| Luna General Construction | Christopher Joseph Ii Luna | — | (805) 556 5603 | GC, remodel, ADU | Chico · Butte County | — | — |
| M & M Fence Company | Martin Edward White | — | (530) 342 1767 | Other | Chico · Butte County | — | — |
| M & M Landscape & Maintenance | Carmona Gutierrez Sergio | — | (530) 682 3871 | Windows, patio, painters | Gridley · Butte County | — | — |
| M A Magneson | M A Magneson | — | (530) 288 3715 | Other | Oroville · Butte County | — | — |
| M And M Developments | M And M Developments | — | (530) 870 1019 | GC, remodel, ADU | Biggs · Butte County | — | — |
| M B M Construction | Marshall Buck Moody | — | (530) 966 4874 | GC, remodel, ADU | Chico · Butte County | — | — |
| M Douglas Construction Incorporated | Carol Lynn Flaner | — | (925) 250 5678 | GC, remodel, ADU | Chico · Butte County | — | — |
| M E Nimz Construction | Michael Erick Nimz | — | (530) 532 1443 | GC, remodel, ADU | Oroville · Butte County | — | — |
| M G M Construction | Michael David Gordon | — | (530) 570 0863 | GC, remodel, ADU | Magalia · Butte County | — | — |
| M H Electric | Matt Joseph Hill | — | (530) 566 2587 | Electricians | Oroville · Butte County | — | — |
| M H N Cement Co | Martin Almer Murphy | — | (530) 521 5056 | GC, remodel, ADU | Chico · Butte County | — | — |
| M J Shelton General Engineering INC | Matthew John Shelton | — | (530) 895 8620 | Other | Chico · Butte County | — | — |
| M Roethler General Engineering INC | Mauny Brust Roethler | — | (530) 809 6946 | GC, remodel, ADU | Paradise · Butte County | — | — |
| M T B Construction | Marcus Dewayne Bledsoe | — | (530) 403 0796 | GC, remodel, ADU | Oroville · Butte County | — | — |
| M T L Contracting | Jamie Brian Turner | — | (530) 570 2448 | Other | Chico · Butte County | — | — |
| M V Masonry | M V Masonry | marisa.mvmasonry@gmail.com | (707) 480-7896 | Other | Chico · Butte County | — | — |
| M-alex Painting | M-alex Painting | — | (530) 520 7105 | Windows, patio, painters | Oroville · Butte County | — | — |
| Maas Construction | Curtis Henry Maas | contact@maas-construction.com | (530) 518 9529 | GC, remodel, ADU | Chico · Butte County | — | — |
| Mac Michael Electric | Gregg Harrison Mac Michael | — | (530) 899 0454 | Electricians | Chico · Butte County | — | — |
| Mac Plumbing | Mac Plumbing | — | (530) 966 0466 | Other | Paradise · Butte County | — | — |
| Mac Stone Countertops | Mac Stone Countertops | — | (530) 518 7424 | Other | Chico · Butte County | — | — |
| Macneill Development INC | Sam Christopher Macneill | — | (530) 965 5183 | GC, remodel, ADU | Chico · Butte County | — | — |
| Mag Construction LLC | Michael Anthony Guarino | — | (530) 570 6576 | GC, remodel, ADU | Magalia · Butte County | — | — |
| Magee Construction | Shawn Richard Magee | — | (530) 321 8139 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Magneson Tractor Service INC | Levi Stuts Magneson | magnesontractorinc@gmail.com | (530) 961 3171 | Tree | Paradise · Butte County | — | — |
| Maintenance Plus | Cindy Louise Chalmers | — | (530) 893 1051 | GC, remodel, ADU | Chico · Butte County | — | — |
| Majestic Home And Landworks | Majestic Home And Landworks | — | (530) 990 3444 | Other | Oroville · Butte County | — | — |
| Mallinson's Tile | Mallinson's Tile | — | (530) 712 5313 | Other | Oroville · Butte County | — | — |
| Mallory Construction | Bryan Wayne Mallory | — | (530) 680 3769 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Maravilla Fencing Construction | Gabriel Maravilla | — | (530) 990 2839 | Other | Oroville · Butte County | — | — |
| Marc Blankinship Construction | Marc James Blankinship | — | (530) 591 3252 | GC, remodel, ADU | Chico · Butte County | — | — |
| Marikas Construction | Shaun Damon Marikas | — | (530) 990 0059 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Mark A Hoffman Construction | Mark Alphonse Hoffman | — | (530) 520 4323 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Mark Brown Construction | Mark Desmond Brown | — | (530) 518 5214 | GC, remodel, ADU | Chico · Butte County | — | — |
| Mark Markut Roofing | Mark Anthony Markut | — | (530) 589 1444 | Other roofers | Oroville · Butte County | — | — |
| Mark Taylor Construction | Mark Allen Taylor Jr | — | (530) 403 3358 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Mark-a-lot | Ryan Mathew Mckinney | — | (530) 891 1983 | Other | Chico · Butte County | — | — |
| Marshall Construction | James Sadrian Marshall | — | (530) 518 9437 | GC, remodel, ADU | Chico · Butte County | — | — |
| Martin Construction | John Thomas Martin | — | (530) 680 6423 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Mason Construction | Mason Scott Clark | — | (530) 321 2444 | GC, remodel, ADU | Paradise · Butte County | — | — |