| Caoba Construction INC | Hernandez Isael Castro | — | (510) 575 1266 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Capital City Plumbing INC | Jimmie Bernard Vargo | — | (209) 406 3663 | Other | Lodi · San Joaquin County | — | — |
| Carbajal Concrete Construction | Ernesto J Carbajal | — | (209) 623 8757 | Other | Stockton · San Joaquin County | — | — |
| Cardenas & Son Trenching Services | Joel Ochoa Villanueva | — | (209) 915 1226 | Other | Ripon · San Joaquin County | — | — |
| Cardenas Concrete | Cardenas Concrete | — | (209) 481 0403 | Other | Manteca · San Joaquin County | — | — |
| Cardiel Floor Coatings INC | Esteban Cordero Cardiel | — | (209) 949 2183 | Other | Lodi · San Joaquin County | — | — |
| Cardinal Construction | Nicholas John Meintasis | — | (209) 247 4040 | GC, remodel, ADU | Escalon · San Joaquin County | — | — |
| Caresco Builders Corp | Michael David Carruesco | — | (209) 952 6733 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Carl E Cox Construction Co | Carlton Eugene Cox | — | (209) 481 5159 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Carlos Lemuz Espino | Carlos Lemuz Espino | — | (408) 849 0216 | Other | Lathrop · San Joaquin County | — | — |
| Carlos Lopez Designs | Carlos Lopez Designs | — | (209) 607 6471 | Other | Stockton · San Joaquin County | — | — |
| Carlos Santana | Carlos Santana | — | (209) 712 6451 | Electricians | Lodi · San Joaquin County | — | — |
| Carlsbad Electrician Pros - Electrical Co | Carlsbad Electrician Pros - Electrical Co | — | (858) 264-4901 | Electricians | Carlsbad · San Joaquin County | — | — |
| Carnahan Construction | Alfred Carl Carnahan | — | (209) 914 6805 | GC, remodel, ADU | Banta · San Joaquin County | — | — |
| Carpenter Construction | Jason Benjamin Carpenter | — | (209) 331 3367 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Carpenters Construction | Brian Matthew Ponte | — | (209) 952 9412 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Carrasco Fabrication | Carrasco Fabrication | — | (209) 518 7336 | HVAC | Stockton · San Joaquin County | — | — |
| Carrillo's Tree Care | Gabriel Carrillo | — | (408) 799 7575 | Tree | Tracy · San Joaquin County | — | — |
| Casenave Construction | Mark Leon Casenave | — | (209) 242 4857 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Casey Curiels Home Services | Casey Joseph Curiel | — | (209) 828 6553 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Castelhano Carpet Professionals | Castelhano Carpet Professionals | — | (510) 676 5565 | Other | Manteca · San Joaquin County | — | — |
| Castillo Construction | Juan Albert Castillo | wweeiihhuuaanngg@gmail.com | (209) 294 6807 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Castle Care Water Heaters And Plumbing INC | Mark Richard Delzer | — | (925) 577 3788 | Other | Mountain House · San Joaquin County | — | — |
| Castle Rivers Floor Covering | Castle Rivers Floor Covering | — | (209) 815 1693 | Other | Stockton · San Joaquin County | — | — |
| Castle Window Covers INC | Dennis Andra Dorman | — | (209) 465 3200 | Other | Stockton · San Joaquin County | — | — |
| Castro 711 Construction INC | Cristiann Holaf Castro Gonzalez | support@webador.com | (209) 993 3019 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Cavanaugh Construction | Eric Gordon Cavanaugh | — | (209) 353 8876 | Electricians | Ripon · San Joaquin County | — | — |
| Cavanaugh Paving And Grading INC | Gerald Lee Cavanaugh | — | (209) 838 7004 | Other | Escalon · San Joaquin County | — | — |
| Cba Scaffold | Cba Scaffold | — | (209) 430 1641 | Other | Lathrop · San Joaquin County | — | — |
| Cbz Drywall INC | Barriga Zuniga Candelario | cbz.drywall@gmail.com | (408) 426 0037 | Other | Stockton · San Joaquin County | — | — |
| Ccs Construction Services | Faburrieta Gallegos Sebastian | — | (925) 660 2141 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Cd Concrete Construction LLC | Diaz Cesar | — | (209) 598 1803 | Other | Stockton · San Joaquin County | — | — |
| Ce Handymans Service | Clyde Lee Edwards | — | (408) 687 0761 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Cedric Long | Cedric Long | — | (510) 472 5423 | Other | Stockton · San Joaquin County | — | — |
| Cen Cal Glass LLC | Heather Renee Lara | — | (925) 518 4999 | Windows, patio, painters | Linden · San Joaquin County | — | — |
| Cen Cal Masonry | Salvador Andres Ochoa | bids@cencalmasonry.com | (209) 483 0754 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Cen Cal Plastering INC | Kevin Wayne Gann | — | (209) 858 9766 | Other | Lathrop · San Joaquin County | — | — |
| Cen-cal Asphalt Services | Brian Patrick Ramsey | — | (209) 614 7471 | Other | Tracy · San Joaquin County | — | — |
| Cen-cal Fire Alarm & Security LLC | Ronald Paul Perez | — | (209) 323 8445 | Electricians | Stockton · San Joaquin County | — | — |
| Cen-cal Painting LLC DBA Freshcoat | Riley Dean Cox | — | (209) 280 0480 | Windows, patio, painters | Stockton · San Joaquin County | — | — |