| Mg Painting | Mg Painting | — | (707) 260 5931 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Mib Heating & Air INC | Anthony Rodriguez | — | (530) 514 0663 | HVAC | Woodland · Yolo County | — | — |
| Michael E Robinson Const | Michael E Robinson Const | — | (530) 219 2522 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Michael Haney | Michael Haney | — | (916) 214 5907 | GC, remodel, ADU | Winters · Yolo County | — | — |
| Michael J Soto Flooring | Michael J Soto Flooring | — | (916) 768 4038 | Other | Woodland · Yolo County | — | — |
| Michael Olmo Custom Doors-ocd | Michael Olmo Custom Doors-ocd | — | (530) 908 2285 | Other | Woodland · Yolo County | — | — |
| Mick Martin Construction | Mick Lewis Martin | — | (530) 574 5888 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Mielenz Construction | Matthew Henry Mielenz | — | (530) 601 1545 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Mike E Campbell Construction INC | Michael Edward Campbell | — | (530) 753 2350 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Mike Rabaino Roofing INC | Lisa Marie Miller | — | (530) 668 0181 | Other roofers | Woodland · Yolo County | — | — |
| Mike Sanford | Mike Sanford | — | (530) 908 6966 | GC, remodel, ADU | Esparto · Yolo County | — | — |
| Mike Thomas Roofing | Michael Jonathan Thomas | — | (530) 908 1923 | Other roofers | Woodland · Yolo County | — | — |
| Miller Floorcovering | Miller Floorcovering | — | (707) 396 0964 | Other | Winters · Yolo County | — | — |
| Miller Flooring | Miller Flooring | — | (707) 580 8542 | Other | Winters · Yolo County | — | — |
| Mills Tile & Granite | Mills Tile & Granite | — | (916) 385 3618 | Other | Woodland · Yolo County | — | — |
| Mitch Bertero Construction | Mitchell Lane Bertero | — | (916) 955 1068 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Mjb General Contracting | Mark Judson Boubelik | — | (209) 629 6946 | GC, remodel, ADU | Knights Landing · Yolo County | — | — |
| Modern Surfaces | Modern Surfaces | — | (916) 475 3080 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Monley Cronin INC DBA Cm Concrete | Richard Paul Cronin | — | (530) 666 4139 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| Monley Hamlin - Descor Jv | Hamlin INC Monley | — | (530) 750 1930 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Monley Hamlin INC | Colin Patrick Monley | cmonley@monleyhamlin.com | (530) 750 1930 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Montana Landscaping | Montana Landscaping | — | (916) 281 1519 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Montenegro Construction | Manuel Pena Montenegro | — | (530) 304 8842 | GC, remodel, ADU | Winters · Yolo County | — | — |
| Monticello Hardwood Flooring | Monticello Hardwood Flooring | — | (530) 795 9590 | Other | Winters · Yolo County | — | — |
| Monticello Tree Service INC | Hernandez Mandujano Nestor | — | (530) 574 7270 | Tree | Winters · Yolo County | — | — |
| Montoy's Landscaping INC | Angel Octavio Montoy | info@montoyslandscaping.com | (530) 867 2332 | Windows, patio, painters | Woodland · Yolo County | — | — |
| Montoya Heating & Air | Montoya Heating & Air | — | (916) 335 3036 | HVAC | Woodland · Yolo County | — | — |
| Morse Remodeling INC | Martin Allan Morse | — | (530) 758 5321 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Mos Construction INC | Nancy Alvarado | — | (530) 979 0297 | GC, remodel, ADU | Davis · Yolo County | — | — |
| Mr Diaz Landscape Construction | Jose Luis Diaz | — | (530) 908 0357 | Windows, patio, painters | Winters · Yolo County | — | — |
| Munoz Garage Doors And Gates | Raymundo Munoz | — | (530) 933 1274 | Other | Woodland · Yolo County | — | — |
| Myco Scaffold Company | Michael Henry Bustillos | — | (916) 903 2558 | Other | West Sacramento · Yolo County | — | — |
| Myers Construction | Brandon Lee Myers | — | (530) 400 7456 | GC, remodel, ADU | Winters · Yolo County | — | — |
| N C E C Plumbing Corporation | Nestor Alexis Casas Ramirez | — | (530) 867 2537 | Other | Knights Landing · Yolo County | — | — |
| N C Foliage & Landscaping INC | Nicolas Fuentes Jimenez | ncfoliagelandscape@yahoo.com | (530) 979-0107 | Windows, patio, painters | Winters · Yolo County | — | — |
| Nana Advertising INC DBA Nana Garage Door | Eldad Mizrahi | — | (916) 280 1696 | Other | West Sacramento · Yolo County | — | — |
| Nate's H20 Fix & Repair Plumbing INC | Nathaniel Camille Macedon | — | (916) 997 1354 | Other | West Sacramento · Yolo County | — | — |
| Nc Equipment Solutions INC | Alfred Anthony Barbagelata | — | (916) 372 7700 | HVAC | West Sacramento · Yolo County | — | — |
| Nd Cabinets | Latortsev Nikolay | — | (916) 717 3353 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| Neal Thayer LLC | Neal Robert Thayer | — | (530) 902 2184 | GC, remodel, ADU | Davis · Yolo County | — | — |