| Business | Phone |
| Ben Tel Communications 5540 Roche Dr, Columbus 43229 | (614) 267-1800 |
| Signal Communications 6836 Caine Rd, Columbus 43235 | (614) 761-9440 |
| Sota Technologies Inc Columbus 43215 | (614) 228-5652 |
| Main Communications Columbus 43201 | (614) 271-5264 |
| M & P Communications 128 W Longview Ave, Columbus 43202 | (614) 784-8900 |