Water2REturn was an Innovation Action co-funded by the European Commission under its Horizon 2020 programme. It focused on the recovery and recycling of nutrients from slaughterhouse wastewater as part of a circular economy model.

Kalundborg Symbiosis is a partnership between 17 public and private companies in Kalundborg, Denmark built around industrial symbiosis.

ReLondon is a partnership of the Mayor of London and London’s boroughs which aims to improve waste and resource management in the capital and accelerate its transition to a low-carbon circular city. 

Generally, it wants to help London waste less and reuse, repair, share and recycle more.