| Business | Phone |
| Addison Township Admin 401 N Addison Rd, Addison 60101 | (630) 530-8161 |
| Addison Village Offices 1 Friendship Plz, Addison 60101 | (630) 543-4100 |
| Addison Village Offices 163 W Michael Ln, Addison 60101 | (630) 543-2317 |
| Addison Waste Water Plants 711 N Addison Rd, Addison 60101 | (630) 279-2140 |