| Miller Enterprises | Robert Alexander Miller | — | (530) 308 2141 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Miller Heating & Air Conditioning | Miller Heating & Air Conditioning | — | (916) 799 8692 | HVAC | Lincoln · Placer County | — | — |
| Miller Home Care Flooring | Miller Home Care Flooring | — | (530) 448 6278 | Other | Tahoe City · Placer County | — | — |
| Miller's Heating Air Conditioning & Sheet Metal INC | Anthony Phillip Albertazzi | — | (530) 885 6172 | HVAC | Auburn · Placer County | — | — |
| Millet Builders INC | David Brian Millet | — | (530) 581 1234 | GC, remodel, ADU | Tahoe City · Placer County | — | — |
| Millsaw Construction INC | Mikhail Nikolayovich Lebich | — | (916) 221 8970 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Millwood Construction LLC | Seth Allan Millington | — | (530) 300 5217 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Mindru Electric | Mindru Ion | — | (408) 221 6784 | Electricians | Roseville · Placer County | — | — |
| Minerva HVAC Services | Todd Allan Odell | — | (916) 878 7702 | HVAC | Roseville · Placer County | — | — |
| Mirowski Electric | Steven Joseph Mirowski | — | (916) 217 9393 | Electricians | Lincoln · Placer County | — | — |
| Mis Construction INC | Mohamad Ibrahim Shahin | — | (916) 256 5180 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Mission Painting INC | Juan Luis Montejano | — | (916) 849 4352 | Windows, patio, painters | Rocklin · Placer County | — | — |
| Mister Paint | Mister Paint | — | (510) 693 9447 | Windows, patio, painters | Roseville · Placer County | — | — |
| Mister Sparky Electric | Michael Stephen Baumgartner | — | (916) 229 6335 | Electricians | Roseville · Placer County | — | — |
| Mitch Higgins Concrete | Mitch Higgins Concrete | — | (916) 871 0092 | Other | Penryn · Placer County | — | — |
| Mitchell Seal Coating | Mitchell Seal Coating | — | (530) 581 3703 | Other | Kings Beach · Placer County | — | — |
| Mize Guys Heating & Cooling | Ronald Jay Mize | — | (530) 885 3333 | HVAC | Auburn · Placer County | — | — |
| Mjb Homes INC DBA Mjb Construction | Michael Joseph Bouchard | — | (916) 624 9725 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Mjs Remodeling | Pislar Sergey | — | (916) 259 3404 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Mks General Contracting INC | Luis Henrique Dumitru | — | (916) 541 7792 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Ml Building And General Construction | Mark I Lerman | — | (916) 778 7717 | Electricians | Rocklin · Placer County | — | — |
| Mmd Plumbing | Mmd Plumbing | — | (916) 330 9886 | Other | Roseville · Placer County | — | — |
| Mn Construction | Nguyen My | — | (916) 218 9432 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Modern Classics Const | Modern Classics Const | — | (415) 515 6235 | GC, remodel, ADU | Meadow Vista · Placer County | — | — |
| Modern Construction Group INC | Aleksandr Tyukayev | — | (916) 699 7070 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Modern Era Construction INC | Victor Manuel Guzman Lopez | — | (530) 488 0971 | GC, remodel, ADU | Applegate · Placer County | — | — |
| Modern Tile Installation | Stephanie Medrano | — | (916) 870 6141 | Other | Roseville · Placer County | — | — |
| Modern Vision Painting INC | Alex Banar | alex@modernvisionpainting.com | (916) 914 4453 | Windows, patio, painters | Roseville · Placer County | — | — |
| Mohammad Ghanepoor | Mohammad Ghanepoor | — | (916) 886 6363 | Electricians | Roseville · Placer County | — | — |
| Molten Metal Works | Molten Metal Works | — | (530) 682 2574 | Other | Weimar · Placer County | — | — |
| Monolit Builders INC | Alexander Viktor Zeakovi | — | (916) 783 0995 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Monster Tower & Construction INC | Frank Michael Mikowychok | — | (916) 472 6250 | Electricians | Lincoln · Placer County | — | — |
| Montero Construction | Steven Joseph Montero | — | (530) 605 6110 | GC, remodel, ADU | Applegate · Placer County | — | — |
| Montero Electric | James Louis Montero | — | (916) 315 8331 | Electricians | Rocklin · Placer County | — | — |
| Monument Construction | William Timothy Rogers | — | (916) 607 1972 | GC, remodel, ADU | Colfax · Placer County | — | — |
| Moore Engineering INC | Anthony Michael Moore | — | (916) 677 9285 | Other | Auburn · Placer County | — | — |
| Moore Excavating INC | Jeffrey Clyde Moore | — | (916) 871 6128 | Other | Lincoln · Placer County | — | — |
| Morgan Construction Nevada LLC | Jeremy Daniel Ellison | — | (775) 355 0251 | Other | Roseville · Placer County | — | — |
| Morgan Tile Company | Gene Everett Jr Morgan | — | (916) 300 5911 | Other | Loomis · Placer County | — | — |
| Morrison Concrete | Morrison Concrete | — | (916) 712 8144 | Other | Foresthill · Placer County | — | — |