| Fuse HVAC | Valentin Sergeev | — | (510) 990 9889 | HVAC | Pacifica · San Mateo County | — | — |
| Fuse HVAC Electrical And Plumbing | Fuse HVAC Electrical And Plumbing | — | (669) 240-1215 | HVAC | San Mateo · San Mateo County | — | — |
| Fusion Electric | Fabian Hernandez | — | (650) 281 3759 | Electricians | San Mateo · San Mateo County | — | — |
| G & B Contractors INC | Jean Gorostiague | — | (650) 465 7131 | GC, remodel, ADU | Burlingame · San Mateo County | — | — |
| G & C Construction Services INC | Guillermo Canahuati | — | (415) 264 3179 | GC, remodel, ADU | San Mateo · San Mateo County | — | — |
| G & G Construction Company | Derek Rene Bahamondes | — | (650) 722 3995 | GC, remodel, ADU | San Carlos · San Mateo County | — | — |
| G Bortolotto & Company | Mattia Giuseppe Bortolotto | — | (650) 595 2591 | Other | San Carlos · San Mateo County | — | — |
| G G Construction | William Alfred Jr Glenn | — | (415) 450 5365 | GC, remodel, ADU | Pacifica · San Mateo County | — | — |
| G K Construction | George A Keuftedjian | — | (650) 520 3740 | GC, remodel, ADU | San Bruno · San Mateo County | — | — |
| G M C Construction | Gary Martin Catney | — | (650) 576 0611 | GC, remodel, ADU | San Mateo · San Mateo County | — | — |
| G M Electric | Paul Christopher Menicucci | — | (650) 755 5596 | Electricians | Daly City · San Mateo County | — | — |
| G M M Construction Co | Gino Nelo Matiasic | — | (650) 922 4215 | GC, remodel, ADU | San Bruno · San Mateo County | — | — |
| G O Painting | G O Painting | — | (415) 261 5642 | Windows, patio, painters | Daly City · San Mateo County | — | — |
| G P Electric INC | Zhou Guoping | — | (650) 303 9280 | Electricians | Millbrae · San Mateo County | — | — |
| G P S Plumbing | G P S Plumbing | — | (650) 678 2370 | Other | San Mateo · San Mateo County | — | — |
| G Suppes Upholstery INC | George Biddle Iii Suppes | — | (650) 921 4712 | Other | Burlingame · San Mateo County | — | — |
| G W Construction Co | George Edward Jr Wilkie | — | (650) 888 4110 | GC, remodel, ADU | San Mateo · San Mateo County | — | — |
| G-core Engineering | David Jose Garcia | — | (415) 871 6816 | GC, remodel, ADU | Pacifica · San Mateo County | — | — |
| G-max Construction | Gregory Paul Maxwell | — | (415) 425 5355 | GC, remodel, ADU | Burlingame · San Mateo County | — | — |
| Gabe Thorn Construction | Gabriel Lawrence Thorn | — | (650) 285 8368 | GC, remodel, ADU | Redwood City · San Mateo County | — | — |
| Gabor Kubisch Residential Builders | Gabor Kubisch Residential Builders | — | (650) 218 1484 | GC, remodel, ADU | Belmont · San Mateo County | — | — |
| Gabriel David Electric | Gabriel David Maldonado | — | (650) 464 1408 | Electricians | Redwood City · San Mateo County | — | — |
| Gachina Landscape Management INC | Tyler Michael Stocking | — | (650) 853 0400 | Windows, patio, painters | Menlo Park · San Mateo County | — | — |
| Galaxy | Galaxy | info@galaxyservices.com | (925) 578-3379 | HVAC | San Mateo · San Mateo County | — | — |
| Galco Construction & Development INC | Gerard Joseph Gallagher | — | (415) 828 9011 | GC, remodel, ADU | Burlingame · San Mateo County | — | — |
| Galea Construction | Galea Frank | — | (650) 430 4939 | GC, remodel, ADU | San Mateo · San Mateo County | — | — |
| Gallagi Painting | Gallagi Painting | — | (650) 759 2978 | Windows, patio, painters | Burlingame · San Mateo County | — | — |
| Galo Oasis Landscaping INC | Lopez Deybi Garcia | — | (650) 898 4538 | Windows, patio, painters | Foster City · San Mateo County | — | — |
| Gambrioli Developments INC | Gregory Lee Gambrioli | — | (650) 333 6844 | GC, remodel, ADU | Burlingame · San Mateo County | — | — |
| Gant Electric | Gary David Gant | — | (650) 438 5000 | Electricians | Daly City · San Mateo County | — | — |
| Garage Door Factory | Garage Door Factory | — | (650) 363 1461 | Other | Redwood City · San Mateo County | — | — |
| Garay's Painting INC | Trejo Melchor Garay | — | (650) 308 5653 | Windows, patio, painters | Redwood City · San Mateo County | — | — |
| Garcia Landscape Management | Garcia Landscape Management | — | (650) 444 4604 | Windows, patio, painters | Woodside · San Mateo County | — | — |
| Garcia's Construction | Noel Jesus Garcia | — | (650) 823 8887 | GC, remodel, ADU | Pacifica · San Mateo County | — | — |
| Garcia's Landscaping & Hardscape | Garcia's Landscaping & Hardscape | — | (415) 676 7003 | Windows, patio, painters | Daly City · San Mateo County | — | — |
| Garcialta Construction INC | Juan Antonio Galvan Garcia | — | (650) 649 8210 | GC, remodel, ADU | Redwood City · San Mateo County | — | — |
| Garden Sense INC DBA Janet Bell & Associates | Janet Sue Bell | — | (650) 369 3400 | GC, remodel, ADU | Menlo Park · San Mateo County | — | — |
| Gardiner Construction | Joseph Patrick Gardiner | — | (415) 845 0504 | GC, remodel, ADU | Millbrae · San Mateo County | — | — |
| Garfias Construction INC | Guillermo Alfredo Garfias | — | (415) 385 9769 | GC, remodel, ADU | Pacifica · San Mateo County | — | — |
| Garibaldi Plumbing Company INC | Marc Richard Garibaldi | — | (650) 340 7001 | Other | Burlingame · San Mateo County | — | — |