Alentejo

Autonomous Province of Bolzano-Bozen/South Tyrol

Brandenburg

Bretagne

Community of Madrid

Comunitat Valenciana

Dubrovnic-Neretva County

Flanders

Harguita / Ialomita Counties

Hauts-de-France

Helsinki-Uusimaa

Limburg (in collaboration with Gelderland, Zuid-Holland, Overijssel, Tilburg)

Mazowieckie Voivodeship

North Rhine-Westphalia

Northern and Western Region

Oberösterreich

Thessaly

Umbria / Veneto

Vorarlberg (leading the Internationale Bodensee Konferenz)

Zachodniopomorskie

Brodsko-povaska

Calabria

Catalonia

Crete

Emilia-Romagna

Friuli Venezia Giulia

kohezijska Vzhodna

Košice Self-governing Region

Lower Silesia

Marche

Molise

Piedmont

Primorsko-Goranska

Sibenik-Knin

Silesia - TITRIA

Tolna

Zavaska