| Cary Acord/heartwood Flooring | Cary Acord/heartwood Flooring | — | (510) 432 9401 | Windows, patio, painters | Mill Valley · Marin County | — | — |
| Cascade Construction | Rida Mohammed Jamal | sales@cascade-construction.com | (415) 706 8157 | GC, remodel, ADU | Fairfax · Marin County | — | — |
| Cascade Roofing Company | David Richard Cesena | — | (415) 892 6039 | Other roofers | Novato · Marin County | — | — |
| Casey George Joe | Casey George Joe | — | (415) 331 1709 | Windows, patio, painters | Corte Madera · Marin County | — | — |
| Casey Painting | Casey Painting | — | (415) 609 2126 | Windows, patio, painters | San Rafael · Marin County | — | — |
| Castlerock Construction Company | Richard John Degan | — | (415) 515 9768 | GC, remodel, ADU | Novato · Marin County | — | — |
| Castletown Construction Co INC | Thomas Barry Harrington | — | (415) 613 6851 | GC, remodel, ADU | Mill Valley · Marin County | — | — |
| Castro Bros Hardwood Floors INC | Carlos Luis Castro | cbhfloors580@icloud.com | (415) 459 4641 | Other | San Rafael · Marin County | — | — |
| Cat Construction | Ian James Cracknell | — | (415) 868 0302 | GC, remodel, ADU | Bolinas · Marin County | — | — |
| Catchpool Construction And Electric | Christopher Jordan Catchpool | — | (510) 326 2069 | Electricians | San Rafael · Marin County | — | — |
| Cdr Builders INC | Cian Rabbitte | — | (415) 910 4360 | GC, remodel, ADU | Mill Valley · Marin County | — | — |
| Cedar House Construction INC | Brian Alan White | — | (415) 286 1359 | GC, remodel, ADU | San Anselmo · Marin County | — | — |
| Center Electrical | Dale Roland Smith | — | (415) 898 1475 | Electricians | Novato · Marin County | — | — |
| Center Line Builders INC | Charles Howard Lombardi | pb@centerlineframing.com | (415) 450 5908 | GC, remodel, ADU | Novato · Marin County | — | — |
| Central Marin Renovations INC | Sergio Orelvys Espinoza Tercero | — | (415) 532 4953 | GC, remodel, ADU | Novato · Marin County | — | — |
| Century Tile | Anthony Joseph Kenney | — | (415) 899 7476 | Other | Novato · Marin County | — | — |
| Ceres Construction INC | Adrian Liniu Daniel Kovaci | — | (415) 275 4300 | GC, remodel, ADU | Sausalito · Marin County | — | — |
| Cespedes Construction | Esteban Juan Cespedes | — | (415) 798 1934 | GC, remodel, ADU | Novato · Marin County | — | — |
| Cestarollo Construction INC | William Guiseppe Cestarollo | — | (415) 246 2074 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Chad Burum Construction | Chad Willis Burum | — | (415) 307 0316 | GC, remodel, ADU | Novato · Marin County | — | — |
| Champagne Electric | Joshua Thomas Champagne-barber | joshchampagne90@gmail.com | (415) 559 6805 | Electricians | Fairfax · Marin County | — | — |
| Champie Bros | Jack Edward Champie | — | (415) 225 9918 | GC, remodel, ADU | Woodacre · Marin County | — | — |
| Champion Construction Services | Justin Evan Marsh | — | (415) 716 8014 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Chan Drainage LLC | Chan May Armando | — | (415) 497 2517 | Other | Novato · Marin County | — | — |
| Charles & Sons Builders INC | Julian Robert Plath | — | (415) 264 1514 | GC, remodel, ADU | San Anselmo · Marin County | — | — |
| Charles Construction Company | Richard Cosmo Charles | — | (415) 328 7069 | GC, remodel, ADU | Mill Valley · Marin County | — | — |
| Charles Electric And Sons | Charles Michael Olea Cole | — | (415) 475 2775 | Electricians | Fairfax · Marin County | — | — |
| Charles Handelin Construction | Charles Thomas Jr Handelin | — | (415) 250 7050 | GC, remodel, ADU | Larkspur · Marin County | — | — |
| Charles Melin And Sons INC | Charles William Melin | — | (415) 506 4516 | GC, remodel, ADU | Novato · Marin County | — | — |
| Charles P Cihak DBA Kc Building | Kc Building | — | (415) 309 6004 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Charlesworth Custom Cabinetry | Charlesworth Custom Cabinetry | — | (415) 250 2244 | Other | Novato · Marin County | — | — |
| Chase Creative Construction | Lawrence Lincoln Chase | — | (415) 847 5640 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Chavez Construction | Chavez Daniel | — | (415) 933 5200 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Chelsea Builders | Chelsea Builders | — | (415) 264 3807 | GC, remodel, ADU | Fairfax · Marin County | — | — |
| Chenney Construction INC | James Leslie Chenney | — | (415) 720 0658 | GC, remodel, ADU | Greenbrae · Marin County | — | — |
| Chet Walls Construction | Chester Ferdinand Walls | — | (415) 725 6682 | GC, remodel, ADU | Novato · Marin County | — | — |
| Chief Cornerstone Construction Contractors | Bruce Alton Ingram | — | (925) 681 8669 | GC, remodel, ADU | Mill Valley · Marin County | — | — |
| Chim Chimney Sweep Co INC | Arnold Paul Scherer | info@chimchimneysweep.com | (415) 897 6655 | HVAC | Novato · Marin County | — | — |
| Chito's Brush Painting | Fulgencio Gerardo Lopez Velasquez | — | (415) 518 0074 | Windows, patio, painters | San Rafael · Marin County | — | — |
| Chloch Mhor Framing INC | Cooper Cal | — | (415) 889 3843 | Other | San Rafael · Marin County | — | — |