| Business | Phone |
| Private Industry Council Altamont 37301 | (931) 692-3792 |
| Grundy County Circuit Ct Clerk Cumberland St, Altamont 37301 | (931) 692-3368 |
| Grundy County Election Comm Highway 56 & Main Stamp;, Altamont 37301 | (931) 692-3551 |
| Grundy County General Sessions Courthouse, Altamont 37301 | (931) 692-3398 |
| Grundy County Mayor Office 68 Cumberland St, Altamont 37301 | (931) 692-3718 |
| Grundy County Register-Deeds Cumberland St, Altamont 37301 | (931) 692-3621 |
| Grundy County Trustee Cumberland St # 116, Altamont 37301 | (931) 692-3369 |