| Celiceo Mechanical Services | Roberto Iii Celiceo | spannell@whitemechanical.com | (619) 764 2068 | HVAC | Escondido · San Diego County | — | — |
| Celio's Landscaping | Celio's Landscaping | — | (619) 646 7247 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Celsius Mechanical | Celsius Mechanical | steved@precision-ac.com | (619) 488 7704 | HVAC | San Diego · San Diego County | — | — |
| Celtic Kitchens Remodeling | Mcgeever Alan | aqremodeling2@gmail.com | (619) 560 1166 | GC, remodel, ADU | National City · San Diego County | — | — |
| Celtic Land - Care | Frank Brian Glynn | — | (760) 271 7509 | Windows, patio, painters | Carlsbad · San Diego County | — | — |
| Cement Cutting INC | John Matthew Becker | contact@cementcutting.com | (619) 231 1735 | Other | San Diego · San Diego County | — | — |
| Cementrix INC | Anthony Robert Du Bois | — | (619) 670 3460 | Windows, patio, painters | La Mesa · San Diego County | — | — |
| Centaur General Engineering INC | Selina Caroline Canady-mcnulty | — | (619) 572 5497 | Other | Alpine · San Diego County | — | — |
| Center Glass Co No 3 | David Clark Lawrenz | — | (619) 469 6181 | Windows, patio, painters | La Mesa · San Diego County | — | — |
| Center Home Improvement LLC | Luc Emil Neesby | support@centerhomeimprovement.com | (760) 443 1219 | GC, remodel, ADU | San Marcos · San Diego County | — | — |
| Center Septic | Kenyon Donald Lindquist | — | (760) 749 0402 | Other | Valley Center · San Diego County | — | — |
| Centerline Commercial Assemblies | Hayley Dawn Piro | — | (858) 883 4024 | Other | Poway · San Diego County | — | — |
| Centerline Pacific Builders INC | Manuel Luna | — | (619) 206 9544 | GC, remodel, ADU | San Ysidro · San Diego County | — | — |
| Centerline Plumbing & Mechanical INC | Micah Anthony Cottrell | — | (619) 807 0925 | Other | San Diego · San Diego County | — | — |
| Centerpoint Construction Services INC | Michael Lee Williams | — | (619) 869 8000 | GC, remodel, ADU | Santee · San Diego County | — | — |
| Centex Glazing INC | Jeffrey Lyle Wischmeyer | — | (619) 644 1981 | Windows, patio, painters | Spring Valley · San Diego County | — | — |
| Central Electric | Frank Uribe Chavez | — | (760) 601 0424 | Electricians | Oceanside · San Diego County | — | — |
| Central Heating & Air Conditioning | Central Heating & Air Conditioning | — | (619) 444 9950 | HVAC | El Cajon · San Diego County | — | — |
| Central Vac Systems | Capuano Rosario | — | (858) 560 8228 | Other | Escondido · San Diego County | — | — |
| Centrex Data Corporation | Dylan Michael Natter | info@centrexit.com | (619) 651-8700 | Other | Poway · San Diego County | — | — |
| Centric Building Services INC | Tyler Chase Rogers | — | (619) 871 1445 | GC, remodel, ADU | La Mesa · San Diego County | — | — |
| Centuries Tile & Marble | Centuries Tile & Marble | — | (619) 200 1464 | Other | Spring Valley · San Diego County | — | — |
| Centurion Builders LLC | Christopher Victor Tirrito | — | (631) 707 4363 | GC, remodel, ADU | Encinitas · San Diego County | — | — |
| Centurion California LLC | Dennis Raymond Brakenbury | dbrakenbury@centurionsd.com | (760) 579 2019 | Other | Santee · San Diego County | — | — |
| Centurion San Diego INC | Dennis Raymond Brakenbury | — | (760) 579 2019 | Other | Santee · San Diego County | — | — |
| Century Painting Corporation | Escalera Arturo | — | (858) 536 8123 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Century Raingutters | Century Raingutters | — | (619) 757 0155 | Other | Spring Valley · San Diego County | — | — |
| Ceo Home Builders INC | Curtis Edward Osburn | — | (760) 533 0183 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Ceramic And Stone Creations INC | Mary Lynn Kennedy | — | (858) 560 5401 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Ceramic Pro Elite San Diego | Ceramic Pro Elite San Diego | — | (619) 210-0988 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Ceramic Tile And Stone Consultants INC | Patricia Lynette Pompo | — | (619) 669 2967 | Other | Jamul · San Diego County | — | — |
| Cerano Construction Company | Victor Hugo Lopez | — | (760) 877 9433 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Cerby's Landscaping | Cerby's Landscaping | — | (760) 520 4382 | Windows, patio, painters | Vista · San Diego County | — | — |
| Cerebral Construction | Nathaniel Joseph Martinez | — | (619) 573 3342 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| Cermak Construction | Robert Francis Cermak | — | (619) 339 3774 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Cerrco INC | Joshua Jeremaine Middleton | info@cerrco.com | (706) 453 1679 | Electricians | San Marcos · San Diego County | — | — |
| Certapro Painters Of East San Diego/poway | Certapro Painters Of East San Diego/poway | — | (858) 859-4155 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Certapro Painters Of La Jolla And Central San Diego | Certapro Painters Of La Jolla And Central San Diego | lajolla@certapro.com | (800) 462-3782 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Certex Construction | Michael Jacob Waters | — | (619) 348 7319 | GC, remodel, ADU | Chula Vista · San Diego County | — | — |
| Certified Arborcare | Certified Arborcare | — | (858) 272 1566 | Tree | San Diego · San Diego County | — | — |