| Gruber Grading And Ag | Jason Michael Gruber | — | (805) 794 9950 | Other | Oak View · Ventura County | — | — |
| Gruen Construction Co INC | Gale George Gruen | admin@gruenconstruction.com | (805) 480 3355 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Gruver Construction | Bruce William Gruver | — | (310) 292 7624 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| Gsd Home Services INC | Richard Eric Stalnaker | — | (805) 341 5288 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Gsd Landscape INC | Blade Colin Brady | — | (843) 395 8550 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Gsm Pipeline Construction & Repair | Gregory Scott Myers | — | (805) 258 8697 | Other | Oxnard · Ventura County | — | — |
| Gswc Audio And Video INC | Andres Paulino Garcia-salazar | — | (805) 890 1512 | Other | Oxnard · Ventura County | — | — |
| Gta Constructor INC | Gerald Todd Alderman | — | (805) 644 5685 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Guaranteed Socal Construction Company | Casillas Hernandez Humberto | — | (310) 936 3491 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| Guardian Fence Builders Corp | Andre Christian Stikkelman | — | (805) 328 2160 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Guerrero Works INC | Jonathan Monico Guerrero | — | (805) 915 7227 | Other | Simi Valley · Ventura County | — | — |
| Guillermo Ramirez Beristain DBA Grb Tile And Stone | Grb Tile And Stone | — | (805) 558 8775 | Other | Thousand Oaks · Ventura County | — | — |
| Gunn Construction | Robert Alan Gunn | — | (805) 208 9395 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Gustavo Gp Painting INC | Perez Gustavo Guevara | — | (805) 204 6090 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Gustavo Mondragon Chavez | Gustavo Mondragon Chavez | — | (805) 816 3530 | Pool | Oxnard · Ventura County | — | — |
| Gustavo Perez | Gustavo Perez | — | (805) 358 4017 | Windows, patio, painters | Thousand Oaks · Ventura County | — | — |
| Gutierrez Construction | Joe Alfredo Gutierrez | — | (805) 907 2747 | Other | Moorpark · Ventura County | — | — |
| Gutierrez Roofing Company | Adam Gerard Gutierrez | — | (805) 901 8052 | Other roofers | Ventura · Ventura County | — | — |
| Gutter Flow | Gutter Flow | — | (818) 272 0069 | Other | Simi Valley · Ventura County | — | — |
| Guy Azulay | Guy Azulay | — | (760) 613 5208 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Guy Brian Electric Lighting Services Company | Brian Leigh Guy | — | (805) 857 9917 | Electricians | Thousand Oaks · Ventura County | — | — |
| Guy Funk Framing | Guy Funk Framing | — | (805) 881 2422 | Other | Ventura · Ventura County | — | — |
| Guyon General Maintenance INC | Sidney Charles Guyon | — | (805) 581 3125 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Guzman Construction | Hector Rene Guzman-mancilla | — | (805) 754 5254 | GC, remodel, ADU | Santa Paula · Ventura County | — | — |
| Guzman Power & Electric INC | Carlos Guzman | — | (805) 660 9414 | Electricians | Simi Valley · Ventura County | — | — |
| Guzman's Painting | Marco Antonio Guzman | — | (805) 479 7417 | Windows, patio, painters | Oxnard · Ventura County | — | — |
| Gv Construction & Design INC | German Vargas | — | (805) 815 2964 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| Gw Construction | Garrett Jesse Whitlock | — | (209) 404 4137 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Gw Glazing Solutions | Gregory Lee Jr White | — | (805) 660 6209 | Windows, patio, painters | Westlake Village · Ventura County | — | — |
| H & H Builders And Restoration INC | Nina Haber | — | (805) 206 0684 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| H C O Holdings INC DBA Conejo Construction | Benjamin Garcia | — | (805) 988 3069 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| H D S Painting INC | Hugo Ayala Aguilar | — | (805) 889 6949 | Windows, patio, painters | Oxnard · Ventura County | — | — |
| H D Sulser & Son Construction INC | Harold Douglas Sulser | — | (805) 432 8340 | GC, remodel, ADU | Somis · Ventura County | — | — |
| H F Flooring | H F Flooring | — | (661) 390 1184 | Other | Simi Valley · Ventura County | — | — |
| H F R Construction LLC | Hilario Fernandez | — | (805) 705 6242 | GC, remodel, ADU | Port Hueneme · Ventura County | — | — |
| H G Construction | Goerner Hugo | — | (805) 844 4728 | GC, remodel, ADU | Santa Paula · Ventura County | — | — |
| H G M R Flooring | H G M R Flooring | — | (805) 236 0418 | Other | Oxnard · Ventura County | — | — |
| H M Iron Works | H M Iron Works | info@indiantypefoundry.com | (805) 628 0709 | Other | Ventura · Ventura County | — | — |
| H Martinez Co INC | Hugo David Martinez Monroy | — | (805) 864 0057 | Windows, patio, painters | Fillmore · Ventura County | — | — |
| H O N | H O N | — | (818) 468 4603 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |