| Business | Phone |
| Altient 703 Palomar Airport Rd, Carlsbad 92009 | (760) 476-3500 |
| Altient 703 Palomar Airport Rd, Carlsbad 92011 | (760) 476-3500 |
| Softeach Inc 5650 El Camino Real # 160, Carlsbad 92008 | (858) 720-9400 |
| Net Tech 1902 Wright Pl, Carlsbad 92008 | (760) 918-5630 |
| Ip3 Networks Inc 2564 State St, Carlsbad 92008 | (760) 729-8589 |