| Business | Phone |
| Board Of Ed-Maintenance Dept 260 E Winchester St, Gallatin 37066 | (615) 451-5255 |
| Sumner 4-H Club Office 155 E Main St # A, Gallatin 37066 | (615) 452-1423 |
| Sumner County Building Comm 355 Belvedere Dr N # 202, Gallatin 37066 | (615) 452-1467 |
| Sumner County Correction Adm 225 E Main St, Gallatin 37066 | (615) 451-6047 |
| Sumner County Data Processing 355 Belvedere Dr N # 205, Gallatin 37066 | (615) 451-6012 |
| Sumner County Detective 117 W Smith St, Gallatin 37066 | (615) 451-3425 |
| Sumner County Drug Task Force 1194 Long Hollow Pike, Gallatin 37066 | (615) 451-6021 |
| Sumner County E911 Comms 411 S Water Ave, Gallatin 37066 | (615) 451-1200 |
| Sumner County Emergency Med 411 S Water Ave, Gallatin 37066 | (615) 451-0429 |
| Sumner County Executive Office 355 Belvedere Dr N # 102, Gallatin 37066 | (615) 452-3604 |
| Sumner County General Sessions 117 W Smith St, Gallatin 37066 | (615) 452-4310 |
| Sumner County Law Director 355 Belvedere Dr N # 208, Gallatin 37066 | (615) 451-6060 |
| Sumner County Register's Office 355 Belvedere Dr N # 201, Gallatin 37066 | (615) 452-3892 |
| Sumner County Registrar Voters 355 Belvedere Dr N # 106, Gallatin 37066 | (615) 452-1456 |
| Sumner County Trustee 355 Belvedere Dr N # 107, Gallatin 37066 | (615) 452-1260 |
| Sumner County Veteran Svc Center 355 Belvedere Dr N, Gallatin 37066 | (615) 451-6014 |
| Sumner Risk Insurance Managers 355 Belvedere Dr N # 210, Gallatin 37066 | (615) 451-6023 |
| Finance Administration 355 Belvedere Dr N # 110, Gallatin 37066 | (615) 451-6026 |
| Finance Directors 355 Belvedere Dr N # 110, Gallatin 37066 | (615) 451-6051 |
| Finance-Accounts Payable 355 Belvedere Dr N # 110, Gallatin 37066 | (615) 451-6033 |
| Finance-Budgets 355 Belvedere Dr N # 110, Gallatin 37066 | (615) 451-6049 |
| Finance-Payroll 355 Belvedere Dr N # 110, Gallatin 37066 | (615) 451-6048 |
| Highway Garage 1051 Old Highway 109 N, Gallatin 37066 | (615) 452-2632 |