| 1 | | Rybnicka 47 | Gliwice |  PL | | Water Utility Company | +48 324284444 | N/A | Agnieszka Batog |
| 2 | | Wschodnia 1 | Myślibórz | PL | | Government Office | +48 957473121 | N/A | N/A |
| 3 | | Stefana Żeromskiego 39 | Piaseczno | PL | | Water Utility Company | +48 227502320 | N/A | N/A |
| 4 | | Obwodowa 6 | Giżycko | PL | | Water Utility Company | +48 874299171 | N/A | N/A |
| 5 | | Polna 77 | Garwolin | PL | | Water Utility Company, Heating Contractor, Sewage Treatment Plant | +48 256843863 | N/A | N/A |
| 6 | | Opolska 51 | Tarnowskie Góry | PL | | Water Utility Company | +48 327840233 | N/A | N/A |
| 7 | | Wojska Polskiego 17 | Łobez | PL | | Water Utility Company | +48 913974785 | N/A | N/A |
| 8 | | Tunelowa 17 | Olecko | PL | | Water Utility Company | +48 875230097 | N/A | N/A |
| 9 | | Toruńska 18 | Lubawa | PL | | Corporate Office | +48 896452243 | N/A | N/A |
| 10 | | Wyszkowska 2 | Pułtusk | PL | | Water Works | +48 236921779 | N/A | N/A |
| 11 | | Oficerska 16A | Olsztyn | PL | | Water Utility Company | +48 895266606 | N/A | N/A |
| 12 | | Miłosławska 8 | Września | PL | | Water Utility Company | +48 614360547 | N/A | N/A |
| 13 | | Kochanowskiego 28 | Sztum | PL | | Water Utility Company | +48 552772604 | N/A | N/A |
| 14 | | Bolesława Chrobrego 26 | Biskupiec | PL | | Water Utility Company | +48 897153010 | N/A | N/A |
| 15 | | Marszałka Józefa Piłsudskiego 18 | Lidzbark Warmiński | PL | | Water Utility Company | +48 897671504 | N/A | N/A |
| 16 | | Rokitniańska 4 | Przemyśl | PL | | Water Utility Company, Public Utility | +48 166783259 | N/A | N/A |
| 17 | | Generała Sikorskiego 9A | Gołdap | PL | | Water Utility Company | +48 876154949 | N/A | N/A |
| 18 | | Inżynierska 1a | Zielonka | PL | | Corporate Office | +48 227818333 | N/A | N/A |
| 19 | | Nowy Świat 2A | Kalisz | PL | | Water Utility Company | +48 627608011 | N/A | N/A |
| 20 | | Kluczewska 4 | Olkusz | PL | | Water Utility Company | +48 326431415 | N/A | N/A |
