Circular Economy Startups

Resilco operates a circular process that recovers and valorizes hazardous industrial waste — such as fly ash from waste-to-energy plants and slag from steel manufacturing — into secondary raw materials for sectors like construction and road building. Its technology also captures and permanently stores CO2 from industrial fumes inside those recovered materials, reducing landfill disposal and emissions.

1 investor

ReSiTec develops process engineering solutions and produces metal and mineral powders for industrial applications. The company serves various industries requiring custom technology, products, and equipment, with particular expertise in powder and liquid solution handling.

1 investor

Reskinned operates a circular fashion platform that collects unwanted clothing and either resells it through their platform, repurposes it through partnerships with designers, or recycles it into new materials or products. The company serves consumers and brands seeking sustainable alternatives to new clothing production and landfill disposal.

1 investor

ResourceCo recovers and re-manufactures primary resources, extracting value from materials that would otherwise go to landfill. It works with governments, communities, and multinational companies to advance the circular economy and preserve natural resources.

1 investor

A platform for buying and selling pre-owned streetwear and archive fashion items, serving collectors interested in sustainable resale.

1 investor

ResQ Club runs a mobile marketplace app that lets consumers buy surplus food, flowers, and other goods from local shops and restaurants at discounted prices to reduce waste. For businesses, it provides a channel to sell unsold daily surplus and earn revenue, charging a 25% commission on sales.

1 investor

Rester is a Finnish company that mechanically recycles end-of-life business textiles — such as workwear, uniforms, flat linen, and production side streams — into recycled fibers and raw materials. Its nonwoven, short, and spinnable fibers are sold to industrial and textile manufacturers as replacements for virgin materials.

1 investor

Restord converts local biomass streams, such as tree surgery waste, into biochar through pyrolysis, locking carbon away for over a century while improving soils. It operates in the durable carbon removal space, offering trials and partnerships.

1 investor

Resynergi converts plastic waste into recycled oil (PyOil) intended to achieve cost parity with conventional crude oil for use in plastics production. The company targets plastic recyclers, manufacturers, and communities seeking economically viable alternatives to virgin fossil fuels.

1 investor

Retrievr offers at-home pickup of unwanted clothing, shoes, and electronics for recycling, letting residents schedule appointments and leave items at their door. The service operates in the Greater Philadelphia Area and accepts items even if worn out or non-working.

1 investor

Return Carbon is a venture builder and investor focused on accelerating the transition to net-zero energy systems. The company works with startups and projects in the energy transition and climate sectors.

1 investor

RTV is a circular materials company that accepts end-of-life fabrics and other materials for recycling and reuses them as regenerated nylon for fashion and heavy industry applications. The company operates an integrated system designed so all materials flowing through it are 100% recyclable.

1 investor

ItGreen operates a reusable container circulation platform that enables businesses and consumers to use eco-friendly multi-use containers for food delivery and service, with collection and washing infrastructure. The company serves restaurants, delivery apps, stadiums, and institutions across South Korea to reduce single-use waste.

1 investor

ItGreen operates a reusable container circulation platform that supplies eco-friendly multi-use containers to businesses and consumers, then collects and cleans them for reuse. The company serves food delivery platforms, restaurants, event venues, and other organizations across South Korea seeking to reduce single-use packaging waste.

1 investor

Returnity provides reusable packaging systems that replace single-use corrugate in supply chains for retailers, third-party logistics providers, and manufacturers. The company helps businesses reduce packaging costs and waste through closed-loop packaging designed to integrate with existing logistics networks.

1 investor

Reunimer operates an integrated seafood value chain spanning fishing, processing, distribution, and logistics. The company focuses on sustainable practices balancing environmental respect with business performance across its operations.

1 investor

Reuse sells refurbished and open-box electronics such as iPhones, Samsung Galaxy, Oppo and Motorola smartphones, tablets, and laptops, all with a warranty and a return period. It also provides trade-in infrastructure and quality standards for retailers, and operates a showroom in Mexico City.

1 investor

Revalyu (revalyu Resources) recycles PET plastic to produce sustainable recycled polyester used by textile mills and consumer product makers. The company operates in the circular economy and plastics recycling sector, selling recycled polyester materials to textile and retail customers.

1 investor

Revent sells premium refurbished electronic devices and offers flexible device rental plans aimed at small businesses looking to reduce upfront costs. It also provides re-commerce services for returns management, product grading, and liquidation to help recover value from returned goods.

1 investor

ReVentas recovers waste plastic films through a dissolution process that purifies polypropylene to virgin-like quality for reuse in packaging applications. The company enables circular recycling of household and industrial plastic film waste that would otherwise be incinerated or landfilled.

1 investor

Reverse Energy Solutions provides dismantling and material recovery services for photovoltaic modules and data center equipment at end-of-life. The company recovers valuable materials for reintegration into supply chains while reducing logistics costs and environmental impact.

1 investor

Trioworld produces polyethylene and polypropylene film solutions for consumer and industrial packaging, transport packaging, agriculture, hygiene, and medical technology. The company focuses on circular plastics through recycled content, material reduction, and biobased polymers.

1 investor

Revive (getrevivehq.com) offers a curated resale edit of sought-after fashion pieces from brands such as Anine Bing, Farm Rio, Ruti, Bloomingdale's, and Lululemon. It positions itself as a shopping destination for pre-owned or "revived" apparel from established fashion labels.

1 investor

Revivle is a peer-to-peer marketplace and personal style community for secondhand clothing that builds users a digital closet from their Gmail receipts, letting them track outfits, shop their own and friends' closets, and resell items with a one-click reservation flow. It targets individual consumers who want to get more use out of their existing wardrobes and recirculate quality used clothing.

1 investor