| Business | Phone |
| A-Able-1/Answer America Pittsburgh 15202 | (412) 761-9012 |
| Allegheny Answering Svc 539 Rochester Rd, Pittsburgh 15237 | (412) 369-4700 |
| Bob Phillips Communication Svc Pittsburgh 15243 | (412) 276-8688 |
| Cathedral Answering Svc 615 Washington Rd # 306, Pittsburgh 15228 | (412) 563-1400 |
| Mobilecomm 501 Mansfield Ave, Pittsburgh 15205 | (412) 921-2233 |
| North Hills Answering Svc 992 Perry Hwy, Pittsburgh 15237 | (724) 935-3737 |
| Penn Center East 201 Penn Center Blvd # 400, Pittsburgh 15235 | (412) 825-5158 |
| Pittsburgh Telephone Answering 3140 Pioneer Ave, Pittsburgh 15226 | (412) 531-1100 |
| Teleplex Inc 2848 W Liberty Ave, Pittsburgh 15216 | (412) 341-8440 |
| Professional Answering Svc 345 4th Ave, Pittsburgh 15222 | (412) 884-0700 |
| Professional Communications 1485 Crane Ave, Pittsburgh 15220 | (412) 341-9030 |