For Heyliot (Hey l' IOT - Hey the Internet of Things) a finalist in 2018, the Circular Challenge had a snowball effect. Citeo challenged and supported them as entrepreneurs and developers of an innovative and disruptive solution. In 2019 Heyliot won a call for projects from Urban Lab, a Citeo partner, and had the opportunity to test its solution on the Trilib recycling points in the 13th arrondissement of Paris.  This was part of the 'Paris rive gauche' project. Through Citeo network contacts, Heyliot was able to secure commercial applications. Loic Coeurjoly, cofounder says: "Today we have the opportunity to deal with operators at a European level, we have very prestigious customers, and we have access to markets we never dreamed of.”