| Martin Klein Professional Painting | Martin Klein Professional Painting | — | (510) 332 1254 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Martin Luna Flooring | Martin Luna Flooring | — | (510) 760 3690 | Other | Hayward · Alameda County | — | — |
| Martin's Bay Area Construction | Ignacio Martin | ignacio@martinsbayareaconstruction.com | (510) 507 4684 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Martin's Electric | Martin Christian Serena | — | (510) 299 5838 | Electricians | Fremont · Alameda County | — | — |
| Martinez Builder Construction | Luis Martin Matias | martinezction23@gmail.com | (510) 866 7260 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Martinez Construction | Rene Aristides Martinez | — | (510) 534 2994 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Martinez Flooring | Martinez Flooring | — | (650) 333 4551 | Other | Hayward · Alameda County | — | — |
| Martinez Painting | Martinez Painting | info@martinez-painting.com | (510) 332 1593 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Martinez Painting Co | Mauricio Antonio Martinez | info@martinez-painting.com | (650) 333 7273 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Martins Communications | Martins Communications | — | (925) 667 0468 | Other | Livermore · Alameda County | — | — |
| Marucheck Construction | Matthew Chad Marucheck | — | (415) 250 2386 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Marv-j Painting | Marv-j Painting | — | (510) 759 4706 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Marvic Painting Co | Pereira Mardoqueo | — | (650) 520 7278 | Windows, patio, painters | Newark · Alameda County | — | — |
| Marvin Plumbing | Huajie Nfn | — | (510) 328 8368 | Other | Oakland · Alameda County | — | — |
| Mascheroni Construction INC | Robert Dante Mascheroni | — | (510) 845 3100 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Mashal Builders & Contractors INC | Mohammed Saleh Mashal | — | (510) 590 0818 | GC, remodel, ADU | Albany · Alameda County | — | — |
| Mason Bruce Lindow | Mason Bruce Lindow | — | (510) 468 6946 | GC, remodel, ADU | San Lorenzo · Alameda County | — | — |
| Massay Electric | James Dave Massay | — | (510) 522 0234 | Electricians | Alameda · Alameda County | — | — |
| Massoumi Impact Construction INC | Hassan Michael Massoumi | — | (510) 381 0677 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Master Craft Waterproofing & Sealants | Master Craft Waterproofing & Sealants | — | (408) 640 5829 | Windows, patio, painters | Livermore · Alameda County | — | — |
| Master Electric | Malkic Armin | — | (510) 388 3030 | Electricians | Alameda · Alameda County | — | — |
| Master Lath And Plastering INC | Jaime David Lopez Lopez | — | (510) 706 7637 | Other | Hayward · Alameda County | — | — |
| Master Plumbing Solutions INC | Barrientos Bayron Paredes | — | (510) 381 1609 | Other | Oakland · Alameda County | — | — |
| Master Roofing Company | Soon Il Kwon | — | (510) 532 3482 | Other roofers | Oakland · Alameda County | — | — |
| Master Tech Irrigation Lanscape | Master Tech Irrigation Lanscape | — | (650) 642 7487 | Windows, patio, painters | Fremont · Alameda County | — | — |
| Mastercraft Custom Interiors | Mastercraft Custom Interiors | — | (510) 530 8843 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Masterpiece Windows | Masterpiece Windows | — | (510) 750 5833 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Masterpro Installs Corp | Filipe Jose Barros Correia Cavalcanti | — | (650) 660 0603 | Other | San Leandro · Alameda County | — | — |
| Masuko Landscaping | Masuko Landscaping | — | (510) 882 1495 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Matafied Mechanical | Matafied Mechanical | — | (925) 784 8108 | HVAC | Livermore · Alameda County | — | — |
| Matarazza Incorporated | Ralph Anthony Matarazza | — | (925) 337 4151 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| Mateo Mejia's Drywall And Taping | Mateo Mejia's Drywall And Taping | — | (510) 332 1782 | Other | Oakland · Alameda County | — | — |
| Matharu Construction INC DBA Deep Construction | Amarjit Singh Matharu | — | (415) 497 3400 | GC, remodel, ADU | Union City · Alameda County | — | — |
| Mathews Mechanical | Jason Robert Mathews | — | (510) 475 9950 | Other | Newark · Alameda County | — | — |
| Mathey Tree Care | Mathey Tree Care | — | (510) 326 2686 | Tree | Oakland · Alameda County | — | — |
| Matrix Builder LLC | Yuqi Tian | — | (510) 455 5666 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Matrix Electric Contractors INC | Mahdi Mohammed Mashal | — | (510) 919 2828 | Electricians | Emeryville · Alameda County | — | — |
| Matt Horn Landscaping And Tree Care | Horn Matt Landscaping_and Tree Care | — | (510) 589 2979 | Windows, patio, painters | Berkeley · Alameda County | — | — |
| Matt Hornby Garden Design And Installation | Matthew James Hornby | — | (510) 717 1342 | Windows, patio, painters | Berkeley · Alameda County | — | — |
| Matthew Bromley | Matthew Bromley | jonpinhorn.typedesign@gmail.com | (510) 657 8089 | GC, remodel, ADU | Livermore · Alameda County | — | — |