| Name of the organization | Description | Address / Location | Contact Details |
| MUNICIPALITY OF THESSALONIKI-OTA. | Local government office | Leof. Vasileos Georgiou 1, Thessaloniki 546 40, Greece | 302313317777 |
| Prefecture of Thessaloniki | District government office | Leof. Vasilissis Olgas 198, Thessaloniki 546 55, Greece | 302313319693 |
| Διεύθυνση Αστικού Σχεδιασμού και Αρχιτεκτονικών Μελετών Δήμου Θεσσαλονίκης | Government office | Aggelaki 14, Thessaloniki 546 21, Greece | |
| Thessaloniki Regional Asylum Office | Government office | Pontou 30, Ampelokipi Menemeni 546 28, Greece | |
| Υποθηκοφυλακείο Θεσσαλονίκης | Government office | 44, Sapfous Street, Thessaloniki 546 27, Greece | 302310526003 |
| Municipality of Thessaloniki | Government office | Akropoleos 6, Thessaloniki 546 34, Greece | 302310494401 |
| Technical Services Building ThPA SA | Government office | Thessaloniki 546 27, Greece | |
| Ministry of Macedonia – Thrace | County government office | Proxenon 2, Thessaloniki 546 33, Greece | 302310379100 |
| Σ.ΕΠ.Ε. / Τμήμα Δυτικού Τομέα Θεσσαλονίκης | Government office | Esopou 22, Thessaloniki 546 27, Greece | |
| Region of Central Macedonia | Local government office | 26is Oktovriou 64, Thessaloniki 546 27, Greece |