| Group |
| Aglomeracja Kalisko-Ostrowska |
| Angers Loire Métropole |
| Ave Intermunicipal Community |
| Baixo Alentejo Intermunicipal Communi |
| Barcelona Metropolitan Area |
| Bordeaux Métropole |
| Budapest City |
| Clermont Auvergne Métropole |
| Cluj Metropolitan area |
| Cork City |
| Cávado Intermunicipal Community |
| Dublin City |
| Eurometropole de Strasbourg |
| Galway City |
| Galway County |
| Gothernburg Metropolitan Area |
| Groene Metropoolregio Arnhem-Nijmegen |
| Intermunicipal Community of Alentejo |
| KLAR! March- Thaya-Auen |
| KLAR! Murraum Leoben |
| KLAR! Naturpark Ötscher-Tormäuer |
| KLAR! Nockregion |
| KLAR! Steirische Eisenwurzen |
| KLAR! Stiefingtal |
| KLAR! Wachau-Dunkelsteinerwald-Jauerl |
| KLAR! Zukunftsregion Ennstal |
| La Rochelle Urban Community |
| Lisbon Metropolitan Area |
| Louth |
| Mayo |
| Mountain Community of Valchiavenna |
| Médio Tejo Intermunicipal Community |
| Métropole Européenne de Lille |
| Nantes Métropole |
| Network City Twente |
| Offaly |
| Rouen Normandie Métropole |
| Römerland Carnuntum |
| Sligo |
| The Icelandic Association of Local Au |
| Tipperary County |
| Toulouse Métropole |
| Warsaw City |
| Wroclaw |
| Łódź City |
|
| <all other values> |
