| Ghilotti Bros INC | Gino George Ghilotti | — | (415) 454 7011 | Other | San Rafael · Marin County | — | — |
| Ghilotti Bros/gsw Jv | Bros INC Ghilotti | — | (415) 454 7011 | Other | San Rafael · Marin County | — | — |
| Ghilotti Bros/vanguard Construction Jv | Bros INC Ghilotti | — | (415) 454 7011 | Other | San Rafael · Marin County | — | — |
| Giacomini Tile & Stone | Giacomini Tile & Stone | — | (707) 693 4118 | Other | Olema · Marin County | — | — |
| Gideon Construction | Eric Bertrand Gideon | — | (415) 342 1642 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Giesen Painting Co | Gregory Kent Giesen | — | (415) 456 0146 | Windows, patio, painters | San Anselmo · Marin County | — | — |
| Gilmore Company | Peter Edward Gilmore | info@gilmore.com | (415) 370 4591 | HVAC | San Rafael · Marin County | — | — |
| Ginger Builder | Ginger Builder | — | (415) 246 7597 | GC, remodel, ADU | San Anselmo · Marin County | — | — |
| Giuliani Flooring | Giuliani Flooring | — | (415) 601 7414 | Other | San Anselmo · Marin County | — | — |
| Glad Electric Service | Glad David | — | (415) 810 2507 | Electricians | Mill Valley · Marin County | — | — |
| Glass & Sash INC DBA Solarium & Skylight Systems | Fariborz Arfaian | — | (415) 456 2240 | Windows, patio, painters | San Rafael · Marin County | — | — |
| Glen Edwinson | Glen Edwinson | — | (415) 895 8627 | GC, remodel, ADU | Mill Valley · Marin County | — | — |
| Glencloy | Mc Auley Laurence | — | (415) 927 9087 | GC, remodel, ADU | Corte Madera · Marin County | — | — |
| Glenn Sewing Construction | Glenn Stewart Sewing | — | (415) 847 1795 | GC, remodel, ADU | Novato · Marin County | — | — |
| Gli Norcal Landscape Construction | Casey George Joe | — | (415) 331 1709 | Windows, patio, painters | Corte Madera · Marin County | — | — |
| Gll Landscape Construction | Luis Alberto Gonzalez | — | (415) 246 5951 | Windows, patio, painters | Novato · Marin County | — | — |
| Gold Coast Painting | Philip Richard Balter | caryn@goldcoastpainting.com | (415) 883 1710 | Windows, patio, painters | Sausalito · Marin County | — | — |
| Golden Bay Contractor | Golden Bay Contractor | info@goldenbaycontractor.com | (707) 752-4516 | GC, remodel, ADU | Novato · Marin County | — | — |
| Golden Gate Builders INC | Matthew Stephen Quinn | — | (415) 729 9939 | GC, remodel, ADU | Sausalito · Marin County | — | — |
| Golden Gate Foundation Repair LLC | Jonathan Kaohu Bruce | — | (415) 539 8942 | Other | Sausalito · Marin County | — | — |
| Golden Gate Renewables | Golden Gate Renewables | — | (562) 287 2230 | Electricians | San Rafael · Marin County | — | — |
| Golden Gate Tree Care LLC | Thomas Leslie Goodwin | — | (415) 302 7304 | Other | Mill Valley · Marin County | — | — |
| Golden General Contractors INC | Francisco Javier Guevara | — | (415) 382 8648 | GC, remodel, ADU | Novato · Marin County | — | — |
| Golden State Handyman INC | John Vincent Charbonneau | admin1@goldenstatehandyman.com | (415) 599 5955 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Golf Irrigation Consultants | Craig Forrest Zellers | — | (415) 342 1030 | Windows, patio, painters | Fairfax · Marin County | — | — |
| Gompertz Infrastructure | Gompertz Infrastructure | — | (415) 497 5021 | Other | Nicasio · Marin County | — | — |
| Gonzalez Landscaping | Gonzalez Landscaping | — | (707) 529 5141 | Windows, patio, painters | San Rafael · Marin County | — | — |
| Gonzalez Painting | Gonzalez Painting | — | (415) 524 9046 | Windows, patio, painters | Novato · Marin County | — | — |
| Good Plumbing Company | Meskhi Mikheil | — | (415) 644 8811 | Other | Sausalito · Marin County | — | — |
| Gordon Walker Builders | Gordon Walker Builders | — | (415) 302 0232 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Gospel Flat Farm | Donald Whitney Murch | — | (415) 640 5425 | Other | Bolinas · Marin County | — | — |
| Graf Van & Storage INC | Richard Leigh Gelsi-Medeot | — | (415) 479 6262 | Other | San Rafael · Marin County | — | — |
| Grange Debris Box & Wrecking Co Incorporated | Frederick Clarence Grange | — | (415) 456 2712 | Other | Corte Madera · Marin County | — | — |
| Grant Gildroy Residential Renovations | Grant Gildroy Residential Renovations | — | (415) 601 2321 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Gray Lath And Plaster | Gray Lath And Plaster | — | (415) 747 7556 | Other | Mill Valley · Marin County | — | — |
| Gray Matter Concrete Design | Gray Matter Concrete Design | — | (415) 686 1987 | Other | Fairfax · Marin County | — | — |
| Grayson Williams | Grayson Williams | — | (415) 717 5110 | GC, remodel, ADU | Larkspur · Marin County | — | — |
| Green Bay By Hernandez Landscaping Co | Hernandez Gonzalez Juan | — | (415) 499 2976 | Windows, patio, painters | San Rafael · Marin County | — | — |
| Green Bay Painting INC | Zacharewicz Bartlomiej | — | (925) 818 3996 | Windows, patio, painters | Novato · Marin County | — | — |
| Green Chameleon Painting | Green Chameleon Painting | — | (707) 552 1220 | Windows, patio, painters | Novato · Marin County | — | — |