| Business | Phone |
| County Garages 12953 County Road G, Bryan 43506 | (419) 636-2854 |
| Owe Program 406 N Union St, Bryan 43506 | (419) 636-9090 |
| State Examiners Office 100 S Main St, Bryan 43506 | (419) 636-6812 |
| Williams Cnty Ohio St Univ Ext 1122 W High St, Bryan 43506 | (419) 636-5608 |
| Williams County Commissioners 1 Courthouse Sq, Bryan 43506 | (419) 636-2059 |
| Williams County Common Pleas 100 S Main St, Bryan 43506 | (419) 636-2644 |
| Williams County Communications 210 N Beech St, Bryan 43506 | (419) 636-8497 |
| Williams County Dog Warden 9992 County Road 16, Bryan 43506 | (419) 636-4659 |
| Williams County Election Board 228 S Main St, Bryan 43506 | (419) 636-1854 |
| Williams County Ems 5842 State Route 15, Bryan 43506 | (419) 636-6751 |
| Williams County Engineer 12953 County Road G, Bryan 43506 | (419) 636-2454 |
| Williams County Juvenile Dept 1 Courthouse Sq, Bryan 43506 | (419) 636-2934 |
| Williams County Prosecutor 1210 W High St, Bryan 43506 | (419) 636-4411 |
| Williams County Recorder 1 Courthouse Sq, Bryan 43506 | (419) 636-3259 |
| Williams County Records Mgmt 107 W Butler St, Bryan 43506 | (419) 636-8253 |
| Williams County Regl Planning 1 Courthouse Sq, Bryan 43506 | (419) 636-1073 |
| Williams County Soil & Water 1120 W High St, Bryan 43506 | (419) 636-9395 |
| Williams County Title Office 13065 County Road D50 # B, Bryan 43506 | (419) 636-1915 |
| Williams County Veterans Svc 228 S Main St, Bryan 43506 | (419) 636-8812 |
| Williams County Victim's 228 S Main St, Bryan 43506 | (419) 636-6195 |
| Williams County Work Force 228 S Main St, Bryan 43506 | (419) 636-0338 |