| Business | Phone |
| Lincoln Cnty Assoc Circuit Ct 45 Business Park Dr, Troy 63379 | (636) 528-6300 |
| Lincoln County 911 Addressing 200 Oak St, Troy 63379 | (636) 462-4911 |
| Lincoln County 911 Ofc 200 Oak St, Troy 63379 | (636) 528-2911 |
| Lincoln County Courthouse 201 Main St, Troy 63379 | (636) 528-6300 |
| Lincoln County Fairgrounds Fairgrounds Rd, Troy 63379 | (636) 528-6575 |
| Lincoln County Ind Dev Dept 200 Oak St, Troy 63379 | (636) 528-6182 |
| Lincoln County Juvenile Office 45 Business Park Dr, Troy 63379 | (636) 528-4332 |
| Lincoln County Public Admin 201 Main St, Troy 63379 | (636) 528-8287 |
| Lincoln County University Ext 880 W College St, Troy 63379 | (636) 528-4613 |
| Tri-County Engineering Inc 193 E Collier St, Troy 63379 | (636) 528-7110 |