| M&j Tree Care INC | Jerry Gonzalez | — | (408) 892 8209 | Other | San Jose · Santa Clara County | — | — |
| M'guinness Construction | James John M'guinness | — | (650) 814 2330 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| M-a-d Electric | Carlos Daniel Alonso | — | (669) 232 7518 | Electricians | Morgan Hill · Santa Clara County | — | — |
| M2 Build System INC | Nina Ghoncheh Yousefi | — | (408) 230 9259 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Maab Development LLC | Amir Ali Davoodi | — | (415) 717 5182 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| Maan Plumbing INC | Garic Nermin | — | (408) 455 3752 | Other | Sunnyvale · Santa Clara County | — | — |
| Mac Architecture / Construction | Michael Anthony Chacon | — | (650) 796 8895 | GC, remodel, ADU | Palo Alto · Santa Clara County | — | — |
| Mac Landscape INC | Espino Martin Lemuz | — | (408) 718 5848 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Mac-i Electric | Robert Lee Jr Mc Inturff | — | (408) 209 1567 | Electricians | San Jose · Santa Clara County | — | — |
| Machado Services INC | Edward Machado | contact@machadoservices.com | (408) 706 6386 | GC, remodel, ADU | San Martin · Santa Clara County | — | — |
| Maciel Drywall | Manuel Amarante Maciel | macieldrywall@gmail.com | (408) 591 7451 | Other | Morgan Hill · Santa Clara County | — | — |
| Mack Electric | Timothy J Howell | — | (408) 614 3244 | Electricians | San Jose · Santa Clara County | — | — |
| Made Simple Heating & Air INC | Servando Fregoso-Vargas | vando@madesimpleheatingandair.com | (408) 320-5011 | HVAC | Santa Clara · Santa Clara County | — | — |
| Made Simple Heating And Air | Made Simple Heating And Air | vando@madesimpleheatingandair.com | (408) 320-5011 | HVAC | Santa Clara · Santa Clara County | — | — |
| Maestro Drywall | Maestro Drywall | — | (408) 518 1481 | Other | San Jose · Santa Clara County | — | — |
| Maestro Plumbing | Maestro Plumbing | — | (408) 334 8868 | Other | San Jose · Santa Clara County | — | — |
| Mag Construction | Michael Anthony Gonzalez | — | (408) 353 2785 | GC, remodel, ADU | Los Gatos · Santa Clara County | — | — |
| Magallan Concrete | Magallan Concrete | — | (408) 685 3259 | Other | San Jose · Santa Clara County | — | — |
| Magana Masonry | Magana Masonry | — | (650) 269 4418 | Other | East Palo Alto · Santa Clara County | — | — |
| Magellan Construction INC | Arevalo Miguel Angel Contreras | interested@domainmarket.com | (510) 484 1269 | Other | San Jose · Santa Clara County | — | — |
| Magever House Renovation | Everardo Rodriguez | — | (408) 680 1457 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| Maggetti Construction INC | Mitch Louis Maggetti | — | (408) 559 3439 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Maggi Construction Company | Kenneth Raymond Maggi | — | (408) 515 9635 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Magic Tile | Magic Tile | — | (408) 771 9202 | Other | Santa Clara · Santa Clara County | — | — |
| Magna Shutters | Magna Shutters | office@magnashutters.com | (669) 888 6228 | Other | Santa Clara · Santa Clara County | — | — |
| Magnat Flooring INC | Magdalena Maria Jucha | — | (415) 395 6221 | Other | Los Gatos · Santa Clara County | — | — |
| Magnificent Landscape INC | Sara Turco Ramos | — | (408) 905 3881 | Windows, patio, painters | Morgan Hill · Santa Clara County | — | — |
| Magnum Drywall INC | Jeff Alan Lawrence | estimators@magnumdrywall.com | (510) 979 0420 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Magnum Property Inspection | Magnum Property Inspection | — | (408) 226-6200 | Inspectors | San Jose · Santa Clara County | — | — |
| Mahan And Sons INC | Diane M Mahan | — | (408) 761 0028 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Mahema Construction | Manuel Francisco Hernandez Maldonado | — | (408) 966 1043 | Other | San Jose · Santa Clara County | — | — |
| Mahic Construction | Sead Steta | mymail@mailservice.com | (408) 679 0320 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Mahronich Construction | Matthew Stephen Jr Mahronich | — | (415) 716 1999 | GC, remodel, ADU | Los Gatos · Santa Clara County | — | — |
| Mai Construction INC | Deborah Gail Squires | — | (408) 434 9880 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Mai Development & Construction | Mai Thanhtrung | — | (408) 466 5946 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Maier & Dougherty Pump & Supply INC | Jeffery Ryan Dougherty | — | (408) 686 0988 | Other | San Martin · Santa Clara County | — | — |
| Main Street Builders INC | Rocky Robert Rieger | — | (408) 888 5188 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Main Street Underground LLC | Ronald Douglas Bianchini | — | (408) 262 1418 | Other | San Jose · Santa Clara County | — | — |
| Mainline Concrete Cutting | Mainline Concrete Cutting | — | (808) 927 7954 | Other | San Jose · Santa Clara County | — | — |
| Mainman HVAC Electrical & Plumbing | Francesco Rosato Dimambro | — | (408) 554 9529 | HVAC | San Jose · Santa Clara County | — | — |