| Business | Phone |
| Guaranty Residential Lending 822 Broadway, Sonoma 95476 | (707) 938-1120 |
| Investors Trust Mortgage Corp 531 1st St E, Sonoma 95476 | (707) 996-4114 |
| K & K Financial 414 1st St E, Sonoma 95476 | (707) 996-4555 |
| Multisource Mortgage 811 W Napa St, Sonoma 95476 | (707) 938-2627 |
| Preferred Mortgage 546 Broadway, Sonoma 95476 | (707) 931-7100 |
| Realty Loans 214 Avenida Barbera, Sonoma 95476 | (707) 935-8171 |
| Spectrum Financial 620 Broadway, Sonoma 95476 | (707) 939-3535 |
| Triton Funding Group Inc 827 Broadway, Sonoma 95476 | (707) 935-7241 |
| William Spencer Financial 317 1st St W, Sonoma 95476 | (707) 996-5353 |
| Wine Country Mortgage Inc 11 E Napa St, Sonoma 95476 | (707) 939-4940 |
| Wine Country Mortgages Inc 535 W Napa St, Sonoma 95476 | (707) 252-2946 |