| Business | Phone |
| Mequon City Finance 11333 N Cedarburg Rd, Thiensville 53092 | (262) 236-2947 |
| Mequon City Building Inspect 11333 N Cedarburg Rd, Thiensville 53092 | (262) 236-2924 |
| Mequon City Engineering 11333 N Cedarburg Rd, Thiensville 53092 | (262) 236-2934 |
| Mequon City Human Resources 11333 N Cedarburg Rd, Thiensville 53092 | (262) 236-2915 |
| Mequon City Planning 11333 N Cedarburg Rd, Thiensville 53092 | (262) 236-2902 |