| Custom Marble & Onyx | Lynette Marie Silva | — | (209) 531 2200 | Other | Modesto · Stanislaus County | — | — |
| Custom Shower & Glass | Carol Lynn Canaday | — | (209) 869 0800 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Custom Tree Care | Custom Tree Care | — | (209) 840 7250 | Tree | Waterford · Stanislaus County | — | — |
| Custom Window Supply INC | Custom Window Supply INC | — | (866) 227-3854 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Custom Woodworks INC | Michael Edward Balat | interested@domainmarket.com | (209) 531 0930 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Customer's Choice Construction INC | Vincent Solomon Kern | — | (209) 345 9181 | GC, remodel, ADU | Ceres · Stanislaus County | — | — |
| Cuts By Clark INC | Dillon Von Clark | — | (209) 289 1957 | Other | Ceres · Stanislaus County | — | — |
| Cutting Edge Masonry INC | Lopez Munoz Cristobal | — | (510) 709 9714 | Other | Modesto · Stanislaus County | — | — |
| Cutting Edge Surfaces INC | Vincente Patricio Rivera | — | (209) 620 5696 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Cvd Construction INC | Ronald Arthur Rake | — | (209) 961 6417 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Cyber Electric LLC | Marco Antonio Diaz | — | (209) 222 0951 | Electricians | Modesto · Stanislaus County | — | — |
| D & B Precision Sheetmetal INC | Loretta Joyce Ballard | — | (209) 848 3030 | Other | Oakdale · Stanislaus County | — | — |
| D & D Spray Systems INC | Danny Joseph Harris | — | (209) 493 2165 | Other | Oakdale · Stanislaus County | — | — |
| D & M Hancock INC | Mark Nolan Hancock | — | (209) 544 3535 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| D & M Heating & A / C | Melvin Estuardo Martinez | — | (209) 613 3072 | HVAC | Modesto · Stanislaus County | — | — |
| D & S Custom Countertops | David Alan Holm | — | (209) 342 9063 | Other | Modesto · Stanislaus County | — | — |
| D - R Enterprise Ca LLC | David Wayne Rich | — | (209) 869 0234 | Electricians | Oakdale · Stanislaus County | — | — |
| D A Wood Construction INC | Danny Allen Jr Wood | — | (209) 491 4970 | Other | Oakdale · Stanislaus County | — | — |
| D C Custom Landscape INC | David Wayne Cole | — | (209) 604 3716 | Windows, patio, painters | Oakdale · Stanislaus County | — | — |
| D C Vient INC | Douglas Jon Vient | — | (209) 578 1224 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| D D K Plumbing | D D K Plumbing | — | (209) 840 4573 | GC, remodel, ADU | Salida · Stanislaus County | — | — |
| D F M Concrete Construction INC | Mendoza Rodriguez Ruben | — | (209) 587 3082 | Other | Newman · Stanislaus County | — | — |
| D J Designs | D J Designs | — | (209) 543 0300 | Other | Salida · Stanislaus County | — | — |
| D M Oliveira Enterprises INC DBA Soundscapes Security & Audio | Dennis Melvin Oliveira | — | (209) 667 5788 | Electricians | Turlock · Stanislaus County | — | — |
| D M Security Company | David James Mcdonald | — | (209) 534 9434 | Electricians | Modesto · Stanislaus County | — | — |
| D M Tile & Stone Installation INC | Del Real Macias Daniel | — | (209) 988 8138 | Other | Modesto · Stanislaus County | — | — |
| D N Caulton Interior Systems | D N Caulton Interior Systems | — | (209) 531 0602 | Other | Ceres · Stanislaus County | — | — |
| D Previtali Const | D Previtali Const | — | (209) 277 5090 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| D R Electric | Del Rio Vicente | — | (209) 409 5086 | Electricians | Modesto · Stanislaus County | — | — |
| D Ramirez Landscaping LLC | Gamboa David Ramirez | — | (510) 493 5997 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| D Wilson Plumbing | D Wilson Plumbing | — | (209) 655 9406 | Other | Waterford · Stanislaus County | — | — |
| D Young Enterprises INC DBA Young Builders | Donny Anthony Young | — | (209) 606 9426 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| D&e Precision Metalworks INC | Marcos Antonio Cruz Barraza | — | (925) 508 4141 | Other | Modesto · Stanislaus County | — | — |
| D&s Electric INC | Daniel Adan Perez | — | (209) 985 4358 | Electricians | Ceres · Stanislaus County | — | — |
| D3 Pools | D3 Pools | — | (209) 495 2100 | Pool | Waterford · Stanislaus County | — | — |
| Da Landscape Services INC | Solorzano Abraham Pineda | — | (209) 499 2096 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Da Silva All Electric/home Repair | Raymond Paul Da Silva | — | (209) 324 7540 | Electricians | Modesto · Stanislaus County | — | — |
| Daisy Landscaping Maintenance | Daisy Landscaping Maintenance | — | (209) 695 8444 | Windows, patio, painters | Patterson · Stanislaus County | — | — |
| Dalton Flooring | Dalton Flooring | — | (209) 456 3898 | GC, remodel, ADU | Ceres · Stanislaus County | — | — |
| Dan Fuller Electrical | Daniel Eugene Ii Fuller | — | (209) 818 7723 | Electricians | Hughson · Stanislaus County | — | — |