| Business | Phone |
| Addie Water Systems Inc 1520 Plainfield Ave, Janesville 53545 | (608) 755-1031 |
| Abt Water Treatment Inc 2229 Beloit Ave, Janesville 53546 | (608) 531-0055 |
| Assurance Air & Water Purify Janesville 53545 | (608) 741-5775 |
| E & D Water Works Inc 915 N Parker Dr, Janesville 53545 | (608) 752-4718 |
| Integrity Water Solution 2708 Omaha Dr, Janesville 53546 | (608) 295-3727 |
| Martelle Water Treatment 2275 Royal Oaks Dr, Janesville 53548 | (608) 757-9371 |
| R A Skaife Enterprises 4430 Tanglewood Dr, Janesville 53546 | (608) 754-0900 |
| Kinetico 2116 Center Ave, Janesville 53546 | (608) 752-1832 |