| Business | Phone |
| Business Designs Assoc Inc 136 Scenic Ave, Piedmont 94611 | (510) 658-4088 |
| Cgr Management Consultants 407 Scenic Ave, Piedmont 94611 | (510) 654-2738 |
| Home Network Specialists 141 Requa Rd, Piedmont 94611 | (510) 251-1414 |
| La Salle Venture Advisers 140 La Salle Ave, Piedmont 94610 | (510) 251-1758 |