| Business | Phone |
| Win-Win Communications 7870 Olentangy River Rd # 301, Columbus 43235 | (614) 846-2600 |
| American Telecom Group 4601 E 5th Ave, Columbus 43219 | (614) 338-3280 |
| Voice & Data Network Inc 400 N High St, Columbus 43215 | (614) 221-8040 |
| Bautel Communications 4776 Arlington Centre Blvd, Columbus 43220 | (614) 487-9444 |
| Teltron Technologies Group 911 Robinwood Ave # H, Columbus 43213 | (614) 239-9110 |
| Superior Communications Po Box 71, Columbus 43216 | (614) 488-1677 |
| Broadband Communications Group 5151 Reed Rd, Columbus 43220 | (614) 442-5510 |
| Speedwire Communications 6339 Karl Rd, Columbus 43229 | (614) 848-5637 |
| Sold On Hold 2862 Johnstown Rd, Columbus 43219 | (614) 523-3535 |
| Connectivity 1448 Atcheson St, Columbus 43203 | (614) 286-5000 |
| Practitioners Tele Comms Specs 30 Dillmont Dr # 133, Columbus 43235 | (614) 436-4029 |
| Converged Technologies Llc 1183 E Long St, Columbus 43203 | (614) 252-8611 |
| Digital Design 4650 Kenny Rd, Columbus 43220 | (614) 538-9222 |
| Outsource Your Phone System 4130 E 5th Ave, Columbus 43219 | (614) 255-6298 |
| Parallel Technology 7671 Smoketree Ct, Columbus 43235 | (614) 889-0053 |
| Executone 3930 Indianola Ave, Columbus 43214 | (614) 267-0267 |
| Fonetronics 3869 April Ln, Columbus 43227 | (614) 239-8989 |
| Headset Professionals 100 E Campus View Blvd # 250, Columbus 43235 | (614) 438-2660 |
| Link Processor 527 E Engler St, Columbus 43215 | (614) 464-1638 |
| Jacobs Telephone Contractors 703 Hadley Dr, Columbus 43228 | (614) 308-4583 |