| C G Complete Drywall INC | Carlos Albert Goulart | — | (408) 203 0163 | Other | San Jose · Santa Clara County | — | — |
| C G Concrete | C G Concrete | cgconcrete@gmail.com | (408) 499 4467 | Other | San Jose · Santa Clara County | — | — |
| C G Construction | Charles Richard Jr Chapman | — | (408) 410 7774 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| C G Hardwood Floors | C G Hardwood Floors | — | (408) 649 1722 | Other | San Jose · Santa Clara County | — | — |
| C G Window Fashions | C G Window Fashions | — | (510) 710 0569 | Other | San Jose · Santa Clara County | — | — |
| C G Wiring & Integrators INC | Christian Deven Griffin | — | (408) 856 4424 | Other | San Jose · Santa Clara County | — | — |
| C H Construction | Carl Lester Jr Henn | — | (408) 438 8889 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| C H Hardwood Floors | C H Hardwood Floors | — | (408) 826 1714 | Other | San Jose · Santa Clara County | — | — |
| C H Reynolds Electric INC | Charles Henry Reynolds | — | (408) 436 9280 | Electricians | San Jose · Santa Clara County | — | — |
| C K Electric | Kim Choong Gi | — | (408) 497 0062 | Electricians | San Jose · Santa Clara County | — | — |
| C K L Construction INC | Cortland Clare Lanning | — | (408) 244 7042 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| C K M Painting | C K M Painting | — | (408) 394 6198 | Windows, patio, painters | Sunnyvale · Santa Clara County | — | — |
| C L A P Construction INC | Walters Philip | — | (650) 248 8729 | HVAC | Mountain View · Santa Clara County | — | — |
| C L S Landscaping Services | Timothy Meyer Gonzales | — | (510) 657 4738 | Windows, patio, painters | Santa Clara · Santa Clara County | — | — |
| C L Sigler & Associates | Christopher Lawrence Sigler | — | (408) 922 0262 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| C M C Construction | Chuck Hoan Huynh | — | (408) 838 4831 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| C M Farias Construction INC DBA Cmf Construction INC | Carlos Manuelaguiar Farias | — | (408) 210 6527 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| C M Granite INC | Cesar A Chavez | — | (408) 569 5166 | Other | San Jose · Santa Clara County | — | — |
| C M Peletz Co | Anne Mary Bushey Madamba | — | (408) 296 8800 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| C M S Plumbing INC | Cory Michael Southerland | — | (408) 828 6700 | Other | Campbell · Santa Clara County | — | — |
| C M Stein Construction Incorporated | Christopher Michael Stein | — | (408) 537 3011 | Other | San Jose · Santa Clara County | — | — |
| C P A Plumbing INC | Cruz Marcial Cruz | — | (650) 669 4802 | Other | Mountain View · Santa Clara County | — | — |
| C P Pro Painting INC | Arroyo Francisco Camacho | — | (408) 841 1332 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| C Perez Roofing INC | Carlos Isai Perez Santiago | — | (510) 303 6607 | Other roofers | Sunnyvale · Santa Clara County | — | — |
| C Pizzo Construction INC | Pizzo Christopher | — | (408) 892 4970 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| C R Custom Carpentry INC | Rodriguez Cesar | — | (408) 593 5688 | Other | San Jose · Santa Clara County | — | — |
| C R Garcia Construction | Carlos Ramiro Garcia | — | (408) 605 3404 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| C R S Drywall INC | Carlos Manuel Silveira | — | (408) 998 4360 | Other | San Jose · Santa Clara County | — | — |
| C S Builder | C S Builder | — | (408) 668 7561 | GC, remodel, ADU | Los Gatos · Santa Clara County | — | — |
| C Stille Excavation | C Stille Excavation | cexcavate@earthlink.net | (408) 781 2731 | Other | Redwood Estates · Santa Clara County | — | — |
| C Stone Construction | Christopher Richard Stone | — | (408) 613 2516 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| C T I Builders Corporation | Kent Jeffrey Shouse | — | (408) 377 0181 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| C V A Builders INC | Valdez Ambriz Celso | scott.cvabuilders@gmail.com | (408) 649 0978 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| C&c Landscaping INC | Antranik Krikor | — | (408) 320 7594 | Windows, patio, painters | Palo Alto · Santa Clara County | — | — |
| C&g Construction Company | Chanchanian Paul | — | (408) 309 0831 | GC, remodel, ADU | Gilroy · Santa Clara County | — | — |
| C's Roofing & Waterproofing INC | Moises Segura Gonzalez | — | (408) 770 7768 | Other roofers | San Jose · Santa Clara County | — | — |
| C1 Electrical LLC | Javanshir Rasullu | — | (408) 582 2328 | Electricians | San Jose · Santa Clara County | — | — |
| C2r Engineering INC | Trevor John Connolly | info@c2rengineering.com | (415) 559 2841 | Other | Mountain View · Santa Clara County | — | — |
| Ca Construction | Carrie Paris Anderson | — | (408) 131 5444 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| Ca Electrical Group 24/7 | Nissim Zanna | — | (669) 260 0712 | Electricians | San Jose · Santa Clara County | — | — |