| Business | Phone |
| Accomplish Computing Madison 53702 | (608) 209-1966 |
| Berbee Information Networks 5520 Research Park Dr, Madison 53711 | (608) 288-3000 |
| Computer & Networking Solution 144 Owen Rd, Madison 53716 | (608) 274-9910 |
| Direct Networks 1710 Applegate Rd 100, Madison 53713 | (608) 270-9980 |
| Enterprise Solutions Tech Inc 403 W Washington Ave, Madison 53703 | (608) 287-0222 |
| Powernet Consulting Group Ltd 801 Atlas Ave, Madison 53714 | (608) 222-2979 |
| Paragon Development Systems 361 Blettner Blvd, Madison 53714 | (608) 836-2700 |
| Mode Computer Svc 2960 Triverton Pike Dr, Madison 53711 | (608) 278-1888 |
| New Vision Networks 5936 Seminole Centre Ct, Madison 53711 | (608) 442-6802 |