| Ccr Design And Build | Ccr Design And Build | — | (714) 501 9570 | GC, remodel, ADU | Santa Ana · Orange County | — | — |
| Ccs Facility Services - Orange County INC | Robert D Carlson | — | (303) 733 8997 | HVAC | Costa Mesa · Orange County | — | — |
| Cd Home Construction INC | Hui Juan Sha | — | (949) 668 9912 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Cde Construction Corp | Alfonso Ignacio Cruz Martinez | — | (714) 742 7719 | GC, remodel, ADU | Yorba Linda · Orange County | — | — |
| Cdk Finishes INC Paint & Wallcovering | Christina Domene Knorr | — | (714) 420 6358 | Windows, patio, painters | Placentia · Orange County | — | — |
| Cdm Construction INC | Filip Gjoka | office@cdmconstruction.com | (949) 301 2400 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Cdm Home Remodeling | Cdm Home Remodeling | — | (949) 723 9938 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Cdm Overhead Doors | Cristian Jared Diaz Martinez | — | (714) 737 5111 | Other | Stanton · Orange County | — | — |
| Cdp Builders LLC | Sean Christopher Buran | — | (949) 467 1344 | GC, remodel, ADU | Newport Beach · Orange County | — | — |
| Cds Custom Floors | Pena Salvador Nava | — | (714) 595 4558 | Other | Santa Ana · Orange County | — | — |
| Ce Electric | Ekaphan Chaidoul | — | (562) 547 9700 | Electricians | Yorba Linda · Orange County | — | — |
| Cec Construction Engineering | Sam Victor Thong | — | (949) 954 0024 | Electricians | Huntington Beach · Orange County | — | — |
| Cecal Enterprises INC | Robert George Caronna | — | (949) 380 7100 | GC, remodel, ADU | Laguna Niguel · Orange County | — | — |
| Cecil Baxter Giles | Cecil Baxter Giles | — | (714) 914 2008 | Other | Orange · Orange County | — | — |
| Cedar Tree Construction INC | Grace Mei Hua Cheng | — | (949) 419 4188 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Cedarcreek Plumbing | Cedarcreek Plumbing | — | (714) 504 3437 | Other | Fountain Valley · Orange County | — | — |
| Cedars Enterprises Too INC | Said Riad Khatib | — | (714) 685 0775 | GC, remodel, ADU | Yorba Linda · Orange County | — | — |
| Cedarwood Drywall Restoration | Isaac Serrano | — | (714) 381 1157 | Restoration | Santa Ana · Orange County | — | — |
| Cefalia Development | Cefalia Development | jeff@cefaliadevelopment.com | (949) 697 1955 | GC, remodel, ADU | Costa Mesa · Orange County | — | — |
| Ceiling Concepts Incorporated | Michael John Yuchno | — | (562) 493 8521 | Electricians | Los Alamitos · Orange County | — | — |
| Ceja & Son Hauling And Clean Up | Rigoberto C Ceja | — | (949) 296 5844 | Other | Lake Forest · Orange County | — | — |
| Ceja Landscape | Ceja Landscape | — | (714) 483 9028 | Windows, patio, painters | Santa Ana · Orange County | — | — |
| Cel Electric | Christian Edwin Lajos | — | (714) 932 4720 | Electricians | Anaheim · Orange County | — | — |
| Celie Construction | Frans Pierre Celie | — | (714) 345 5531 | Electricians | Yorba Linda · Orange County | — | — |
| Celio Munoz | Celio Munoz | — | (714) 681 3610 | Other | Anaheim · Orange County | — | — |
| Cella Construction Group INC | Salman Hajitarkhani | — | (949) 371 5549 | GC, remodel, ADU | Laguna Niguel · Orange County | — | — |
| Celoseal Roofing INC | Scott William Bolt | service@celosealroofing.com | (714) 998 2990 | Other roofers | Orange · Orange County | — | — |
| Celta Tile Installations | Celta Tile Installations | — | (949) 466 1294 | Other | Rancho Santa Margarita · Orange County | — | — |
| Celtic Classic Pools LLC | S Thomas Nellesen | — | (714) 231 8954 | Pool | Anaheim Hills · Orange County | — | — |
| Cemco Electric INC | John William Hamo | — | (714) 822 4926 | Electricians | Fullerton · Orange County | — | — |
| Centerline Oil Spreading INC | Ryan Douglas Simpkins | — | (714) 390 7715 | Other | Anaheim · Orange County | — | — |
| Centerline Signs | Centerline Signs | — | (562) 618 3707 | Other | Seal Beach · Orange County | — | — |
| Centerpoint Communications | Centerpoint Communications | info@cpoint1.net | (714) 663 1133 | Electricians | Yorba Linda · Orange County | — | — |
| Centerpoint Communications INC | Jonothan Levi Nelms | info@cpoint1.net | (714) 663 1133 | Electricians | Yorba Linda · Orange County | — | — |
| Centerset Plumbing INC | Anthony Jacob Jr Cabral | — | (714) 699 6473 | Other | Buena Park · Orange County | — | — |
| Central Air INC | Faramarz| Saffa Ri Frank Saffari | info@centralair.com | (949) 800 0808 | HVAC | Irvine · Orange County | — | — |
| Central Enterprises | Aurea Griffith | — | (714) 692 8272 | Other | Anaheim · Orange County | — | — |
| Central Hardwood Floors | Central Hardwood Floors | — | (714) 225 6618 | Other | Brea · Orange County | — | — |
| Central O C Pools INC | Michael Ryan Gary | — | (949) 939 5397 | Pool | Santa Ana · Orange County | — | — |
| Central Pacific Design/build | Central Pacific Design/build | — | (714) 719 4558 | GC, remodel, ADU | Garden Grove · Orange County | — | — |