Circular Economy Startups

Rumah Group is a Singapore-based family office engaged in impact investing and philanthropy across Southeast Asia. It backs solutions in areas such as sustainable building materials, alternative proteins, circular economy and ocean protection, while its foundation supports humanitarian and marine ecosystem work.

1 investor

RWDC uses proprietary technology to produce Solon, a natural PHA (polyhydroxyalkanoate) polymer that is biodegradable in soil, water, and marine conditions as an alternative to petroleum-based plastics. The material is certified compostable and biodegradable and is aimed at applications seeking sustainable plastic replacements.

1 investor

SABRN is an Australian veteran-owned group operating five subsidiaries focused on healthcare, education, circular economies, defense support, and research and development. The company prioritizes making effective healthcare available and affordable for communities across multiple Australian locations.

1 investor

Safripol is a polymer producer and marketer that manufactures High Density Polyethylene (HDPE), Polyethylene Terephthalate (PET), and Polypropylene (PP) for use across industries including food packaging, medical equipment, industrial piping, and consumer goods. It serves the South African and broader Sub-Saharan African market with a focus on circular-economy practices.

1 investor

Salish Soils is an Indigenous-led company that produces compost-based soils, mulch, and aggregates made from locally sourced organic waste materials for gardeners and landscapers. Based on the Sunshine Coast in British Columbia, it focuses on waste diversion and regenerative, circular production.

1 investor

Salubata makes wearable art shoes from repurposed ocean plastic waste, combining sustainable materials with fashion design.

1 investor

Sana Packaging is a full-service supplier of custom cannabis packaging made from plant-based hemp plastic, reclaimed ocean-bound plastic, recycled, and traditional materials, serving cannabis brands and manufacturers. The company handles design, custom printing, and labeling with a focus on sustainability and circular economy principles, and manufactures in the USA.

1 investor

Save repairs devices such as smartphones with broken screens or worn batteries and sells refurbished phones from brands including Apple, Samsung, and Xiaomi. It operates a retail chain in France focused on repairing and reselling smartphones, computers, and other tech products.

1 investor

Save Market buys back companies' used IT hardware — smartphones, computers, and tablets — handling logistics, certified data erasure (including physical destruction) and audit reporting. It resells or recycles the equipment through certified partners, serving business clients in an IT asset disposition and circular economy model.

1 investor

Scanbio develops supply chain management solutions focused on business efficiency and environmental sustainability.

1 investor

SchrottBienen provides logistics and disposal services for SHK (heating/plumbing) trades in Germany, handling the removal and dismantling of old heating systems, transport and placement of new equipment, and disposal of scrap metal, rubble and packaging waste, along with digital disposal certificates. The service, offered in fixed packages across core German regions, aims to relieve tradespeople during heating system replacements and the heat transition.</parameter> <parameter name="founders">[]

1 investor

Schüttflix operates a digital marketplace and logistics platform that connects construction companies, building material suppliers, waste management companies, and carriers for the supply, transport, and disposal of bulk construction materials and mineral waste. It also runs its own recycling centers and uses material flow data to support recycling and a circular economy in the construction sector.

1 investor

SCO2 develops Nextract, a patented supercritical CO₂ extraction technology that recovers high-value ingredients such as fibers, oils, bioactives, and proteins from plant biomass byproducts. It targets food and agricultural processing facilities looking to convert waste streams into marketable ingredients without altering existing operations.

1 investor

Scrap-It is a digital platform that connects waste management and debris removal service providers with customers, using proprietary technology for real-time tracking and job scheduling. The company operates as a marketplace leveraging a network of small trade partners to handle debris removal and recycling services for green-conscious clients.

1 investor

Sharewares provides a zero-waste reusable packaging service for venues. The company offers products and services aimed at reducing single-use waste.

1 investor

SecondShop sells open-box, refurbished, and scratch-and-dent appliances, TVs, and home goods from major brands to Canadian consumers. Each item is inspected and certified, sold with a one-year warranty on major appliances and Canada-wide shipping.

1 investor

SelecTech manufactures interlocking, adhesive-free commercial flooring made with recycled plastics, including ESD/static-control flooring for mission-critical environments such as manufacturing sites, labs, and cleanrooms. Its product lines include StaticStop, FreeStyle, and Place N' Go flooring.

1 investor

Select Water Solutions provides water management and fluid chemistry services for oilfield operations, including produced water treatment, recycling and reuse, disposal, and water infrastructure. It also develops automation technology, such as its AquaView platform, to balance produced water and improve the economics of oilfield operations.

1 investor

Sellit9 lets people sell items by dropping them off at partner store locations, where the items are assessed on the spot and the customer receives payment immediately.

1 investor

SemperCycle uses a patented gasification reactor to convert mixed and contaminated hard-to-recycle plastic waste into syngas and methanol that serve as drop-in, low-carbon feedstock for the chemical industry. Its process targets chemical producers and plastics manufacturers seeking alternatives to fossil-based feedstocks, supporting a circular plastics economy.

1 investor

Sensmet develops online process analyzers for continuous monitoring and control of liquid samples in industrial applications. The company's patented Micro-Discharge Optical Emission Spectroscopy (µDOES®) technology enables multi-metal analysis of aqueous samples, with critical applications in battery metal monitoring during production and recycling.

1 investor

Sensorita provides real-time sensor and fill-level monitoring for waste management companies, tracking container location, fill levels, and inventory across depots. Its platform automates customer ordering, route optimization, and proactive alerts for waste producers and haulers.

1 investor

Sentara Group is a Malaysian biotech company that uses black soldier flies and microorganisms to convert agro-industrial by-products into insect-based feed ingredients, organic fertilizers, and soil conditioners. Its products serve Malaysia's livestock and crop production sectors, aiming to support domestic food security and reduce reliance on chemical fertilizers.

1 investor

Seprify produces functional cellulose-based ingredients from renewable plant resources for industrial applications, offering biodegradable cellulose particles that serve as lower-carbon alternatives to conventional materials such as titanium dioxide. The company targets formulators and industrial users seeking natural, high-performance material inputs.

1 investor