| Business | Phone |
| Braun Corp 2829 Royal Ave, Madison 53713 | (608) 531-0024 |
| Braun Elevator Co 2829 Royal Ave, Madison 53713 | (608) 221-4400 |
| Progressive Electric Llc 1212 Spaight St, Madison 53703 | (608) 251-1509 |
| Alliance Electric Madison 53702 | (608) 852-3284 |
| Forward Electric 6900 Mangrove Ln, Madison 53713 | (608) 223-1438 |
| Town & Country Electric 4309 Neptune Ct, Madison 53714 | (608) 873-7800 |
| H & H Electric 350 S Hamilton St, Madison 53703 | (608) 251-0973 |
| Staff Electric 645 Science Dr, Madison 53711 | (608) 238-7208 |
| North American Mechanical Inc 5395 E Cheryl Pkwy, Madison 53711 | (608) 271-2302 |
| Eaton Electrical 4717 Splint Rd, Madison 53718 | (608) 838-5530 |
| Madison Gas & Electric Co 24 Hour Automated Account Info, Madison 53788 | (608) 252-4700 |