| Moises L Landscape | Moises L Landscape | moisesllandscape@gmail.com | (707) 280 0754 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Molina Painting INC | Molina Olvera Omar | — | (707) 536 7806 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Moll Construction LLC | Casey Michael Moll | — | (707) 931 8999 | GC, remodel, ADU | Vineburg · Sonoma County | — | — |
| Monaco Mechanical | Monaco Mechanical | — | (707) 200 8067 | HVAC | Santa Rosa · Sonoma County | — | — |
| Monarch | Scott Wesley Rafael | support@monarch.com | (707) 477 2396 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Moncayo Construction | Michael Gilbert Moncayo | — | (415) 548 0626 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Monkey Wrench Plumbing | Monkey Wrench Plumbing | — | (707) 538 7932 | Other | Santa Rosa · Sonoma County | — | — |
| Monks Construction | Steven Christopher Seegert | — | (707) 548 6686 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Montanez Construction | Jorge Gonzalez Motanez | — | (707) 321 6003 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Monument Home Services INC | Lawrence Mitchell Jenks | — | (707) 545 2326 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Monzon Wood Creations | Monzon Wood Creations | — | (707) 478 2957 | GC, remodel, ADU | Windsor · Sonoma County | — | — |
| Moon Mountain Construction INC | Victor Manuel Jr Grajeda | — | (707) 992 5020 | Electricians | Sonoma · Sonoma County | — | — |
| Moondance Painting | Steven Gene Stiles | info@moondancepainting.com | (925) 383 4537 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Mooney Construction | Michael Albert Mooney | interested@domainmarket.com | (415) 531 9283 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Moonlight Landscapes | Moonlight Landscapes | — | (707) 953 8915 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Moore Construction | Matthew Frank Moore | — | (707) 217 3391 | GC, remodel, ADU | Bodega Bay · Sonoma County | — | — |
| Moore Home Services | Jerry Scott Bell | — | (707) 243 2250 | HVAC | Santa Rosa · Sonoma County | — | — |
| Moore Power Electric | Jesse Michael Moore | — | (707) 591 3189 | Electricians | Petaluma · Sonoma County | — | — |
| Moore's Custom Cabinets | Moore's Custom Cabinets | — | (707) 321 7044 | Other | Windsor · Sonoma County | — | — |
| Moorekraft Builders INC | Ton Christopher Moore | — | (415) 306 1241 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Morelos Drywall INC | Siergio Jr Morelos | — | (707) 978 9191 | Other | Healdsburg · Sonoma County | — | — |
| Moreno Development | Moreno Development | — | (360) 628 1401 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Morerock Refrigeration Services INC | Timothy Paul Weekley | — | (707) 494 8876 | HVAC | Santa Rosa · Sonoma County | — | — |
| Morga Construction | Carlos Gerardo Morga Lopez | — | (707) 331 8037 | GC, remodel, ADU | Rohnert Park · Sonoma County | — | — |
| Morgan C Winslow A Partnership | Morgan Charles Winslow | — | (707) 332 1326 | GC, remodel, ADU | Sebastopol · Sonoma County | — | — |
| Morgan Painting & Staining | Miguel Angel Luevano Valdez | — | (707) 867 5178 | Windows, patio, painters | Forestville · Sonoma County | — | — |
| Morita Construction Co | Russell Norio Morita | — | (707) 795 9545 | GC, remodel, ADU | Penngrove · Sonoma County | — | — |
| Morrell Plumbing | Morrell Plumbing | — | (707) 331 4613 | Other | Guerneville · Sonoma County | — | — |
| Morris Construction | Bradford Allen Morris | — | (707) 778 8233 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Morris Construction | Charles Burton Morris | — | (415) 264 9174 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Morris Electric | Carlen Bradley Morris | — | (707) 481 1731 | Electricians | Santa Rosa · Sonoma County | — | — |
| Morris Heating | Morris Heating | — | (707) 542 7769 | HVAC | Fulton · Sonoma County | — | — |
| Morris Michaels Paint & Decorating | Morris Michaels Paint & Decorating | — | (707) 939-1602 | Windows, patio, painters | Sonoma · Sonoma County | — | — |
| Morse Painting | Morse Painting | — | (707) 799 5823 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| Morton Construction | Harold Lee Ii Morton | interested@domainmarket.com | (707) 975 4252 | GC, remodel, ADU | Healdsburg · Sonoma County | — | — |
| Morton Smith Electrical INC | Randy Christopher Smith | — | (707) 542 2112 | Electricians | Santa Rosa · Sonoma County | — | — |
| Moshe Shafrir Mobile Workshop | Moshe Shafrir Mobile Workshop | — | (707) 433 4447 | GC, remodel, ADU | Healdsburg · Sonoma County | — | — |
| Moskowite Floor Coverings | Moskowite Floor Coverings | — | (707) 529 0599 | Other | Santa Rosa · Sonoma County | — | — |
| Mota Contracting INC | Agustin Mota | maria@motacontracting.com | (707) 849 2800 | GC, remodel, ADU | Healdsburg · Sonoma County | — | — |
| Motie Stone & Tile | Motie Stone & Tile | — | (707) 974 4634 | Other | Santa Rosa · Sonoma County | — | — |