| Business | Phone |
| Adolfo Mendoza Concrete Sonoma 95476 | (707) 938-9906 |
| Jerry Ellis Sonoma 95476 | (707) 996-4187 |
| Foundations By Massa Sonoma 95476 | (707) 996-4361 |
| Harry Meglen Concrete Constr 19484 8th St E, Sonoma 95476 | (707) 938-3336 |
| Richards Concrete Constr Sonoma 95476 | (707) 939-0118 |
| Ron Church Concrete Constr Po Box 345, Sonoma 95476 | (707) 938-0133 |