| Business | Phone |
| Acceris Communications 1001 Brinton Rd, Pittsburgh 15221 | (412) 244-6600 |
| Advanced Communications 2987 Babcock Blvd, Pittsburgh 15237 | (412) 931-4408 |
| Arnold Printed Communications 4127 Brownsville Rd, Pittsburgh 15227 | (412) 882-9525 |
| Bck Communications 1205 Parkway View Dr, Pittsburgh 15205 | (412) 747-7580 |
| Richard M Berlin 913 N Euclid Ave, Pittsburgh 15206 | (412) 361-2133 |
| Bfg Communications 313 E Carson St, Pittsburgh 15219 | (412) 488-7224 |
| Bfg Communications 54 26th St, Pittsburgh 15222 | (412) 281-3626 |
| Broadwing Communications 501 Grant St # 301, Pittsburgh 15219 | (412) 255-3738 |
| Carol Robinson Communications 6507 Wilkins Ave # 201, Pittsburgh 15217 | (412) 661-1202 |
| Carolyn E Kerr 152 Parkedge Rd, Pittsburgh 15220 | (412) 429-8111 |
| Cellphone Communications 5880 Forbes Ave, Pittsburgh 15217 | (412) 421-9363 |
| Communication Products 651 Holiday Dr, Pittsburgh 15220 | (412) 928-3280 |
| Communications Cypress 603 Two Gateway Center, Pittsburgh 15222 | (412) 392-2320 |
| Comtel Communications 1900 Washington Rd, Pittsburgh 15241 | (412) 851-1948 |
| Contact One Communications 1627 Penn Ave, Pittsburgh 15222 | (412) 697-0294 |
| Cooperative Communications 1345 Pinewood Dr, Pittsburgh 15243 | (412) 276-4800 |
| Corporate Communications Rsrc 1237 Resaca Pl, Pittsburgh 15212 | (412) 322-9977 |
| Cosmos Communications 227 Chickasaw Ave, Pittsburgh 15237 | (412) 630-8690 |
| Darkins Communications 1801 Centre Ave, Pittsburgh 15219 | (412) 281-5303 |
| Dean Davis Communications 1400 Breed St, Pittsburgh 15203 | (412) 325-7020 |
| Dsl Communications Inc 1901 Penn Ave, Pittsburgh 15222 | (412) 765-3070 |
| Dynamic Communications 307 S Dithridge St, Pittsburgh 15213 | (412) 687-8050 |
| Extreme Communications/Network 508 Invicta Dr, Pittsburgh 15235 | (412) 798-9527 |
| Family Communications Inc 4802 5th Ave, Pittsburgh 15213 | (412) 687-2990 |
| Gateway Communications Lp 1905 Blvd Of The Allies, Pittsburgh 15219 | (412) 325-4100 |
| Intelligent Electronic Systems 108 Merchant Ln, Pittsburgh 15205 | (412) 788-8006 |
| Intermedia Communications 1120 Roosevelt Rd, Pittsburgh 15237 | (412) 364-8104 |
| Mark Miller Communications 125 Avenue F, Pittsburgh 15221 | (412) 646-1033 |
| North Point Communications 651 Holiday Dr, Pittsburgh 15220 | (412) 928-4695 |
| Oracle Communications 3005 W Liberty Ave, Pittsburgh 15216 | (412) 531-5515 |
| Roberts Communications 12 Federal Dr, Pittsburgh 15235 | (412) 535-5000 |
| Ronco Communications & Elect 2306 Salem Dr, Pittsburgh 15237 | (412) 367-1716 |
| Simpson Communications 211 Elrose Dr, Pittsburgh 15237 | (412) 761-9598 |
| Taylor Perles Communications 305 Mount Lebanon Blvd # 205, Pittsburgh 15234 | (412) 531-2010 |
| West Communications Arthur Dr, Pittsburgh 15219 | (412) 630-9710 |
| Women In Communications 345 4th Ave, Pittsburgh 15222 | (412) 594-4889 |