| Business | Phone |
| Campbell Community Building Highway 62, Campbell 63933 | (573) 246-9883 |
| Campbell Light Dept 302 W Grand Ave, Campbell 63933 | (573) 246-2541 |
| Union Twp Office 316 W Grand Ave, Campbell 63933 | (573) 246-2221 |
| Union Twp Office Highway B, Campbell 63933 | (573) 246-2221 |
| Treatment Plant Highway 53 S, Campbell 63933 | (573) 246-2249 |
| Power Plant Mill St, Campbell 63933 | (573) 246-2575 |