 | Mayor of Hajdúböszörmény (Hajdúböszörmény város polgármestere) | Hungary | EN |
| Mayor of Hajdúböszörmény (Hajdúböszörmény város polgármestere) | Hungary | HU |
| Municipality of Breda (Gemeente Breda) | Netherlands | EN |
| Barcelona Provincial Council (Diputació de Barcelona) | Spain | EN |
| Barcelona Provincial Council (Diputació de Barcelona) | Spain | ES |
| City of Växjö (Växjö kommun) | Sweden | EN |
| Central Denmark Region (Region Midtjylland - Regional Udvikling ) | Denmark | EN |
| Central Denmark Region (Region Midtjylland - Regional Udvikling ) | Denmark | DA |
| Autonomous Community of Valencia (Generalitat Valenciana) | Spain | EN |
| Autonomous Community of Valencia (Generalitat Valenciana) | Spain | ES |
| Municipality of Pla del Penedès (Ajuntament del Pla del Penedès) | Spain | EN |
| Municipality of Pla del Penedès (Ajuntament del Pla del Penedès) | Spain | ES |
| Veneto Energy Consortium (Consorzio CEV) | Italy | EN |
 | Veneto Energy Consortium (Consorzio CEV) | Italy | IT |
| Municipality of Sant Just Desvern (Ajuntament de Sant Just Desvern) | Spain | ES |
| Municipality of Sant Just Desvern (Ajuntament de Sant Just Desvern) | Spain | EN |
| Zealand Region (Region Sjælland) | Denmark | DE |
| Zealand Region (Region Sjælland) | Denmark | EN |
| Zealand Region (Region Sjælland) | Denmark | DA |
| Municipality of Canyelles (Ayuntamiento de Canyelles) | Spain | ES |
| Municipality of Canyelles (Ayuntamiento de Canyelles) | Spain | EN |
| Marshal's Office of the Lodzkie Region (Urząd Marszałkowski Województwa Łódzkiego) | Poland | PL |
| Marshal's Office of the Lodzkie Region (Urząd Marszałkowski Województwa Łódzkiego) | Poland | EN |
| Municipality of Sant Hipòlit de Voltregà (Ajuntament de Sant Hipòlit de Voltregà) | Spain | ES |
| Municipality of Sant Hipòlit de Voltregà (Ajuntament de Sant Hipòlit de Voltregà) | Spain | EN |
| Olomouc Region (Olomoucký kraj) | Czech Republic | CS |
| Olomouc Region (Olomoucký kraj) | Czech Republic | EN |
| Sardinia Autonomous Region (Regione Autonoma della Sardegna) | Italy | IT |
| Sardinia Autonomous Region (Regione Autonoma della Sardegna) | Italy | EN |
| Flemish Government (Vlaamse Overheid) | Belgium | NL |
| Flemish Government (Vlaamse Overheid) | Belgium | EN |
| City of Mülheim an der Ruhr (Stadt Mülheim an der Ruhr) | Germany | DE |
| City of Mülheim an der Ruhr (Stadt Mülheim an der Ruhr) | Germany | EN |
| Gdynia City Council (Urząd miasta Gdyni) | Poland | PL |
| Gdynia City Council (Urząd miasta Gdyni) | Poland | EN |
| Aberdeen City Council | United Kingdom | EN |
| ENERGAIA _ Energy Agency South of Oporto Metropolitan Area | Portugal | EN |
| Ferreira do Alentejo Municipal Council (Câmara Municipal de Ferreira do Alentejo) | Portugal | PL |
| Ferreira do Alentejo Municipal Council (Câmara Municipal de Ferreira do Alentejo) | Portugal | EN |
| City of Amsterdam (Gemeente Amsterdam) | The Netherlands | NL |
| City of Amsterdam (Gemeente Amsterdam) | The Netherlands | EN |
| Blagoevgrad Municipality (Община Благоевград) | Bulgaria | BG |
| Blagoevgrad Municipality (Община Благоевград) | Bulgaria | EN |
| Duero-Douro EGTC (Agrupacion Europea de Cooperacion Territorial Duero – Douro EGTC) | Portugal & Spain | ES |
| Duero-Douro EGTC (Agrupacion Europea de Cooperacion Territorial Duero – Douro EGTC) | Portugal & Spain | EN |
| City of Prague (Hlavní město Praha) | Czech Republic | CS |
| City of Prague (Hlavní město Praha) | Czech Republic | EN |
| Marshal's Office of the Mazowsze Region in Warsaw (Urząd Marszałkowski Województwa Mazowieckiego w Warszawie) | Poland | PL |
| Marshal's Office of the Mazowsze Region in Warsaw (Urząd Marszałkowski Województwa Mazowieckiego w Warszawie) | Poland | EN |
| Municipality of Topolcany (Mesto Topoľčany) | Slovakia | EN |
| Municipality of Topolcany (Mesto Topoľčany) | slovakia | SK |
| City of Bialystok (Urząd Miejski w Białymstoku) | Poland | PL |
| City of Bialystok (Urząd Miejski w Białymstoku) | Poland | EN |
| Extremadura Regional Government (Gobierno de Extremadura) | Spain | ES |
| Extremadura Regional Government (Gobierno de Extremadura) | Spain | EN |
| Umbria Region (Regione Umbria) | Italy | EN |
| Umbria Region (Regione Umbria) | Italy | IT |
| Prahova County Council (Consiliul judetean Prahova) - unofficial | Romania | EN |
| Prahova County Council (Consiliul judetean Prahova) | Romania | RO |
| Prahova County Council (Consiliul judetean Prahova) - offical | Romania | EN |
| Extremadura Regional Parliament (Parlamento de Extremadura) | Spain | EN |
| Extremadura Regional Parliament (Parlamento de Extremadura) | Spain | ES |
| Municipality of Antsla (Antsla vald) | Estonia | ET |
| Municipality of Antsla (Antsla vald) | Estonia | EN |
| Basque Government (Gobierno Vasco) | Spain | EN |
| Basque Government (Gobierno Vasco) | Spain | ES |
| Andalusia autonomous community (Junta de Andalucía) | Spain | EN |
| Andalusia autonomous community (Junta de Andalucía) | Spain | ES |
| Bratislava Self-Governing Region (Bratislavský samosprávny kraj) | Slovakia | SK |
| Bratislava Self-Governing Region (Bratislavský samosprávny kraj) | Slovakia | EN |
| Autonomous Government of Catalonia (Generalitat de Catalunya) | Spain | ES |
| Autonomous Government of Catalonia (Generalitat de Catalunya) | Spain | EN |
| Vacarisses Municipality (Ayuntamiento de Vacarisses) | Spain | ES |
| Vacarisses Municipality (Ayuntamiento de Vacarisses) | Spain | EN |
| Karşıyaka Municipality (Karşıyaka Belediyesi) | Turkey | EN |
| Municipality of san Vicente del Raspeig (Ayuntamiento san Vicente del Raspeig) | Spain | EN |
| Municipality of san Vicente del Raspeig (Ayuntamiento san Vicente del Raspeig) | Spain | ES |
| Municipality of Valmiera (Valmieras pilsētas pašvaldība) | Latvia | FR |
| Municipality of Valmiera (Valmieras pilsētas pašvaldība) | Latvia | LV |
| Municipality of Valmiera (Valmieras pilsētas pašvaldība) | Latvia | EN |
| City of Delft (Gemeente Delft) | The Netherlands | EN |
| City of Delft (Gemeente Delft) | The Netherlands | NL |
| Energy Cities | Belgium | EN |
| City of Arnsberg (Stadt Arnsberg) | Germany | DE |
| City of Arnsberg (Stadt Arnsberg) | Germany | EN |
| EGTC Efxini Poli | Greece | EN |
| Łódź city council (Urząd Miasta Łodzi) | Poland | PL |
| Łódź city council (Urząd Miasta Łodzi) | Poland | DE |
| Łódź city council (Urząd Miasta Łodzi) | Poland | EN |
| Lisbon City Council (Câmara Municipal de Lisboa) | Portugal | EN |
| Lisbon City Council (Câmara Municipal de Lisboa) | Portugal | PT |
| Rousse Municipality (Община Русе) | Bulgaria | BG |
| Vratsa Municipality (Община Враца) | Bulgaria | BG |
| Vidin Municipality (Община Видин) | Bulgaria | BG |
| Pazardijk Municipality (Община Пазарджик) | Bulgaria | EN |
| Pazardijk Municipality (Община Пазарджик) | Bulgaria | BG |
| Dobrich Municipality (Община град Добрич) | Bulgaria | EN |
| Dobrich Municipality (Община град Добрич) | Bulgaria | BG |
| Shvishtov Municipality (Община Свищов) | Bulgaria | EN |
| Shvishtov Municipality (Община Свищов) | Bulgaria | BG |
| Agios Athanasios Municipality (δημοσ αγιου αθανασιου) | Cyprus | EL |
| Agios Athanasios Municipality (δημοσ αγιου αθανασιου) | Cyprus | EN |
| Trollhättan Municipality (Trollhättans stad) | Sweden | SV |
| Elektrėnai Municipality (Elektrėnų savivaldybė) | Lithuania | DE |
| Elektrėnai Municipality (Elektrėnų savivaldybė) | Lithuania | EN |
| Elektrėnai Municipality (Elektrėnų savivaldybė) | Lithuania | LT |
 | Trollhättan Municipality (Trollhättans stad) | Sweden | EN |
