How to recover phosphorus through the agricultural use of digestate produced by co-digestion of sewage sludge and other organic waste.

In order to create a new commercial use for raw wool, the Italian association Post Industriale Ruralità has developed a form of vertical hydroponic cultivation using wool instead of soil.

Enrich manufactures organic compost in an open windrow system using source segregated green waste such as garden clippings and landscaping materials.

restado.de is a marketplace matching construction materials coming from demolition or oversupply with the demand in new construction projects.

RacionaLUSO offers a compact system that meets the recently-introduced Portuguese quality legislation for water reuse. With the availability of just 2m², the system can treat 15m³ of water per day with a recovery efficiency of 80 % of water and 45.6 % of energy (thermal).

Karma is a Swedish startup founded in Stockholm, November 2016. Their app connects surplus food from restaurants, cafes and grocery stores to consumers for a lower price. As a result, users eat great food for less and businesses receive an additional revenue stream — all while reducing food waste.

Since 2012, SWEETS hotel has been adapting Amsterdam's abandoned bridge houses into unique flats, thus preventing their demolition.

The Finnish city of Lahti has been pioneering industrial symbiosis at the Kujala Waste Treatment Centre where all sorts of waste are reused. Several companies have established interconnected material flows, thus making one’s residues another one’s raw materials. 

Globe Hope, a Finnish textiles and cosmetics SME, has been creating bags and accessories from recycled and leftover materials since 2003.

Karün is a Swedish-Chilean company producing sunglass frames entirely from discarded fishing nets and jeans, collected in Patagonia.

NAFIGATE’s Hydal Biotechnology uses waste cooking oil to produce a fully biodegradable and biocompatible PHA biopolymer named Hydal (Polyhydroxyalcanoates). This is the first biopolymer of its kind being produced on an industrial scale at an affordable price.

SK-Tex takes old clothing and turns it into products that can be used in cars, furniture and buildings. The company has been in operation since 1998, beginning as a textile raw materials trading company before developing into a recycling company.

Vienna's Municipal Department 48, responsible for the city's waste management, has been active in re-use since 1989, when the city’s first re-use shop was founded. In Summer 2015, the Department opened the 48-er Tandler: a mobile re-use shop where citizens can buy affordable, quality second-hand goods and whose proceeds go entirely to charity. 

Orange Fiber has closed the loop for oranges by patenting a technique to squeeze orange peel and citrus waste into cellulose fibre. With growing demand for sustainable fashion, the company is well placed to commence production in 2019, having already prototyped a collection with Salvatore Ferragamo and won the Global Change Awars

Elak is a family-run electronics store in Brussels which has adopted a circular approach to its e-commerce activities from the onset.

Kierratyskeskus is a growing chain of seven big box re-use stores, selling all possible furniture, household items and craft supplies in the Helsinki area.

Ecotrel is the waste electrical and electronic equipment (EEE) recycling association for all of Luxembourg which has recently launched a "circularity and solidarity cluster" of business and social enterprises. These take back WEEE in order to re-use, disassemble or recycle it, and also to delete the personal data still stored in electronic waste.