| Carlos Hernandez | Carlos Hernandez | — | (805) 304 7060 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Carlos Jerez | Carlos Jerez | — | (805) 630 9906 | GC, remodel, ADU | Somis · Ventura County | — | — |
| Carlos Luz Villanueva | Carlos Luz Villanueva | — | (805) 558 3637 | Other | Port Hueneme · Ventura County | — | — |
| Carmen Rain Tunnel | Carmen Rain Tunnel | — | (805) 383 6049 | Electricians | Camarillo · Ventura County | — | — |
| Carmona Plumbing INC | Edward John Carmona | info@carmonaplumbing.com | (805) 814 5407 | Other | Oxnard · Ventura County | — | — |
| Carpenters West Construction | Kory Glenn Carpenter | — | (805) 331 0601 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Carpetino | Florentino Garcia Cabrera | — | (805) 487 0017 | Other | Oxnard · Ventura County | — | — |
| Carrera Plastering INC | Carrera Jose | — | (805) 794 1697 | Other | Fillmore · Ventura County | — | — |
| Carrillo Electric | Alexandro Jesus Carrillo | lemonad@jovanny.ru | (805) 285 1434 | Electricians | Oxnard · Ventura County | — | — |
| Carrillo Roofing LLC | Zamora Margarito Carillo | info@carrilloroofing.com | (805) 732-1233 | Other roofers | Oxnard · Ventura County | — | — |
| Carrtorr Electric | Carrillo Perez Leopoldo | — | (805) 451 4606 | Electricians | Ventura · Ventura County | — | — |
| Carson Homes Construction INC | Carson Lee Ludwig | — | (805) 402 0402 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| Cary N Hansen INC DBA Hansen's Plumbing | Cary Nelson Hansen | — | (805) 701 1858 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Cary R Klein DBA C & J Development Co | Cary Reynold Klein | — | (805) 389 3156 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Cas Development INC | Cesar Armando Saldana | — | (310) 291 3127 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Casanova's Custom Hardwood Flooring | Casanova's Custom Hardwood Flooring | — | (805) 660 7759 | Other | Thousand Oaks · Ventura County | — | — |
| Cascade Drapery And Shades | Cascade Drapery And Shades | — | (805) 416 3477 | Other | Thousand Oaks · Ventura County | — | — |
| Case Engineering And Laboratory Incorporated | Brittian William Bowman | — | (805) 654 8555 | Other | Ventura · Ventura County | — | — |
| Casey Lester Mc Coy | Casey Lester Mc Coy | — | (818) 874 3872 | Other | Westlake Village · Ventura County | — | — |
| Casillas General Construction INC | Pedro Casillas | — | (805) 624 0694 | GC, remodel, ADU | Fillmore · Ventura County | — | — |
| Casitas Builders Incorporated | Donnie Jean Boyd | — | (805) 320 2209 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| Cast Stone & Design | Cast Stone & Design | — | (818) 264 9411 | Other | Simi Valley · Ventura County | — | — |
| Casta Construction INC | Walter Manuel Castaneda | info@castaconstruction.com | (818) 871 9694 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Castle Air INC | Matthew Nathan Mc Kee | — | (805) 445 8237 | HVAC | Camarillo · Ventura County | — | — |
| Castle Building & Development INC | David Bickford Maddux | — | (805) 302 8598 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Castle Painting | Castle Painting | — | (805) 338 7516 | Windows, patio, painters | Moorpark · Ventura County | — | — |
| Castleby Construction LLC | Scott William Umpleby | — | (805) 427 5250 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Castro Canvas Designs INC | Juan Christopher Castro | info@castrocanvasdesigns.com | (805) 758 0076 | Other | Oxnard · Ventura County | — | — |
| Castro's HVAC | Castro's HVAC | — | (818) 309 3157 | HVAC | Thousand Oaks · Ventura County | — | — |
| Cat In A Hammock | Kristina Victorovna Jones | — | (805) 263 4200 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Catak Pools | Michael Robert Smith | — | (805) 317 6484 | Pool | Simi Valley · Ventura County | — | — |
| Cda Builders INC | Chad David Anderson | credit@cdabuilders.com | (805) 857 0692 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Ce Remodeling And Construction | Carlos Renato Espinola Ramirez | — | (805) 377 2163 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Cebuana Construction INC | Douglas Marshall Blow | luciano@latinotype.com | (619) 731 2358 | Electricians | Oak View · Ventura County | — | — |
| Ceci Clarke INC | Ceci Clarke | — | (805) 342 0200 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Cedro Construction INC | Andrzej Cedro | cedroconstruction@outlook.com | (805) 525 0599 | Other | Santa Paula · Ventura County | — | — |
| Celebrity Air INC | Scott Robert Ganz | — | (805) 552 6535 | HVAC | Simi Valley · Ventura County | — | — |
| Cellar Masters | Jordan Charles Berry | — | (805) 375 5040 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Celtic Communications INC | Donal Joseph Brown | — | (805) 584 3144 | Other | Simi Valley · Ventura County | — | — |
| Celtic Masonry Construction | Michael Martin White | — | (805) 218 4120 | Other | Camarillo · Ventura County | — | — |