| Business | Phone |
| Conquest Highway Garage 10373 Slayton Rd, Port Byron 13140 | (315) 776-4319 |
| Conquest Supervisor 1289 Fuller Rd, Port Byron 13140 | (315) 776-8031 |
| Conquest Supervisor Slayton Rd, Port Byron 13140 | (315) 776-8031 |
| Conquest Transfer Station Port Byron 13140 | (315) 776-9090 |
| Montezuma Supervisor 7585 Fosterville Rd, Port Byron 13140 | (315) 776-4405 |
| Port Byron Clerk 52 Utica St, Port Byron 13140 | (315) 776-4321 |
| Port Byron Justice Of Peace Port Byron 13140 | (315) 776-9692 |
| Port Byron Municipal Building Port Byron 13140 | (315) 776-8670 |
| Port Byron Waste Water Plant 30 Clark St, Port Byron 13140 | (315) 776-5704 |
| Town Of Mentz Clerk 14 Mentz Dr, Port Byron 13140 | (315) 776-8692 |