| Business | Phone |
| City-Delphos Police Dept 125 E 2nd St, Delphos 45833 | (419) 692-4015 |
| Delphos Municipal Bldg Offices 608 N Canal St, Delphos 45833 | (419) 695-4010 |
| Delphos Safety Dept 125 E 2nd St, Delphos 45833 | (419) 238-1156 |
| Little League Diamond Stadium Park, Delphos 45833 | (419) 695-4710 |
| Marion Township 5405 Kiggins Rd, Delphos 45833 | (419) 692-8846 |