| C And R Pools Service & Repair | Carlo Robert Smith | — | (805) 276 6324 | Pool | Simi Valley · Ventura County | — | — |
| C B Construction | Carey Lee Brough | — | (805) 304 3273 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| C Buck Construction | Matthew Christopher Buck | — | (805) 798 3083 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| C C Co | Albert Eliseo Comisari | — | (805) 657 4768 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| C C Deck Surfaces INC | William Joy Jr Batelaan | — | (805) 351 5273 | Other | Oxnard · Ventura County | — | — |
| C C S Communications INC | Michael Toshiyuki Tanaka | — | (310) 748 7818 | Electricians | Camarillo · Ventura County | — | — |
| C Carson Construction INC | Christopher E Carson | — | (805) 573 9824 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| C Cook Concrete INC | Charles Allen Cook | — | (805) 405 4171 | Other | Simi Valley · Ventura County | — | — |
| C D A INC | Frederick Morris Jordan | — | (805) 388 7623 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| C D H INC | Craig Matthew Mc Cracken | — | (805) 499 3239 | Other | Ventura · Ventura County | — | — |
| C D Lyon INC | Kiki Christina Lyon | — | (805) 653 0173 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| C F C | Jose Francisco Gonzalez | — | (805) 844 4285 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| C F X Construction INC | Bret Russell Burcar | — | (805) 523 2483 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| C G S Custom Glass Specialists | Yang Tom | — | (805) 577 8829 | Windows, patio, painters | Simi Valley · Ventura County | — | — |
| C J C Electric | Chad Jordon Chiapuzio | — | (805) 908 1120 | Electricians | Newbury Park · Ventura County | — | — |
| C J Mcleod Construction | Charles John Mcleod | — | (805) 501 1996 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| C J R Drywall | C J R Drywall | — | (805) 607 4019 | Other | Oxnard · Ventura County | — | — |
| C J Tietz Tri County Building & Maintenance | Clifford John Tietz | — | (805) 432 5773 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| C J Warme INC DBA Totally Wired Electric | Christopher John Warme | — | (818) 889 1229 | Electricians | Westlake Village · Ventura County | — | — |
| C J West Roofing | Christopher Wayne Johnson | — | (805) 300 5972 | Other roofers | Thousand Oaks · Ventura County | — | — |
| C L D | C L D | — | (805) 496 4784 | Windows, patio, painters | Thousand Oaks · Ventura County | — | — |
| C L S Construction | Craig Allen Spellman | — | (805) 527 3468 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| C M Flooring | C M Flooring | — | (818) 335 7383 | Other | Fillmore · Ventura County | — | — |
| C M T Electric | Christopher Michael Toomey | — | (805) 558 5368 | Electricians | Moorpark · Ventura County | — | — |
| C N Plumbing A Partnership | Ernst Siegfried Aschacher | — | (805) 208 3710 | Other | Simi Valley · Ventura County | — | — |
| C P F Masonry | C P F Masonry | cpfman11@gmail.com | (805) 402 4211 | Other | Thousand Oaks · Ventura County | — | — |
| C P General Remodeling Construction Co | Cesar Edgardo Posada | — | (818) 648 3113 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| C R Electric | Rodriguez Cain | — | (805) 890 4212 | Electricians | Oxnard · Ventura County | — | — |
| C R I Landscape & Concrete INC | Joseph Michael Corsentino | — | (805) 207 3629 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| C S Construction | Carey Adam Silverman | — | (805) 797 6547 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| C S Construction | Chad Carl Stebbins | — | (805) 304 1814 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| C S R | C S R | — | (805) 402 8453 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| C S Willis Construction | Craig Scott Willis | — | (805) 630 8298 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| C Santos Construction INC | Santos Carlos Garcia-aguilar | — | (805) 910 6115 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| C Stephenson & Sons INC | Christopher Roy Stephenson | — | (805) 376 2494 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| C W Custom Woodwork | C W Custom Woodwork | — | (805) 844 5088 | Other | Ventura · Ventura County | — | — |
| C W Warren Framing INC | Clifton Wayne Warren | clif@cwwarrenframing.com | (805) 482 1383 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| C X C Contracting INC | Wilbur Clark Iii Crawford | will@cxccontracting.com | (805) 250-9709 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| C Y V E F Plastering | Pena Fidel | — | (805) 302 6317 | Other | Oxnard · Ventura County | — | — |
| C&g Glass Partners INC | Jason Charles Glover | candgglasspartners@gmail.com | (805) 248 3003 | Windows, patio, painters | Somis · Ventura County | — | — |