| Frank E Connell & Son Plastering | Frank Edward Connell | — | (415) 827 8777 | Other | Mill Valley · Marin County | — | — |
| Frank Greco Electric | Frank John Greco | — | (415) 595 7047 | Electricians | Larkspur · Marin County | — | — |
| Frank Thomas Plumbing Co INC | Francesco Salvatore Thomas | — | (415) 686 4236 | Other | Fairfax · Marin County | — | — |
| Franks Water Heater Company | Trevor Daniel Crowder | — | (415) 302 1787 | Other | Novato · Marin County | — | — |
| Fred Bretz Electric | Frederick L Bretz | — | (415) 686 5259 | Electricians | San Geronimo · Marin County | — | — |
| Fredy's Pool And Spa INC | Jose Fredy Rodriguez Leon | — | (707) 641 5050 | Pool | San Rafael · Marin County | — | — |
| Fresh Coat Painters Of Marin | Albert Clifford Hudson | — | (559) 313 4497 | Windows, patio, painters | San Anselmo · Marin County | — | — |
| Frey Incorporated | Barry James Frey | — | (415) 897 4510 | Other | Novato · Marin County | — | — |
| Friendly Painting | Friendly Painting | — | (415) 299 7861 | Windows, patio, painters | Novato · Marin County | — | — |
| Friesian Woodworks | Friesian Woodworks | — | (415) 488 4904 | GC, remodel, ADU | Woodacre · Marin County | — | — |
| Fritz Building Co | Joaquin Vaughn Fritz | — | (415) 235 6865 | GC, remodel, ADU | Greenbrae · Marin County | — | — |
| Fsp General Contractors LLC | Frederick Michael John Scafani | — | (415) 233 1723 | GC, remodel, ADU | Greenbrae · Marin County | — | — |
| Full Circle Remodeling | Full Circle Remodeling | — | (415) 203 9720 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Full Coverage Company | Danny Leigh Check | — | (915) 720 6619 | Other roofers | Mill Valley · Marin County | — | — |
| Full Gamut Design & Build | Full Gamut Design & Build | — | (415) 497 9114 | GC, remodel, ADU | Sausalito · Marin County | — | — |
| Full Moon Construction | James Charles Brind'amour | — | (415) 717 3620 | GC, remodel, ADU | Novato · Marin County | — | — |
| Full Scope Plumbing | Christopher Anthony Rodriguez | — | (415) 717 8040 | Other | Novato · Marin County | — | — |
| Fusco Plumbing And Heating | Fusco Plumbing And Heating | brian@fuscoplumbingandheating.com | (415) 850 9780 | HVAC | San Rafael · Marin County | — | — |
| G & R Landscaping Construction | Melendez Gonzalo | — | (415) 455 8933 | Windows, patio, painters | San Rafael · Marin County | — | — |
| G B Construction | Bob B Chew | — | (415) 531 3168 | GC, remodel, ADU | Corte Madera · Marin County | — | — |
| G Bros Landscape INC | Ulises Antonio Gonzalez Coreas | — | (415) 504 5856 | Windows, patio, painters | San Rafael · Marin County | — | — |
| G De Leon Construction INC | Galindo Rolando De Leon Reyes | — | (415) 260 9667 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| G Domer Construction | Gary Lee Domer | — | (415) 464 0900 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| G Electric LLC | Walter Wade Underhill | — | (415) 444 0573 | Electricians | San Rafael · Marin County | — | — |
| G Family INC | David Daniel Grabham | — | (415) 444 0573 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| G Hau Builder | G Hau Builder | — | (415) 305 1652 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| G Hope Construction | George O Hope | — | (707) 206 5556 | GC, remodel, ADU | Inverness · Marin County | — | — |
| G L C Construction Company INC | George Louis Carrasco | — | (415) 382 8001 | GC, remodel, ADU | Novato · Marin County | — | — |
| G Landscape Division LLC | Zachary David Wahle | — | (415) 444 0573 | Windows, patio, painters | San Rafael · Marin County | — | — |
| G M Construction | Gregory Joseph Marcotte | — | (415) 302 8329 | GC, remodel, ADU | Bolinas · Marin County | — | — |
| G Moran Construction INC | George Thomas Moran | gmoran@gmoranconstruction.com | (415) 518 1834 | GC, remodel, ADU | Mill Valley · Marin County | — | — |
| G N Jessen | G N Jessen | — | (415) 497 2044 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| G O Construction | Glenn Robert Osmidoff | — | (415) 215 9261 | GC, remodel, ADU | Novato · Marin County | — | — |
| G Plumbing Services | Calvin Dante Gotelli | — | (415) 497 3610 | Other | San Rafael · Marin County | — | — |
| G S S Construction | George Stephen Sabourin | — | (415) 385 8996 | GC, remodel, ADU | Novato · Marin County | — | — |
| G T Construction | Gordon Henry Tindall | info@gtconstruction.com | (415) 209 4595 | GC, remodel, ADU | Fairfax · Marin County | — | — |
| G W G Sidewall | G W G Sidewall | — | (415) 724 9689 | Windows, patio, painters | San Rafael · Marin County | — | — |
| Gagne - Mulford Enterprises DBA Benjamin Franklin Plumbing 30 | John Frank Rossi | — | (415) 763 4002 | GC, remodel, ADU | Novato · Marin County | — | — |
| Gagne Rossi Enterprises INC | John Frank Rossi | — | (415) 763 4002 | GC, remodel, ADU | Novato · Marin County | — | — |
| Gaidano & Sons Painting & Decorating INC | David Santino Gaidano | — | (415) 482 6055 | GC, remodel, ADU | San Rafael · Marin County | — | — |