| Business | Phone |
| Abilita Telecom Consultants 625 Indian Mound Rd, Columbus 43213 | (614) 861-5536 |
| Weber Associates 330 W Spring St # 100, Columbus 43215 | (614) 222-6806 |
| American Export Telephone Co 1550 Old Henderson Rd, Columbus 43220 | (614) 457-1284 |
| Analicomm Inc 2309 Oxford Rd, Columbus 43221 | (614) 486-5077 |
| Tec Specs 279 E Livingston Ave, Columbus 43215 | (614) 224-9610 |
| Blauhaus Media Inc 57 S Cassingham Rd, Columbus 43209 | (614) 237-5587 |
| Bresco Solutions 20 W Morrill Ave, Columbus 43207 | (614) 469-9000 |
| Calltech Communications 4335 Equity Dr, Columbus 43228 | (614) 621-5858 |
| Recovered Capital Corp 1525 Bethel Rd, Columbus 43220 | (614) 457-0939 |
| Convention Communications 1144 Goodale Blvd, Columbus 43212 | (614) 488-7300 |
| Pioneer Electronics Usa Inc 2161 Dividend Dr, Columbus 43228 | (614) 771-1050 |
| Ethan Interactive 1160 N High St, Columbus 43201 | (614) 298-0289 |
| Execnet 1311 Studer Ave, Columbus 43206 | (614) 444-6693 |
| Miguel Perez Group 17 Brickel St, Columbus 43215 | (614) 225-9100 |
| Knowledge Group 1487 W 5th Ave, Columbus 43212 | (614) 340-2760 |
| Ixc Communications 428 Reynolds Ave, Columbus 43201 | (614) 298-9230 |
| Jen Communications Inc 258 E Campus View Blvd, Columbus 43235 | (614) 847-4601 |