing waste, and recover high-value materials. It is also applying the technology to smart, interactive packaging with features such as illumination, sensors, and authentication for brands.

1 investor

ÄIO develops sustainable alternatives to animal fats and palm oil using proprietary microbial lipid technology for the oleochemical industry. The company converts agricultural and food industry side streams through fermentation-based biotechnology to produce ingredients for cosmetics and specialty chemicals.

1 investor

AION develops material formulation, product and systems design, and operational services to help firms reduce the environmental impact of the plastics they use. The company operates in the circular economy and materials space, focused on more sustainable plastic use.

1 investor

Airbuild develops algae-based wastewater treatment systems that remove nitrogen and phosphorus from contaminated water while producing biochar fertilizer and carbon credits. The technology targets municipalities and industrial facilities seeking to meet EPA water quality standards while creating revenue from recovered nutrients sold to farmers.

1 investor

Bradford provides ground support and logistics services to airports, with 24+ years of experience in the aviation industry serving customers across US airport operations.

1 investor