| Business | Phone |
| Air Tell Inc 2497 Harbor Blvd, Ventura 93001 | (805) 658-8284 |
| Applied Telcomm Corp 4219 Transport St, Ventura 93003 | (805) 654-0004 |
| Applied Telcomm Corp 4253 Transport St, Ventura 93003 | (805) 654-0004 |
| Communications Workers-Amrc 1273 Coventry Ave, Ventura 93004 | (805) 659-5004 |
| Everything Communicates 1841 Knoll Dr, Ventura 93003 | (805) 644-2224 |
| Geotel Communication Svc Inc 1068 E Main St, Ventura 93001 | (805) 652-0951 |
| Kr Communications 4587 Telephone Rd, Ventura 93003 | (805) 650-3075 |
| Western Communication Co Red Mountain, Ventura 93001 | (805) 652-1258 |
| Wip Communication 1860 Eastman Ave, Ventura 93003 | (805) 642-1400 |
| Trilogynet Communications 4840 Market St, Ventura 93003 | (805) 644-7555 |
| Vega Communications 2465 Yuma Ct, Ventura 93001 | (805) 653-1358 |