| Business | Phone |
| Adf Research 1456 Lincoln Ave, San Rafael 94901 | (415) 459-1115 |
| Essex Marketing 73 Paul Dr, San Rafael 94903 | (415) 446-7600 |
| Friedman Marketing-California 5820 Northgate Mall, San Rafael 94903 | (415) 472-5394 |
| Market Metrix 528 4th St, San Rafael 94901 | (415) 721-1300 |
| Verified Audit Circulation 517 Jacoby St # A, San Rafael 94901 | (415) 457-3868 |
| Research Insights San Rafael 94903 | (415) 464-0983 |
| Touch Point Metrics 3100 Kerner Blvd # C1, San Rafael 94901 | (415) 258-8526 |