| Business | Phone |
| Supervisor Office 400 Wheeler Dr, Geneva 60134 | (630) 232-3604 |
| Geneva City Esda 15 S 1st St, Geneva 60134 | (630) 232-9555 |
| Geneva City Esda 1800 S Geneva, Geneva 60134 | (630) 232-9555 |
| Geneva City Finance 22 S 1st St, Geneva 60134 | (630) 232-0854 |
| Geneva City Information System 22 S 1st St, Geneva 60134 | (630) 232-1743 |
| Geneva Electric Dept 1800 South St, Geneva 60134 | (630) 232-1503 |
| Geneva Sewage Treatment Plant 602 Crissey Ave, Geneva 60134 | (630) 232-4060 |
| Geneva Twp Hwy Commissioner 400 Wheeler Dr, Geneva 60134 | (630) 232-3602 |