| Glory Bound Technologies | Joseph Giovanni Pinheiro | — | (209) 601 4497 | Other | Suisun City · Solano County | — | — |
| Gm Custom Concrete | Gerardo Ivan Amezcua Aburto | — | (707) 624 0700 | Other | Vacaville · Solano County | — | — |
| Gm3 Elite Construction INC | Gabino Marquez | — | (707) 315 2043 | GC, remodel, ADU | Vallejo · Solano County | — | — |
| Gma Construction | Gregory Robert Abbott | — | (707) 373 3678 | GC, remodel, ADU | Benicia · Solano County | — | — |
| Go Mechanical | Go Mechanical | — | (707) 628 3897 | HVAC | Fairfield · Solano County | — | — |
| Gold R R Remodeling | Saul Sr Harrizon Gonzalez | — | (707) 430 8295 | GC, remodel, ADU | Fairfield · Solano County | — | — |
| Golden Ace Construction INC | Zapien Roberto Guerrero | — | (707) 386 7676 | GC, remodel, ADU | Fairfield · Solano County | — | — |
| Golden Bay Electric | Edgar Jesus Ortega Brito | — | (415) 306 4961 | Electricians | Vallejo · Solano County | — | — |
| Golden Bay Painting | Golden Bay Painting | — | (415) 318 0348 | Windows, patio, painters | Vallejo · Solano County | — | — |
| Golden Bear Acoustics | Golden Bear Acoustics | — | (707) 486 3721 | Other | Vacaville · Solano County | — | — |
| Golden Coast Doors | Golden Coast Doors | — | (707) 419 0434 | Other | Fairfield · Solano County | — | — |
| Golden Eagle Drywall INC | Lisandro Gomez | — | (650) 219 1222 | Other | Fairfield · Solano County | — | — |
| Golden Gate Gardens INC | Mitch Claypool Glaser | — | (707) 246 2983 | Windows, patio, painters | Benicia · Solano County | — | — |
| Golden Gate Landscape | Golden Gate Landscape | — | (707) 246 3232 | Windows, patio, painters | Fairfield · Solano County | — | — |
| Golden Gate Technical HVAC | Golden Gate Technical HVAC | — | (707) 641 3713 | HVAC | Vallejo · Solano County | — | — |
| Golden Hills Glass | Golden Hills Glass | — | (707) 580 3853 | Windows, patio, painters | Vacaville · Solano County | — | — |
| Golden Hills Heating And Air | Golden Hills Heating And Air | — | (707) 249 0559 | HVAC | Vacaville · Solano County | — | — |
| Golden Star Construction | Golden Star Construction | — | (858) 350-1745 | Other roofers | Solana Beach · Solano County | — | — |
| Golden State Appliance Installs | Chris Lawrence Leid | — | (707) 816 7644 | Other | Fairfield · Solano County | — | — |
| Golden State Bridge INC | Paul Anthony Lukaszewicz | — | (925) 372 8000 | GC, remodel, ADU | Benicia · Solano County | — | — |
| Golden State Bridge LLC | Michael Edwin Macleod | — | (925) 372 8000 | Other | Benicia · Solano County | — | — |
| Golden State Comfort Systems INC | Gregory Joel Vogel | — | (707) 434 3664 | HVAC | Fairfield · Solano County | — | — |
| Golden State Electric | Eddie Joseph Gumataotao | — | (707) 207 5351 | Electricians | Vacaville · Solano County | — | — |
| Golden State Intergration LLC | Brian Lee Smith | — | (916) 825 7284 | Other | Benicia · Solano County | — | — |
| Golden State Painting And Company | Alex Ali Bozok | — | (510) 965 5552 | Windows, patio, painters | Vallejo · Solano County | — | — |
| Golden State Power And Controls | Golden State Power And Controls | — | (707) 655 1271 | Electricians | Benicia · Solano County | — | — |
| Golden State Tile Flooring Corp | Sergio Sausedo Arriaga | — | (707) 689 7613 | Other | Vacaville · Solano County | — | — |
| Golden West Renovations | James Richard Pawloski | info@goldenwestrenovations.com | (707) 333 7150 | GC, remodel, ADU | Benicia · Solano County | — | — |
| Goldland Landscaping | Dzung Joe Nguyen | — | (510) 566 8088 | Windows, patio, painters | Vallejo · Solano County | — | — |
| Goliah X Home And Comercial Services | David Timothy Brown | — | (707) 712 5006 | GC, remodel, ADU | Vacaville · Solano County | — | — |
| Gomaxxx INC | Maria Mercedes Hoffmann | — | (707) 782 6611 | Electricians | Benicia · Solano County | — | — |
| Gomez Construction | Marco Antonio Gomez | — | (415) 299 7554 | GC, remodel, ADU | Vallejo · Solano County | — | — |
| Gomez Landscaping | Gomez Landscaping | — | (707) 373 2375 | Windows, patio, painters | Vacaville · Solano County | — | — |
| Good Samaritan Electric | Russell Vance Dorsey | — | (707) 330 1600 | Electricians | Suisun City · Solano County | — | — |
| Govea Rivera Roofing | Fernando Samuel Govea Rivera | — | (707) 770 4653 | Other roofers | Fairfield · Solano County | — | — |
| Govea Roofing Co | Jose Isabel Govea | contactus@govearoofing.com | (707) 718 8521 | Other roofers | Vacaville · Solano County | — | — |
| Gowatt Electric | Mokdes Rachid | — | (510) 260 9578 | Electricians | Vacaville · Solano County | — | — |
| Grace & Glory Painting | Grace & Glory Painting | — | (408) 568 6009 | Windows, patio, painters | Fairfield · Solano County | — | — |
| Graciano Pro Electric | Jorge Luis Graciano | — | (707) 689 9033 | Electricians | Fairfield · Solano County | — | — |
| Gray Construction Services INC | John Byrne Gray | — | (707) 696 4438 | GC, remodel, ADU | Fairfield · Solano County | — | — |