Circular Economy Startups

Glavel produces foamed glass aggregate, a lightweight building material made from recycled glass that provides structural compressive strength, insulation, and drainage in a single product, replacing foam insulation, crushed stone, and lightweight fill. The material is manufactured in an electrified kiln using renewable energy and is free from VOCs, microplastics, and harmful additives, serving the construction industry.

1 investor

Gloset is an online marketplace for buying and selling secondhand fashion, including branded clothing, dresses, shoes, and bags from labels such as Prada, Gucci, and Zara. It offers item authentication and resale services, letting users turn their closet into earnings, and appears focused on the Mexican market.

1 investor

Glou is a beauty resale marketplace that enables consumers to buy and sell secondhand beauty products. The platform aims to shift consumer behavior from hyper-consumption toward conscious consumption by facilitating the rehoming of used beauty products.

1 investor

Go Forest, founded in 2020, runs tree-planting and reforestation projects with structural partners, and through Go Ocean works to restore coastlines and coral reefs and protect ocean ecosystems and wildlife. The company focuses on environmental restoration and climate impact.

1 investor

Loopi (gothrift.co.uk) is an online marketplace for second-hand clothing where users buy pre-loved fashion and sell items they no longer want. Each item is inspected, authenticated, cleaned and photographed by the company's team before resale, with a focus on the UK market.

1 investor

GoMore operates a car-sharing and peer-to-peer car rental platform, offering access to more than 20,000 rental cars and a GoMore+ membership for discounts. The service connects people who want to share or rent cars, with a focus on reducing the number of cars needed in cities.

1 investor

Goodfair is an online store offering affordable, sustainable and eco-friendly everyday products, including bundle deals, aimed at consumers looking for practical alternatives to disposable items. Most items are priced under $30.

1 investor

Goodpack provides reusable, pallet-sized shipping and storage containers on a pay-per-use model, operating a fleet of over 4 million containers across a global network of 5,000+ delivery and collection points with embedded RFID and data analytics. It serves supply chains in the rubber, chemicals, automotive, and food markets, positioning its containers as an enabler of circular, sustainable logistics systems.</parameter> <parameter name="founders">[]

1 investor

Gr3n develops a microwave-based depolymerization technology to chemically recycle PET plastic, targeting the packaging and textile industries. The company is building Spain's first microwave PET depolymerization plant.

1 investor

Grant Blvd was a Philadelphia-based fashion company founded in 2017 that designed and produced garments using sustainably sourced materials while employing individuals facing barriers to work and paying living wages. The page reads as a farewell message indicating the company's operations have concluded.

1 investor

Granulous transforms brewery waste into a high-performance, biodegradable biocomposite material that can replace traditional plastics across agriculture, consumer goods, and industrial applications.

1 investor

GSF Upcycling develops and manufactures graphene-based nanomaterials used to enhance pyrolysis processes for upcycling mixed plastic waste into virgin-quality chemical feedstock. It serves brands and the pharmaceutical, chemical, and petrochemical industries.

1 investor

The Green Dairy manufactures plant-based dairy products at scale for brands, retailers, and foodservice partners, offering proven formulations (particularly oat-based), quality assurance, and scalable production with sustainability focus. The company provides private label manufacturing solutions for plant-based beverages, barista drinks, and soft serve products.

1 investor

Green Grahi uses insects to produce natural fertilizer for agricultural farmers and protein supplements for aquaculture feed. It positions insect farming as a sustainable input for animal and plant nutrition with lower water, feed, and land requirements.

1 investor

Green Llama makes plant- and mineral-based, non-toxic cleaning products such as laundry powder, dishwasher tabs and refillable tablet-based cleaning solutions sold direct to consumers. The company emphasizes concentrated, refillable formulas and compostable packaging to reduce plastic waste.

1 investor

Green Meadow Sustainable Solutions is a waste management company offering hauling, landfill operation, recycling, and transfer station management services. It serves local cities and companies, emphasizing customer care, safety, and environmental responsibility.

1 investor

Green Spot develops fermented ingredients using natural substrates and microbial pathways for food, feed, health, and beauty applications. The company uses fermentation to expand access to nature-diverse ingredients at scale while promoting regenerative agriculture and reducing reliance on scarce resources.

1 investor

Greenback works in the recycling sector, with offerings referenced as py-oil (π-Oil), Enval, and eco2Veritas. The page does not provide further concrete detail about the products or the customers served.

1 investor

GreenChips operates an AI-powered marketplace connecting OEM and EMS companies with buyers to trade surplus electronic components and inventory globally. The platform aims to reduce electronic waste while enabling cost savings through efficient redistribution of excess stock.

1 investor

The Green Factory sells sustainable consumer products through an online shop with over 60 items, and also offers services including green-living advice, custom eco-friendly promotional merchandise, and interior fit-outs and furniture made from recycled and sustainable materials. It positions itself as a community-driven initiative focused on education, outreach, and engagement around conscious living.

1 investor

Greenhope develops and produces patented, certified biodegradable and bio-based materials—Oxium (biodegradable additive), Ecoplas and Naturloop (cassava-based bioplastics)—used to make garbage bags, packaging, food trays, and utensils. It partners with brands, governments, and institutions globally to replace hard-to-recycle conventional plastics, and is headquartered in Jakarta, Indonesia.

1 investor

GreenIron develops a hydrogen-based process for carbon-neutral metal production that recovers metals from industrial by-products and waste. The company operates in the clean industrial technology and metallurgy sector.

1 investor

Greenleaf Power invests in and operates biomass cogeneration plants that recycle waste into renewable energy across North America. The company plans to add biochar, green hydrogen, and EV charging capabilities at its sites.

1 investor

GreenLeaze is a platform that lets e-commerce merchants offer their products via subscription, rental, or leasing, handling instant credit checks, insurance, automated billing, and end-of-contract buyback and refurbishment. It serves both B2C and B2B retailers and integrates into online stores through an API or plug-and-play modules for major e-commerce platforms.

1 investor