| Business | Phone |
| Central Telephone Sales & Svc 12853 Industrial Park Blvd, Plymouth 55441 | (763) 550-2000 |
| Matrix Communications Inc 171 Cheshire Ln N # 700, Plymouth 55441 | (763) 475-5500 |
| Microtalk Technologies Inc 1900 Annapolis Ln N, Plymouth 55441 | (763) 557-6434 |
| Nova Communications 14100 Carlson Pkwy # 100, Plymouth 55441 | (952) 473-2100 |
| Universal Capital 15695 Medina Rd, Plymouth 55447 | (763) 577-4200 |