| Cabinets And Cupboards INC | Braden Shawn Retherford | sales@cabinets-cupboards.com | (760) 961 8208 | Other | Apple Valley · San Bernardino County | — | — |
| Cable Brothers INC | Gonzalo Mendez | — | (909) 899 6475 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Cable Tech Pros INC | Brian Mickas | info@cabletechpros.com | (310) 678 8008 | Other | Phelan · San Bernardino County | — | — |
| Cabral & Company INC | Michael Cabral | firstname@cabral.com | (909) 445 1411 | Other | Chino Hills · San Bernardino County | — | — |
| Cabrera Construction | Cabrera Paul | — | (909) 615 4632 | GC, remodel, ADU | Bloomington · San Bernardino County | — | — |
| Cadre Construction LLC | Michael Christian Harrison | — | (818) 497 7342 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| Caforio Development Group LLC | Christopher Ross Caforio | — | (909) 681 3435 | Electricians | Oak Hills · San Bernardino County | — | — |
| Cai Fall Protection Systems | Prajesh Naranbhai Kavia | — | (951) 465 7386 | Other | Ontario · San Bernardino County | — | — |
| Caillouet Construction Co | Brian Glenn Caillouet | — | (760) 985 3742 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |
| Caislee & Hitch Remodeling | Caislee & Hitch Remodeling | — | (951) 498 1560 | GC, remodel, ADU | Highland · San Bernardino County | — | — |
| Cajon Concrete Construction INC | Vincen Candido Vicario | — | (760) 244 0210 | Other | Oak Hills · San Bernardino County | — | — |
| Cajon Construction | Stephen Joseph Thurman | — | (909) 312 1915 | GC, remodel, ADU | Redlands · San Bernardino County | — | — |
| Cal - Air Heating + Cooling | Kunz Brent | — | (909) 965 7687 | HVAC | Redlands · San Bernardino County | — | — |
| Cal - Counties Fire Protection Company | Tom Guy Del Monte | — | (909) 608 2097 | Other | Upland · San Bernardino County | — | — |
| Cal - Line Construction INC | Jesus Enrique Carrillo-Escobedo | — | (424) 224 3417 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| Cal - Lite Concrete | Rolf Deiter Suekert | — | (626) 641 5113 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Cal - Therm INC | Brian Campbell | proteam@mopro.com | (562) 430 7524 | Other | Chino · San Bernardino County | — | — |
| Cal 1 Construction INC | Juan Armando Esquivel | — | (909) 721 4759 | GC, remodel, ADU | Chino · San Bernardino County | — | — |
| Cal Asphalt Coatings INC | Brian Christopher Brown | — | (760) 468 1300 | Other | Chino · San Bernardino County | — | — |
| Cal Build Construction | James Cyril Bluth | — | (951) 764 3958 | Electricians | Lake Arrowhead · San Bernardino County | — | — |
| Cal City Painting | Cal City Painting | — | (760) 503 9144 | Windows, patio, painters | Apple Valley · San Bernardino County | — | — |
| Cal Craft Pools | Cal Craft Pools | — | (909) 927 1507 | Pool | Highland · San Bernardino County | — | — |
| Cal Custom Professional Landscape | Cal Custom Professional Landscape | — | (760) 947 6261 | Windows, patio, painters | Oak Hills · San Bernardino County | — | — |
| Cal Dreamscape Landscape Co | Kenneth Carl Reed | caldreamscape@att.net | (951) 778 2674 | Windows, patio, painters | Grand Terrace · San Bernardino County | — | — |
| Cal Finish | Caroline Sue Sherwood | — | (909) 744 7009 | Other | Redlands · San Bernardino County | — | — |
| Cal Home Run | Cal Home Run | — | (909) 528 4200 | HVAC | Redlands · San Bernardino County | — | — |
| Cal Play Services INC | Brad Everett Rhoads | — | (909) 519 0574 | Other | Upland · San Bernardino County | — | — |
| Cal Prime Glass | Theresa Rae Lira | calprimeglass@outlook.com | (714) 732-1027 | Windows, patio, painters | Rancho Cucamonga · San Bernardino County | — | — |
| Cal Pro Renovations | Gaxiola Art | — | (909) 910 2720 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Cal Pros Renovation & Construction INC | Juan Zarate | — | (909) 262 4469 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Cal Roofing Co & Cal General Construction INC | Miguel A Morales Hernandez | — | (909) 763 0601 | Other roofers | Hesperia · San Bernardino County | — | — |
| Cal State Construction Services INC | Lugo Adalberto | — | (855) 611 4460 | GC, remodel, ADU | Chino · San Bernardino County | — | — |
| Cal Stripe INC | Rudy Christopher Zavalani | — | (909) 884 7170 | Other | Colton · San Bernardino County | — | — |
| Cal West Construction | Thomas Willam Sutera | — | (714) 269 9072 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Cal-co: A Drywall Company | Jesse Armando Calderon | — | (760) 792 6015 | Other | Adelanto · San Bernardino County | — | — |
| Cal-Remodeling | Cal-Remodeling | — | (909) 780-5127 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Cal-star Roofing | Arturo Cadillo Garcia | — | (909) 428 1898 | Other roofers | Fontana · San Bernardino County | — | — |
| Cal-west Plumbing | Cal-west Plumbing | — | (909) 709 3671 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| Calcomm Systems INC | Wes Lee Tate | support@calcommsystems.com | (909) 798 8829 | Other | Redlands · San Bernardino County | — | — |
| Calcor Construction Co | David Chol Kim | — | (714) 944 0001 | GC, remodel, ADU | Chino Hills · San Bernardino County | — | — |