| Business | Phone |
| A & T Telecom Inc 3340 Fairmount Ave, San Diego 92105 | (619) 640-9970 |
| Beacon Telcom Supply 9630 Chesapeake Dr, San Diego 92123 | (858) 279-9157 |
| Emerson Network Power 7484 Margerum Ave, San Diego 92120 | (619) 857-2413 |
| Ethertronics Inc 9605 Scranton Rd, San Diego 92121 | (858) 550-3820 |
| Extant 12604 Torrey Bluff Dr # 388, San Diego 92130 | (619) 392-3939 |
| Second Chance Telecom 17655 Azucar Way, San Diego 92127 | (858) 485-7459 |
| Sansay 6450 Lusk Blvd, San Diego 92121 | (858) 678-0200 |
| Schneider Rucinski Ent 3344 N Mountain View Dr, San Diego 92116 | (619) 282-7989 |
| Qualcomm Inc 5775 Morehouse Dr, San Diego 92121 | (858) 587-1121 |
| Prominent Communications Inc 10675 Sorrento Valley Rd, San Diego 92121 | (858) 457-1800 |
| Continuous Computing Corp 9380 Carroll Park Dr, San Diego 92121 | (858) 882-8800 |
| Maxima Corp 10110 Sorrento Valley Rd, San Diego 92121 | (858) 643-1700 |
| Lucent Technologies 4370 La Jolla Village Dr # 400, San Diego 92122 | (858) 646-3005 |
| Keragis Corp 6222 Ferris Sq, San Diego 92121 | (858) 457-0913 |
| Konexx 5550 Oberlin Dr, San Diego 92121 | (858) 622-1400 |