| Business | Phone |
| William's Bay Main Lift Sta 1 50 Stark St, Williams Bay 53191 | (262) 245-9298 |
| Williams Bay Garage 230 Williams St, Williams Bay 53191 | (262) 245-2706 |
| Williams Bay Village Hall 250 Williams St, Williams Bay 53191 | (262) 245-2700 |
| Williams Bay Water Billing 250 Williams St, Williams Bay 53191 | (262) 245-2703 |
| Lake Geneva Water Safety Ptrl 301 Constance Blvd, Williams Bay 53191 | (262) 248-4436 |
| Lions Field House 310 Elkhorn Rd, Williams Bay 53191 | (262) 245-9581 |