| Brett Moody | Brett Moody | — | (661) 343 1540 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Brett Robinson | Brett Robinson | info@brett-robinson.com | (415) 209 8021 | Other | Petaluma · Sonoma County | — | — |
| Brett Williams | Brett Williams | — | (707) 479 3116 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Brian C Foster | Brian C Foster | brian@briancfoster.com | (415) 302 8160 | GC, remodel, ADU | Sebastopol · Sonoma County | — | — |
| Brian F Taylor | Brian F Taylor | — | (707) 888 3068 | GC, remodel, ADU | Kenwood · Sonoma County | — | — |
| Brian Gilbert Construction INC | Brian David Gilbert | brian@briangilbertconstruction.com | (707) 479 7110 | GC, remodel, ADU | Sebastopol · Sonoma County | — | — |
| Brian Mcgee Construction INC | Brian Michael Mcgee | — | (415) 233 2792 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Brian Moore Construction | Brian John Moore | — | (415) 225 6637 | GC, remodel, ADU | Glen Ellen · Sonoma County | — | — |
| Brian Robert St Peter | Brian Robert St Peter | — | (707) 235 9316 | GC, remodel, ADU | Windsor · Sonoma County | — | — |
| Brian Soward Custom Painting | Brian Soward Custom Painting | — | (707) 292 0110 | Windows, patio, painters | Geyserville · Sonoma County | — | — |
| Brian Stubblefield Construction | Brian Joseph Stubblefield | — | (707) 331 3269 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Brian Tolbert | Brian Tolbert | — | (707) 477 2279 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Brian Victor Construction Co | Brian Donald Victor | — | (707) 484 2876 | GC, remodel, ADU | Penngrove · Sonoma County | — | — |
| Brian Wilson Construction | Brian Anthony Wilson | — | (707) 206 8287 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Brian's Fine Finishes | Brian's Fine Finishes | — | (707) 481 5945 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Briceno Landscape | Briceno Landscape | bricenolandscape@comcast.net | (415) 577-4788 | Windows, patio, painters | Petaluma · Sonoma County | — | — |
| Bridges Construction | Bridges Construction | — | (707) 996-4133 | Restoration | Sonoma · Sonoma County | — | — |
| Bright Right LLC | Richard Edward Edwards | — | (707) 791 5552 | Electricians | Rohnert Park · Sonoma County | — | — |
| Bright View Builder | Bright View Builder | — | (707) 787 7499 | GC, remodel, ADU | Penngrove · Sonoma County | — | — |
| Brightfield Landscape INC | Francisco Javier Uriostique Flores | — | (707) 393 7279 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Brimer Custom Millwork | Sean Steven Brimer | — | (415) 819 7961 | Other | Petaluma · Sonoma County | — | — |
| Broderick General Engineering INC | Jeffrey Allen Carlson | — | (707) 996 7809 | Other | Sonoma · Sonoma County | — | — |
| Brodie Castle Landcare | Brodie Castle Landcare | brodiecastlelandcare@gmail.com | (707) 331 9679 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Brodt Construction | John Robert Brodt | — | (707) 823 0859 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Bronson Construction | Marshall Taylor Bronson | — | (707) 217 9154 | GC, remodel, ADU | Windsor · Sonoma County | — | — |
| Brothers Collins Woodworking INC | Dennis Murrin Collins | — | (707) 794 9336 | GC, remodel, ADU | Cotati · Sonoma County | — | — |
| Brothers Landscaping INC | Yin Francisco Magana Cardenas | — | (707) 782 8811 | Windows, patio, painters | Petaluma · Sonoma County | — | — |
| Brown Electrical Services INC | Matthew David Brown | — | (707) 396 2070 | Electricians | Santa Rosa · Sonoma County | — | — |
| Brown's Automatic Gates | Brown's Automatic Gates | — | (707) 681 4693 | Electricians | Kenwood · Sonoma County | — | — |
| Brown's Logging And Tree Service | Noah Kelly Brown | — | (707) 849 3533 | Tree | Cazadero · Sonoma County | — | — |
| Brownstein Construction INC | Clark Eugene Brownstein | clark@brownsteinconstruction.com | (707) 655 4646 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Bruce A Lee | Bruce A Lee | — | (707) 484 6790 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Bruce H Dichter | Bruce H Dichter | — | (707) 322 3302 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Brunamonte Construction | Christopher Frank Brunamonte | — | (707) 694 1648 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Brunsing Associates INC | Erik Eaton Olsborg | — | (707) 838 3027 | Other | Santa Rosa · Sonoma County | — | — |
| Brush Creek Plumbing | Brush Creek Plumbing | — | (707) 931 9481 | Other | Santa Rosa · Sonoma County | — | — |
| Bryan H. Musco | Bryan H. Musco | — | (707) 291 2345 | Electricians | Santa Rosa · Sonoma County | — | — |
| Bryan Masterson Enterprises | Joseph Bryan Masterson | — | (707) 971 7686 | HVAC | Petaluma · Sonoma County | — | — |
| Bucio General Construction | Juan Ramon Bucio Bautista | — | (707) 495 8186 | GC, remodel, ADU | Sonoma · Sonoma County | — | — |
| Buckley Construction | Jeffrey Garrett Buckley | — | (707) 477 0188 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |