| Business | Phone |
| Dun-Well Svc Inc 50 S O St, Sparta 54656 | (608) 269-4203 |
| Fort Mc Coy Adjutant Sparta 54656 | (608) 388-3707 |
| Fort Mc Coy Civilian Personnel Sparta 54656 | (608) 388-2284 |
| Fort Mc Coy Information Oprtr Sparta 54656 | (608) 388-2222 |
| Fort Mc Coy Post Locator Fort Mccoy, Sparta 54656 | (608) 388-2225 |
| Us Finance Ofc 2014 Post Rd, Sparta 54656 | (608) 388-2211 |
| Us Provost Marshal Bldg 1760, Sparta 54656 | (608) 388-2267 |