| Business | Phone |
| Audio Advance 2901 Main St, Vancouver 98663 | (360) 993-2121 |
| Fidelity Sound 406 Nw 68th St, Vancouver 98665 | (360) 750-7908 |
| In-Tech 7831 Ne Highway 99, Vancouver 98665 | (360) 571-0894 |
| Troxell Communications 17523 Se 16th Cir, Vancouver 98683 | (360) 253-9439 |