| Cienfuegos Consulting | Cienfuegos Consulting | info@cienfuegosconsulting.com | (805) 506 9059 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Cima Roofing INC | Gonzalo Orozco | contact@cimaroofing.com | (805) 670 2354 | Other roofers | Oxnard · Ventura County | — | — |
| Cirocco Plastering | Joseph Christopher Cirocco | — | (805) 390 2145 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Citrus Fresh Construction | Amit Mor | — | (888) 446 7146 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| Cj Sunrise Construction INC | Juan Carlos Moreno | — | (805) 276 0426 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Cje Construction | Cody Jeffrey Edgar | — | (805) 906 9178 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Cjj Builders | Carla Vanessa Jones | — | (310) 596 9190 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Cjs Woodworking And Design INC | Sheridan Charles | — | (805) 526 9100 | Other | Simi Valley · Ventura County | — | — |
| Claridge Construction INC | Joseph Randall Claridge | — | (805) 857 9795 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Clark & Sons Aire INC | Joseph Lee Acosta Clark | — | (805) 607 6443 | HVAC | Ventura · Ventura County | — | — |
| Clark & Sons Concrete | Kent Albert Sr Clark | — | (805) 583 0480 | Other | Simi Valley · Ventura County | — | — |
| Clark Construction | John Knowles Clark | — | (805) 320 0293 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Clark Custom Tile And Stone | Clark Custom Tile And Stone | — | (805) 630 6354 | Other | Thousand Oaks · Ventura County | — | — |
| Clark Drywall Incorporation | Matthew James Clark | — | (805) 620 0959 | Other | Ventura · Ventura County | — | — |
| Clark Engineering Construction INC | Amy B Clark | — | (805) 643 8119 | Other | Santa Paula · Ventura County | — | — |
| Classic Construction | Oscar Honorio Lopez Dominguez | — | (805) 906 9577 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| Classic Tub Repairs | Timothy Joseph Geary | — | (805) 275 3040 | Other | Camarillo · Ventura County | — | — |
| Classic Woodtones INC | Franklin Dennis Lucena | — | (206) 963 9251 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Claude A D'souza | Claude A D'souza | — | (805) 300 1514 | HVAC | Thousand Oaks · Ventura County | — | — |
| Claudio Rosas | Claudio Rosas | — | (805) 338 2458 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Clay Commercial Security | Clay Commercial Security | info@claycommercialsecurity.com | (805) 312 5538 | Alarm and generators | Camarillo · Ventura County | — | — |
| Clean Concepts Landscape And Hardscape | Richard Dennis Melton | — | (805) 279 7690 | Windows, patio, painters | Moorpark · Ventura County | — | — |
| Clean Cut Painting | Clean Cut Painting | — | (805) 216 1873 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Clean Edge Landscape INC | Omar Alex Munguia | — | (805) 443 1392 | Windows, patio, painters | Oxnard · Ventura County | — | — |
| Clean Lines Remodel Construction | Michael James Olmstead | — | (805) 263 5062 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Cleanline Plumbing INC | Tyler Joseph Gillmore | — | (805) 331 1176 | Other | Ventura · Ventura County | — | — |
| Clear Conceptz Enterprises INC | Brandon James Martin | — | (805) 200 8360 | Pool | Westlake Village · Ventura County | — | — |
| Clear Pipe Plumbing | Clear Pipe Plumbing | — | (805) 651 7522 | Other | Ventura · Ventura County | — | — |
| Clear Reflections Pool And Spa Maintenance | Jerry Lee Mc Lain | — | (805) 218 5871 | Pool | Ventura · Ventura County | — | — |
| Clear View Glassworks LLC | Kevin Zavaleta | — | (805) 393 3116 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Clear Vision Construction | Rivera Alan | — | (805) 832 3394 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| Clear Vision Windows Glass & Mirror | Richard Joseph Garcia | — | (805) 477 9777 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Clear Water Concepts | Clear Water Concepts | — | (818) 335 0855 | Pool | Simi Valley · Ventura County | — | — |
| Clearsky Roofing LLC | Giovani Gorospe | — | (805) 864 1716 | Other roofers | Simi Valley · Ventura County | — | — |
| Clearview Construction | Forrest Gregory Morgan | — | (805) 561 4470 | GC, remodel, ADU | Santa Paula · Ventura County | — | — |
| Clearwater Pool Service | Philip Irvin Pauling | — | (805) 236 7317 | Pool | Camarillo · Ventura County | — | — |
| Clemente's Painting | Clemente's Painting | — | (805) 587 7944 | Windows, patio, painters | Simi Valley · Ventura County | — | — |
| Cleveland Development | Cleveland Development | — | (805) 279 9171 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Cleveland S Coffee | Cleveland S Coffee | — | (805) 807 9041 | HVAC | Thousand Oaks · Ventura County | — | — |
| Client Service Builders | Christopher Ryan Murphy | info@clientservicebuilders.com | (951) 662 8796 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |