| Crown Plumbing | Crown Plumbing | — | (408) 210 9500 | Other | San Jose · Santa Clara County | — | — |
| Crs Commercial Refrigeration Solution INC | Naseer Mahdi Mahbouba | — | (408) 605 4895 | HVAC | Los Gatos · Santa Clara County | — | — |
| Cruz Alvarez | Cruz Alvarez | — | (408) 857 0706 | Other | Milpitas · Santa Clara County | — | — |
| Cruz Collaborative Construction LLC | Jonathan Molina Cruz | — | (510) 301 5537 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Crw Development INC | Robert Ross Iii Walker | — | (408) 605 6700 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Crystal Clear Communications | Crystal Clear Communications | — | (408) 971 0632 | Other | San Jose · Santa Clara County | — | — |
| Crystal Clear Pool Maintenance | Crystal Clear Pool Maintenance | — | (831) 479 8376 | Pool | Sunnyvale · Santa Clara County | — | — |
| Cs Electric Solutions INC | Caio Cesar Sporkens Mil Silva | — | (669) 212 1958 | Electricians | San Jose · Santa Clara County | — | — |
| Csc Construction | Chang Chouansong | — | (408) 499 8076 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Csci Construction | Csci Construction | — | (408) 900-6610 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| Csiav | Jeffrey Charles Crawford | — | (408) 309 6031 | Other | Sunnyvale · Santa Clara County | — | — |
| Cube Construction INC | Zaur Mukhamedovic Bolokov | — | (408) 701 7566 | Electricians | Sunnyvale · Santa Clara County | — | — |
| Cudahy Jr Electric | Cudahy Patrick Flautt Jr | — | (408) 590 6508 | Electricians | San Jose · Santa Clara County | — | — |
| Culpepper-unlimited | Carl R Thomas | — | (408) 887 0079 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Cummings Construction | Gregory Allen Cummings | — | (408) 396 3192 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| Cunningham's Air Systems | Cunningham's Air Systems | — | (408) 283 0840 | HVAC | San Jose · Santa Clara County | — | — |
| Cupertino Electric INC | Peter Josef Marsiguerra | — | (408) 808 8000 | Electricians | San Jose · Santa Clara County | — | — |
| Cupertino Green Construction | Joseph Paul | — | (408) 386 5400 | GC, remodel, ADU | Cupertino · Santa Clara County | — | — |
| Cupertino Plumbing INC | Frank Leonard Cardia | — | (408) 253 0618 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| Cupertino Roofing INC | Dave Paul Smith | — | (408) 973 9427 | Other roofers | San Jose · Santa Clara County | — | — |
| Curiel Builder | Curiel Builder | — | (408) 375 9056 | GC, remodel, ADU | East Palo Alto · Santa Clara County | — | — |
| Curiel Concrete Construction | Isidro Jr Curiel | icuriel6@hotmail.com | (408) 624 7026 | Other | San Jose · Santa Clara County | — | — |
| Currie Contracts | Currie Contracts | — | (408) 532 6176 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Curry Brothers Tree Care | Curry Brothers Tree Care | — | (408) 823 6430 | Tree | Los Gatos · Santa Clara County | — | — |
| Curtis Horticulture INC | Stephanie Danielle Curtis | — | (408) 280 7339 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Custer Samuel L | Custer Samuel L | — | (650) 567 0016 | Other | Mountain View · Santa Clara County | — | — |
| Custom Builder And Remodeling | Custom Builder And Remodeling | — | (408) 234 4658 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Custom Commercial Painting INC | Crispin Solorio Perez | — | (925) 733 5534 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Custom Concrete Resurfacing INC | Rick Edward Koehler | — | (408) 227 8716 | Other | San Jose · Santa Clara County | — | — |
| Custom Drywall INC | Eugene Raymond Cox | — | (408) 263 1616 | Windows, patio, painters | Milpitas · Santa Clara County | — | — |
| Custom Fit Closet Systems INC | Vasquez Pablo Sainos | — | (408) 679 8840 | Other | Campbell · Santa Clara County | — | — |
| Custom Fit Solutions Door Company | Walter Adam Harper | — | (650) 967 3572 | Other | Mountain View · Santa Clara County | — | — |
| Custom Home Builder | Custom Home Builder | — | (408) 645 8283 | GC, remodel, ADU | Sunnyvale · Santa Clara County | — | — |
| Custom Home Investment INC | Derek Pham Vu | — | (408) 313 5863 | Other roofers | San Jose · Santa Clara County | — | — |
| Custom Hot Mop INC | Matthew Damon Hathaway | info@customhotmop.com | (408) 661 4921 | Other | Gilroy · Santa Clara County | — | — |
| Custom One INC | Gary Allen Walton | support@customone.com | (408) 847 8197 | GC, remodel, ADU | Morgan Hill · Santa Clara County | — | — |
| Custom Remodeling & Finishes | Custom Remodeling & Finishes | — | (650) 630 0918 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Custom Residential Painting | Custom Residential Painting | — | (650) 290 1890 | Windows, patio, painters | East Palo Alto · Santa Clara County | — | — |
| Custom Scaffold | Paul Daniel Michaelsen | — | (408) 934 9855 | Other | Alviso · Santa Clara County | — | — |
| Custom Tile And Stone INC | Jessie Michael Alvarez | — | (408) 476 3577 | Other | Gilroy · Santa Clara County | — | — |