| Business | Phone |
| Frontier Network Systems Inc 412 Linden Ave, Rochester 14625 | (585) 899-4400 |
| Genesis Communications 45 Cedarfield Commons, Rochester 14612 | (585) 225-1829 |
| Hilltop Technologies 175 Greenaway Rd, Rochester 14610 | (585) 381-1981 |
| Install-A-Phone Inc 233 Lagrange Ave, Rochester 14613 | (585) 227-6780 |
| Kgp Telecommunication Inc 3635 Buffalo Rd # 1, Rochester 14624 | (585) 594-9440 |
| Matrix Communications Group 10 Vantage Point Dr # 6, Rochester 14624 | (585) 352-9777 |
| Pics Telecom 1920 Lyell Ave, Rochester 14606 | (585) 295-2000 |
| Relcomm Inc 250 Cumberland St, Rochester 14605 | (585) 546-8888 |
| Schaller Group Ltd 295 Mount Read Blvd # 5, Rochester 14611 | (585) 235-8800 |
| Smart Communications Inc 1313 Chili Ave, Rochester 14624 | (585) 426-5520 |
| T R Svc Inc 2800 E Henrietta Rd, Rochester 14623 | (585) 533-0022 |
| Technicom Corp 2024 W Henrietta Rd # 3j, Rochester 14623 | (585) 272-1410 |
| Tricom Communications 1050 Dewey Ave, Rochester 14613 | (585) 647-2519 |