| Business | Phone |
| Alliance Communications Sltns 8905 Lindbergh Blvd, Cleveland 44138 | (440) 234-1770 |
| Belmont Communications Inc 1128 W Pleasant Valley Rd, Cleveland 44134 | (440) 838-5888 |
| Black Box Network Svc 6770 W Snowville Rd, Cleveland 44141 | (440) 526-9281 |
| Briar Enterprises Inc 434 Locklie Dr, Cleveland 44143 | (440) 442-1866 |
| Warwick Leasing Inc 2806 Payne Ave, Cleveland 44114 | (216) 787-0300 |
| Cls 7395 Brecksville Rd, Cleveland 44131 | (216) 524-7711 |
| Cls Svc Inc 1387 Marlowe Ave, Cleveland 44107 | (216) 228-1106 |
| Communication Solutions Inc 4511 Brookpark Rd, Cleveland 44134 | (216) 661-5878 |
| Communications Technology Corp 1717 E 36th St, Cleveland 44114 | (216) 696-8300 |
| Ctec Voice Data Comm 22368 Lorain Rd, Cleveland 44126 | (440) 979-1100 |
| Cts Communications 4711 Brookpark Rd, Cleveland 44134 | (216) 472-0318 |
| Total Telecommunications 26523 Redwood Dr, Cleveland 44138 | (440) 235-5570 |
| Davissa Telephone Systems Inc 23800 Commerce Park # B, Cleveland 44122 | (216) 464-6633 |
| Digital & Analog Design Corp 6910 Treeline Dr # E, Cleveland 44141 | (440) 526-2500 |
| Digital Matrix 5725 Canal Rd # C, Cleveland 44125 | (216) 573-0977 |
| Technique Systems 17390 Bennett Rd, Cleveland 44133 | (440) 237-8580 |
| Technology Convergence Group 6930 W Snowville Rd, Cleveland 44141 | (440) 740-0500 |
| Tele-Communications Inc 5125 W 140th St, Cleveland 44142 | (216) 267-0800 |
| Tele-Solutions Inc 9921 York Alpha Dr, Cleveland 44133 | (440) 237-0227 |
| Telecom Products Corp Cleveland 44113 | (216) 787-0100 |
| Telecom Professionals Inc 10213 Runnymede Ave, Cleveland 44125 | (216) 641-9200 |
| Teletronics 1200 Valley Belt Rd, Cleveland 44131 | (216) 778-6500 |
| Doan Pyramid Communications 5055 Corbin Dr, Cleveland 44128 | (216) 395-5935 |
| Dominion Enterprises 27801 Euclid Ave, Cleveland 44132 | (216) 261-8118 |
| Spectra Link Corp 1738 Nemet Dr, Cleveland 44131 | (216) 328-9633 |
| Erm Communications 23240 Chagrin Blvd, Cleveland 44122 | (216) 378-8987 |
| Fairfield Communications Corp 5252 Ridge Rd, Cleveland 44129 | (216) 398-1700 |
| Secure Line Systems Inc 25949 Westwood Rd, Cleveland 44145 | (440) 892-0200 |
| Gts Communications 23146 Lorain Rd, Cleveland 44126 | (440) 734-8866 |
| Preferred Communications 686 Alpha Dr, Cleveland 44143 | (440) 720-0000 |
| Information Transport Systems 30314 Provincetown Ln, Cleveland 44140 | (440) 892-5510 |
| Jeffrey Joseph Inc 10220 Broadview Rd, Cleveland 44147 | (440) 717-5333 |
| Nec Business Network Solutions 6935 Treeline Dr, Cleveland 44141 | (440) 746-0033 |
| New Generation Comms Inc 7005 Mill Rd, Cleveland 44141 | (440) 546-1230 |