| Business | Phone |
| Coast Business Communications 3480 Arden Rd, Hayward 94545 | (510) 264-1331 |
| Integrated Media Systems 3777 Depot Rd, Hayward 94545 | (510) 785-8606 |
| Linstall 3423 Investment Blvd, Hayward 94545 | (510) 782-1100 |
| Soundtek Music 2535 W Winton Ave # 4m, Hayward 94545 | (510) 887-2100 |