| Business | Phone |
| Digital Foundry Inc 1707 Tiburon Blvd, Belvedere Tiburon 94920 | (415) 789-1600 |
| Ambassador Technologies 4660 Paradise Dr, Belvedere Tiburon 94920 | (415) 435-6261 |
| Picturesnow Com 9 Stevens Ct, Belvedere Tiburon 94920 | (415) 435-1076 |
| Tonerico Telecom Partners Po Box 144, Belvedere Tiburon 94920 | (415) 806-5676 |