| Business | Phone |
| Alpena City Building Official 208 N First Ave, Alpena 49707 | (989) 354-4252 |
| Alpena City Sewer Dept 210 Harbor Dr, Alpena 49707 | (989) 354-5942 |
| Alpena City Shelter Mich E Kewis Park, Alpena 49707 | (989) 354-8191 |
| Alpena Downtown Development 235 W Chisholm St, Alpena 49707 | (989) 356-6422 |
| Alpena Engineer 208 N First Ave, Alpena 49707 | (989) 356-9203 |
| Alpena Housing Commission 2340 S Fourth St, Alpena 49707 | (989) 354-3567 |
| Alpena Manager 208 N First Ave, Alpena 49707 | (989) 354-4158 |
| Building Inspector 4385 Us Highway 23 N, Alpena 49707 | (989) 356-9713 |
| Thunder Bay Shores Marina Inc 400 E Chisholm St, Alpena 49707 | (989) 356-0551 |
| Supervisor's Office 4385 Us Highway 23 N, Alpena 49707 | (989) 356-4024 |
| Sewage Treatment Plant 210 Harbor Dr, Alpena 49707 | (989) 354-4891 |
| Maple Ridge Township Hall 6010 Lacomb Rd, Alpena 49707 | (989) 354-5512 |