| Business | Phone |
| Ati-American Telesource Inc 5900 Hollis St # H, Emeryville 94608 | (510) 428-1111 |
| Cox Communications 2200 Powell St # 1035, Emeryville 94608 | (510) 923-6220 |
| G 2 Solutions 1475 Powell St # 202, Emeryville 94608 | (510) 985-9600 |
| Infotone Communications Corp 4053 Harlan St # 112, Emeryville 94608 | (510) 595-3876 |
| Inter-Tel Technologies 6390 Christie Ave, Emeryville 94608 | (510) 450-9777 |
| Mall Network Svc 1475 Powell St, Emeryville 94608 | (510) 297-2100 |
| Peacock Associates 5855 Doyle St # 108, Emeryville 94608 | (510) 420-5701 |