| Business | Phone |
| Trotwood City Building Dept 3035 Olive Rd, Trotwood 45426 | (937) 854-7216 |
| Trotwood City Council 3035 Olive Rd, Trotwood 45426 | (937) 854-7212 |
| Trotwood City Finance 3035 Olive Rd, Trotwood 45426 | (937) 854-7208 |
| Trotwood City Human Resources 3035 Olive Rd, Trotwood 45426 | (937) 854-7223 |
| Trotwood City Offices 3035 Olive Rd, Trotwood 45426 | (937) 837-7771 |
| Trotwood Planning & Develop 3035 Olive Rd, Trotwood 45426 | (937) 854-7221 |