| Business | Phone |
| David Biolchino Construction 113 Veronda Ave, Cotati 94931 | (707) 795-1144 |
| Hamilton Industries General 8986 Cypress Ave, Cotati 94931 | (707) 795-1090 |
| R G Gaither Ii Construction 183 Robin Ave, Cotati 94931 | (707) 792-7794 |
| Rich Sharp Construction Po Box 7, Cotati 94931 | (707) 664-1230 |