Circular Economy Startups

BHT Startup Hub is a "lean incubator" affiliated with a Berlin university of applied sciences that supports first-time founders and early-stage startups with coaching, free coworking spaces, infrastructure, mentorship, and equity-free scholarship funding. It focuses on technology-driven ventures and draws on the university's technical expertise.

1 investor

BIBAK offers a technology-based reusable packaging return system using connected kiosks, deposit/caution incentive models, and container fleet tracking to eliminate single-use packaging. It serves food service and collective catering clients seeking to manage reusable tableware returns and reach high return rates.

1 investor

Bigbelly manufactures smart waste and recycling bins for municipalities, featuring compaction technology and IoT connectivity to reduce collection frequency, emissions, and operational costs in public spaces.

1 investor

Big Rock Mountain Inc. supplies industrial equipment, materials, and manufacturing solutions across mining, agriculture, construction, and related sectors. The company operates a platform connecting customers directly with Canadian and North American manufacturers and suppliers.

1 investor

Bilmo designs and builds bicycle trailers for professionals such as municipal cleaning teams, caterers, and adapted-work companies to move goods and equipment efficiently in urban areas. Founded in 2019, the company operates in Belgium.

1 investor

BinBreeze manufactures an all-natural compost powder that neutralizes odours, controls moisture, and helps prevent fruit flies in home compost bins. The product is made in Canada and was featured on Dragons' Den.

1 investor

Binology develops smart waste-management technology, including IoT-enabled smart bins with radar fill-level sensors, driver and office management software, and a SmartCity management platform. Its products have been deployed in 21 countries, and the company is now offering its assets, source code, patents, and brand for sale.

1 investor

Bioplastix engineers E. coli and Halomonas bacteria using AI, enzyme optimization, and precision fermentation to produce high-performance PLA and PHB biopolymers from low-cost sugars and agroindustrial waste. It acts as a technology partner for petrochemical companies, agribusinesses, and consumer goods manufacturers, providing custom microbial strains, biopolymer formulations, and bioprocesses for bioplastic production.

1 investor

Bio2Watt (BEH) develops biogas waste-to-energy plants that generate base-load electricity while reducing landfill waste, and also produces a registered fertiliser and soil enhancer. The company operates in South Africa with plans to expand across Africa.

1 investor

Bioelektra develops Advanced Recycling Technology (ART) for processing municipal solid waste, sterilizing it to remove odours without incineration and recovering reusable materials such as glass, plastics, metals, minerals, fuels (RDF/SRF), and biomass, leaving only about 4% for landfill. The company positions its technology within circular economy and sustainable waste management.

1 investor

BiofuelCircle operates a digital platform for the bioenergy supply chain, connecting farmers, rural enterprises, and biomass processors with industrial buyers seeking to replace fossil fuels with biofuels. Based in India, it provides a B2B marketplace and supply chain services for biomass, biofuels, and bio-products, supporting a farm-to-fuel ecosystem for agro-waste.

1 investor

Biohm is a research and development company developing scalable biotechnologies aimed at reshaping industrial and economic systems. Its work centers on aligning natural and cultural systems around the concept of "biosynergy," the interconnection of all living things.

1 investor

BioMetallica recovers critical metals—including precious metals, platinum group metals, rare earth elements, silver, and silicon—from complex waste streams such as e-waste, spent autocatalysts, mine tailings, and solar panels. It uses proprietary synthetic biology and green chemistry hydrometallurgy, including on-site biocyanide generation, to provide circular metal recovery.

1 investor

Bio Natural Solutions develops biotech products from agricultural waste for crop protection and food preservation, serving agribusiness and food industry customers.

1 investor

BioPak supplies certified compostable food and drink packaging — including cups, containers, cutlery and accessories — for quick-service food venues, along with custom-branded packaging options. The company is B Corp certified and ships across Australia.

1 investor

Biopallo is a Finnish company built around a biological/microbiological process technology, with a team including process and technology experts and microbiologists. The page presents company management and board members but does not detail the specific product or end market.

1 investor

BioSurplus buys, sells, sources, redeploys, and auctions used life-science laboratory equipment, helping companies recover capital from idle assets and helping buyers access quality instruments. It serves life-science companies and researchers in the secondary market for lab equipment.

1 investor

Biosynthetic Technologies develops innovative solutions in R&D and operations for sustainability-focused applications. The company serves markets requiring supply chain and operational expertise.

1 investor

Biotero provides 100% organic lawn topdressing and seeding services, using proprietary products and application techniques to repair, establish, and maintain lawns for residential customers. It operates across several locations in Quebec, Canada.

1 investor

Birl provides fully managed inventory recovery and circular resale solutions for fashion and retail brands, converting unsellable, damaged, or excess stock into revenue through AI-powered listing, dynamic pricing, and resale distribution. The platform also enables trade-in programs that drive customer lifetime value and supplies product-level data intelligence for operational and ESG reporting.

1 investor

Bivalvia produces oysters (Crassostrea Gigas) for commercial sale, operating hatcheries and growing facilities across Portugal to supply quality marine products to customers and partners. The company focuses on expanding domestic oyster production and exports through vertically integrated operations spanning the full production cycle.

1 investor

Black Bull Biochar develops a platform to enable carbon removal at scale through biochar production. The company operates in the climate tech and circular economy sector.

1 investor

Blend Energy builds modular industrial thermolysis systems that convert mixed and contaminated plastic waste into circular hydrocarbon oils for use as secondary raw materials in plastics and chemical manufacturing. Its systems process a range of plastic types with minimal sorting and offer an optional CO₂ capture module, serving industrial chemical recycling and materials recovery.

1 investor

The Blinky Company manufactures sun and sleep shades for baby strollers and prams that block UV rays and provide portable nap protection for infants and toddlers during outdoor activities.

1 investor