| Chbb INC | Jonathan Dennis Jackson | — | (925) 695 6011 | Other | Dublin · Alameda County | — | — |
| Chen Construction | Chen Shanglian | — | (510) 356 8595 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Chen's Construction Co | Chen Yongguang | — | (408) 655 9488 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Cheng Design And Construction INC | Fu-Tung Cheng | — | (510) 849 3272 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Cheng's Mechanical Contractor | Cheng's Mechanical Contractor | — | (415) 806 3856 | HVAC | Castro Valley · Alameda County | — | — |
| Chengco INC | Peter Yuk-Ming Cheng | — | (510) 333 0428 | Electricians | Oakland · Alameda County | — | — |
| Chenguan Construction LLC | Alex Min | — | (650) 863 7995 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Cheyenne Plumbing Company | Clinton Jay Walker | — | (510) 520 3815 | Other | Alameda · Alameda County | — | — |
| Chi Construction Company | Chi Sooil | — | (510) 727 9833 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Chibante Lock N Video Services | Guy Anthony Chibante | — | (510) 610 5477 | Other | San Leandro · Alameda County | — | — |
| Chico Trenchless Co | Valenzuela-ortiz Juan | — | (510) 415 5824 | Other | Hayward · Alameda County | — | — |
| Chief's Refrigeration Air | Chief's Refrigeration Air | — | (510) 701 4631 | HVAC | Oakland · Alameda County | — | — |
| Chin Construction Company | Chin Chuan Su | — | (510) 463 7316 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Chinampa Roofing | Jacob Mendozazapien | — | (510) 544 9650 | Other roofers | Oakland · Alameda County | — | — |
| Chiral Design Build INC | Dylan Kahlil Arrants | — | (808) 386-4666 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Choice Telecom Solutions LLC | Bryan Jeffrey West | — | (925) 556 3400 | Other | Dublin · Alameda County | — | — |
| Chongxin Construction | Nian Yan | — | (408) 687 5111 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Chosen Prime Construction INC | Bermudes Alfredo Ortiz | contact@chosenprimeconstruction.com | (510) 417 1466 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| Chou Property Management Corp | Junia Puti Chou | — | (510) 415 8688 | GC, remodel, ADU | Union City · Alameda County | — | — |
| Chow Engineering INC | Reuben Horatio Chow | — | (510) 636 8500 | Other | Oakland · Alameda County | — | — |
| Chrichael INC DBA J B Townsend Painting | Elizabeth Ann Reyes | — | (925) 817 8659 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Chris Bianchi Construction | Christopher Charles Bianchi | — | (510) 377 5245 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Chris Levering Heating & Air Conditioning | Christopher Thomas Levering | — | (510) 352 1018 | HVAC | San Leandro · Alameda County | — | — |
| Chris Mccracken | Chris Mccracken | — | (415) 370 2096 | Electricians | Alameda · Alameda County | — | — |
| Chris Pool Service | Christopher Mc Elhiney Martinez | — | (510) 508 3152 | Pool | Dublin · Alameda County | — | — |
| Chris Williams Plastering INC | Christopher Paul Williams | — | (510) 501 5986 | Other | Oakland · Alameda County | — | — |
| Chris' Plumbing INC | Chris Kujat | info@chrisplumbing.com | (510) 346 8402 | HVAC | Hayward · Alameda County | — | — |
| Chrisp Company | Robert Paul Chrisp | — | (510) 656 2840 | Other | Fremont · Alameda County | — | — |
| Christiansen Construction | Mark Alan Christiansen | — | (925) 606 1273 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| Christine Nguyen | Christine Nguyen | christinetnguyen@outlook.com | (408) 900 6879 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| Christopher Emanuel Del Rosario | Christopher Emanuel Del Rosario | — | (510) 427 8310 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Christopher Field Construction | Christopher John Field | — | (925) 786 2752 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| Christopher Lack Fine Gardening And Landscaping | Lack Christopher | — | (510) 409 7041 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Christopher Lee Builder | Christopher Lee Builder | — | (510) 773 0551 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Christopher Orr | Christopher Orr | info@christopherorr.com | (510) 517 0493 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Chrisum Electric | Samuel Rangel Caratachea | — | (510) 552 7987 | Electricians | Fremont · Alameda County | — | — |
| Chronos Automatic Fire Protection INC | Manuel Neftali Valdez Perez | — | (619) 633 8480 | Other | Oakland · Alameda County | — | — |
| Chu's Construction Co | Chu Michael | — | (510) 759 3153 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Chu's Construction Co | George The Chu | — | (510) 407 8979 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Chuanfu Constructions | Gezhi Weng | — | (510) 542 8000 | GC, remodel, ADU | Piedmont · Alameda County | — | — |