| Business | Phone |
| Active Networking 8001 Sweet Valley Dr, Cleveland 44125 | (216) 328-1122 |
| Winncom Technologies Inc 30700 Carter St # A, Cleveland 44139 | (440) 498-9510 |
| Western Datacom Co 959 Bassett Rd # B, Cleveland 44145 | (440) 835-1510 |
| Codex Corp 6000 Lombardo Ctr, Cleveland 44131 | (216) 447-9980 |
| Data Serv 29260 Clemens Rd, Cleveland 44145 | (440) 892-2555 |
| Datapro Systems Intl Inc 12700 Lake Ave, Cleveland 44107 | (216) 227-2350 |
| Delta Communications Group 22265 Hilliard Blvd, Cleveland 44116 | (216) 674-9000 |
| Tec Communications Inc 20234 Detroit Rd, Cleveland 44116 | (440) 333-5903 |
| Equix Computer Corp 23500 Mercantile Rd # F, Cleveland 44122 | (216) 360-0200 |