| Business | Phone |
| Digital Impact Inc 177 Bovet Rd, San Mateo 94402 | (650) 356-3400 |
| Net Suite Inc 2955 Campus Dr # 100, San Mateo 94403 | (650) 627-1000 |
| Nextag Inc 1300 S El Camino Real, San Mateo 94402 | (650) 645-4700 |
| Vip Tone Inc 1710 S Amphlett Blvd, San Mateo 94402 | (650) 578-6500 |