| Business | Phone |
| Janesville Street Dept 18 N Jackson St, Janesville 53548 | (608) 755-3110 |
| Dawson Ball Field 920 Beloit Ave, Janesville 53546 | (608) 755-3010 |
| Janesville City Compost 525 Black Bridge Rd, Janesville 53545 | (608) 755-3105 |
| Janesville City Finance Dir 18 N Jackson St, Janesville 53548 | (608) 755-3024 |
| Janesville Engineering 18 N Jackson St, Janesville 53548 | (608) 755-3160 |
| Janesville Plumbing Inspector 18 N Jackson St, Janesville 53548 | (608) 755-3060 |
| Janesville Housing Complaints 200 W Milwaukee St, Janesville 53548 | (608) 755-3107 |
| Janesville Ice Arena 821 Beloit Ave, Janesville 53545 | (608) 755-3015 |
| Janesville Leisure Svc 17 N Franklin St, Janesville 53548 | (608) 755-3030 |
| Janesville Manager 18 N Jackson St, Janesville 53548 | (608) 755-3177 |
| Janesville Municipal Bldg 18 N Jackson St, Janesville 53548 | (608) 755-3000 |
| Janesville Personnel 18 N Jackson St, Janesville 53548 | (608) 755-3080 |
| Janesville Planning 18 N Jackson St, Janesville 53548 | (608) 755-3085 |
| Janesville Wastewater Plant 3300 W Tripp Rd, Janesville 53548 | (608) 755-3120 |
| La Prairie Park Pistol Range 1100 S Read Rd, Janesville 53546 | (608) 754-9789 |
| Lincoln-Tallman Restorations 440 N Jackson St, Janesville 53548 | (608) 752-4519 |
| Town Of Harmony 440 E Us Highway 14, Janesville 53545 | (608) 741-1034 |
| Traxler Park Warming House 700 S Main St, Janesville 53545 | (608) 754-9849 |
| Voter Registration 18 N Jackson St, Janesville 53548 | (608) 755-3070 |