| Future Communications | Future Communications | — | (805) 450 2223 | Other | Ventura · Ventura County | — | — |
| Fz Landscaping INC | Francisco Zamora | — | (805) 443 9760 | Windows, patio, painters | Moorpark · Ventura County | — | — |
| G & C Roofing INC | Escobedo Barrera Genaro | — | (805) 405 3332 | Other roofers | Simi Valley · Ventura County | — | — |
| G & R Concrete INC | Raymond Anthony Savala | — | (805) 659 3159 | Other | Ventura · Ventura County | — | — |
| G & R Hammer Construction | De Jesus Edilberto Gallego | — | (805) 743 9584 | GC, remodel, ADU | Port Hueneme · Ventura County | — | — |
| G & S Acoustics INC | Jeff Ralph Gilbert | — | (805) 583 2628 | Other | Simi Valley · Ventura County | — | — |
| G A Snowden Electrical Services | Gregory Alan Snowden | — | (805) 914 9016 | Electricians | Meiners Oaks · Ventura County | — | — |
| G And R Demo And Hauling LLC | Raymundo Jr Carrillo | — | (805) 889 6388 | Other | Oxnard · Ventura County | — | — |
| G C Excavating | G C Excavating | — | (805) 797 2722 | Other | Thousand Oaks · Ventura County | — | — |
| G D And Sons INC | Delgadillo Guillermo | — | (818) 253 6782 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| G D Robinson Plumbing Co | Gary Dean Robinson | — | (805) 208 3969 | Other | Simi Valley · Ventura County | — | — |
| G G General Construction | Gerardo Moreno Garcia | — | (805) 573 3494 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| G H Construction | Christian Gunner Hillner | — | (805) 217 1908 | Electricians | Simi Valley · Ventura County | — | — |
| G L Ribiat Building Contractor | G L Ribiat Building Contractor | — | (805) 415 7530 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| G Lopez Tiling Co | Lopez Gustavo | — | (805) 200 8479 | Other | Port Hueneme · Ventura County | — | — |
| G M Builders | G M Builders | — | (805) 320 8090 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| G M C Electric | Gary Michael Chiapuzio | — | (805) 377 3881 | Electricians | Thousand Oaks · Ventura County | — | — |
| G M C Plumbing | G M C Plumbing | — | (805) 320 6588 | Other | Oxnard · Ventura County | — | — |
| G M S Landscaping INC | Calderon Genaro | — | (805) 517 4055 | Windows, patio, painters | Moorpark · Ventura County | — | — |
| G N S Construction | Greg Neal Stewart | — | (805) 732 4406 | Electricians | Thousand Oaks · Ventura County | — | — |
| G Q Construction | Gilberto Jimenez Quezada | — | (805) 890 2653 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| G R C Company Pools And Spas | Guy Raymond Corr | — | (805) 796 6645 | Pool | Thousand Oaks · Ventura County | — | — |
| G R V Masonry Construction | Gary Gerardo Rodriguez | — | (805) 501 7780 | Other | Moorpark · Ventura County | — | — |
| G Rossi Construction INC | Alfred George Jr Rossi | info@grossiconstruction.com | (805) 878 2662 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| G S Construction | Gregory John Schomaker | — | (805) 658 0432 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| G S Construction | Gareth Karl David Storer | — | (805) 469 2421 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| G T Commercial Concrete INC | Todd Branson Hand | — | (818) 833 1293 | Other | Simi Valley · Ventura County | — | — |
| G T Murphy Construction | Gary Thomas Murphy | — | (805) 520 1212 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| G W Surfaces | Diego Morales Garcia | sales@gwsurfaces.com | (805) 642 5004 | Other | Ventura · Ventura County | — | — |
| G-force I & E Group INC | Carlos Pamatian Garcia | info@gforceiegroup.com | (805) 366 0662 | Electricians | Oxnard · Ventura County | — | — |
| G1 Construction INC Which Will Do Business In California As Tag | Torri Ann Galaviz | — | (805) 217 1574 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| G3 Group La INC | Terry Robert Goebel | — | (805) 557 1075 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| Gabriel A D Schwind | Gabriel A D Schwind | — | (805) 732 7042 | Other | Thousand Oaks · Ventura County | — | — |
| Gabriel Covarrubias | Gabriel Covarrubias | gabrielcovarrubias.artist@gmail.com | (805) 444 7548 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Gabriel Hernandez Ruiz | Gabriel Hernandez Ruiz | — | (805) 231 5576 | Other | Oxnard · Ventura County | — | — |
| Gabriel L Nava | Gabriel L Nava | — | (805) 218 0635 | Windows, patio, painters | Ojai · Ventura County | — | — |
| Gaddis Construction INC | Carl David Gaddis | admin@gaddisconstruction.com | (805) 651 0799 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| Gaia Builder | Gaia Builder | — | (805) 855 1000 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Galaxy Draperies | David Allan Baker | — | (818) 782 1660 | Other | Simi Valley · Ventura County | — | — |
| Galella Construction Services INC | Timothy Isaac Galella | — | (818) 430 8656 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |