| Michael Pabrua | Michael Pabrua | — | (925) 507 9929 | Other | Walnut Creek · Contra Costa County | — | — |
| Michael Quilty Painting | Michael Quilty Painting | mquilty@aol.com | (510) 525 8184 | Windows, patio, painters | El Sobrante · Contra Costa County | — | — |
| Michael Roth Construction Corporation | Michael James Roth | info@michaelrothconstruction.com | (925) 323 4482 | GC, remodel, ADU | Danville · Contra Costa County | — | — |
| Michael S Pecherer | Michael S Pecherer | — | (925) 518 7076 | GC, remodel, ADU | Orinda · Contra Costa County | — | — |
| Michael Sheets Tile Designs | Michael Sheets Tile Designs | — | (510) 517 2599 | Other | Richmond · Contra Costa County | — | — |
| Michael Smith Construction | Michael Clarke Smith | — | (925) 864 7625 | GC, remodel, ADU | Martinez · Contra Costa County | — | — |
| Michael T O'brien | Michael T O'brien | — | (925) 382 6877 | GC, remodel, ADU | Martinez · Contra Costa County | — | — |
| Michael Vasilas | Michael Vasilas | — | (510) 685 5415 | GC, remodel, ADU | Orinda · Contra Costa County | — | — |
| Michael Ver Brugge Construction INC | Michael William Ver Brugge | — | (925) 631 1055 | GC, remodel, ADU | Moraga · Contra Costa County | — | — |
| Michael Wright | Michael Wright | — | (510) 747 5510 | Windows, patio, painters | Antioch · Contra Costa County | — | — |
| Michael Yarom | Michael Yarom | — | (925) 353 8755 | GC, remodel, ADU | Concord · Contra Costa County | — | — |
| Michaelangelo Plumbing | Michael Anthony Jr Tenuto | — | (925) 451 1242 | Other | Discovery Bay · Contra Costa County | — | — |
| Micheal Dwyer Construction | Michael Allen Dwyer | — | (925) 914 1983 | GC, remodel, ADU | Concord · Contra Costa County | — | — |
| Micheal Rodarte Construction | Micheal Raymond Rodarte | — | (408) 401 2883 | GC, remodel, ADU | Bethel Island · Contra Costa County | — | — |
| Michel Von Papen Custom Woodwork | Michel Von Papen Custom Woodwork | — | (925) 639 9110 | Other | Walnut Creek · Contra Costa County | — | — |
| Michela Construction Corporation | Jerome Arnold Soba | — | (925) 200 0452 | GC, remodel, ADU | Danville · Contra Costa County | — | — |
| Micheles Painting | Micheles Painting | — | (925) 642 6995 | Windows, patio, painters | Antioch · Contra Costa County | — | — |
| Micheletti Electric Construction | Dino Michael Micheletti | — | (415) 740 2317 | Electricians | Walnut Creek · Contra Costa County | — | — |
| Michelle D Beason Construction | Michelle Dawn Beason | — | (925) 262 7366 | GC, remodel, ADU | Walnut Creek · Contra Costa County | — | — |
| Mickey L Benko | Mickey L Benko | — | (925) 382 0534 | Other | Antioch · Contra Costa County | — | — |
| Micor Electric INC | Michael Charles Soberanes | — | (925) 575 0002 | Electricians | Danville · Contra Costa County | — | — |
| Mid-peninsula Electric & Service INC | Edgar Rolando Ruiz-Pelaez | — | (650) 345 2700 | Electricians | Pinole · Contra Costa County | — | — |
| Midix Construction | Kang Wei | — | (510) 861 2785 | GC, remodel, ADU | San Ramon · Contra Costa County | — | — |
| Mighetto Electric | John Nickolas Mighetto | mighettoelectric@gmail.com | (510) 236 6829 | Electricians | Richmond · Contra Costa County | — | — |
| Miguel Garcia Construction | Garcia Miguel | — | (510) 915 1965 | GC, remodel, ADU | Richmond · Contra Costa County | — | — |
| Miguel Ormeno | Miguel Ormeno | — | (925) 708 1739 | Electricians | Concord · Contra Costa County | — | — |
| Miguel Painting | Miguel Painting | — | (408) 396 8474 | Windows, patio, painters | Richmond · Contra Costa County | — | — |
| Miguel's Professional Painting LLC | Miguel Angel Espinoza | — | (925) 550 3657 | Windows, patio, painters | Antioch · Contra Costa County | — | — |
| Mike Alan Brodsky | Mike Alan Brodsky | — | (831) 469 3514 | Other | Discovery Bay · Contra Costa County | — | — |
| Mike Mc Donald Construction | Michael Andrew Mc Donald | — | (925) 997 7520 | GC, remodel, ADU | Walnut Creek · Contra Costa County | — | — |
| Mike Mcallister INC DBA Mcallister Company | Michael James Mcallister | — | (925) 351 9106 | GC, remodel, ADU | Oakley · Contra Costa County | — | — |
| Mike Perreira Plumbing | Mike Perreira Plumbing | — | (925) 325 0855 | Other | Antioch · Contra Costa County | — | — |
| Mike Williams Plumbing | Mike Williams Plumbing | — | (925) 383 8089 | Other | Walnut Creek · Contra Costa County | — | — |
| Mike's Maintenance | Mike's Maintenance | — | (925) 890 1178 | GC, remodel, ADU | Clayton · Contra Costa County | — | — |
| Miles Construction | Jeffrey Stuart Miles | — | (510) 610 3294 | Electricians | San Pablo · Contra Costa County | — | — |
| Miles Martin General Engineering INC | Paul Thomas Morrill | — | (925) 550 2418 | Other | Brentwood · Contra Costa County | — | — |
| Millawns | Marco Antonio Millan Carranza | — | (510) 680 8279 | GC, remodel, ADU | Pittsburg · Contra Costa County | — | — |
| Miller Attics | Alon Dvoskin | quikad.creative@gmail.com | (510) 224 0277 | Other | Walnut Creek · Contra Costa County | — | — |
| Miller Construction | Walter Noel Miller | — | (925) 288 0245 | GC, remodel, ADU | Concord · Contra Costa County | — | — |
| Millhouse LLC | James Aaron Johnson | — | (925) 876 8383 | GC, remodel, ADU | Brentwood · Contra Costa County | — | — |