| Business | Phone |
| Advanced Communications Tech 19200 Von Karman Ave # 500, Irvine 92612 | (949) 622-5566 |
| Accqpoint Comm 2737 Campus Dr, Irvine 92612 | (949) 752-6605 |
| American Media Communications 18 Technology Dr, Irvine 92618 | (949) 788-3910 |
| Asiana Communications 2 Flagstone # 616, Irvine 92606 | (949) 679-8600 |
| Bcc Communications 15339 Barranca Pkwy, Irvine 92618 | (949) 753-9077 |
| Mpower Communications-Irvine 1200 Main St # E, Irvine 92614 | (949) 486-1000 |