| Cuddy General Engineering | Cuddy General Engineering | — | (209) 408 5517 | GC, remodel, ADU | Camino · El Dorado County | — | — |
| Culinaire Systems INC | Michael David Dean | — | (916) 596 0085 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Culver Commercial HVAC Services | Stephen Blake Culver | — | (530) 363 8290 | HVAC | Shingle Springs · El Dorado County | — | — |
| Culver Development & Design | Culver Development & Design | — | (916) 717 7331 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Cummings Concrete INC | Jerald John Jr Cummings | — | (530) 677 6947 | Other | Rescue · El Dorado County | — | — |
| Curtis Robert Sander | Curtis Robert Sander | — | (530) 306 5968 | GC, remodel, ADU | Cameron Park · El Dorado County | — | — |
| Custom Building Concepts INC | Jeffrey Scott Maus | — | (916) 933 4307 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Custom Built By Crawford INC | Luke Frederick Crawford | — | (415) 909 9406 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Custom Cabinetry & Co LLC | Thomas Charles Fran Stone | info@custom-cabinetry.com | (916) 934 4847 | Other | El Dorado Hills · El Dorado County | — | — |
| Custom Concrete | Custom Concrete | — | (530) 996 1038 | Other | South Lake Tahoe · El Dorado County | — | — |
| Custom Construction | Seth Adam Howard | — | (530) 318 5060 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Custom Plantings INC | Darcie Kate Paulin | darcie@customplantings.com | (916) 743 3427 | Windows, patio, painters | El Dorado Hills · El Dorado County | — | — |
| Custom Surveillance Systems | Custom Surveillance Systems | — | (916) 276 2330 | Other | El Dorado Hills · El Dorado County | — | — |
| Cutting Edge Custom Carpentry | Cutting Edge Custom Carpentry | — | (916) 607 1706 | Other | Shingle Springs · El Dorado County | — | — |
| Cutting Edge Paint And Finish | Cutting Edge Paint And Finish | — | (530) 318 3198 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| D & L Paving INC | Charles Fredrick Segers | — | (530) 541 2710 | Other | South Lake Tahoe · El Dorado County | — | — |
| D A Roofing | Dennis Alan Darnell | — | (916) 715 1032 | Other roofers | Shingle Springs · El Dorado County | — | — |
| D And M Holding | D And M Holding | sjackson@shannonjacksonpr.com | (530) 303 3378 | Tree | Camino · El Dorado County | — | — |
| D And M Holding LLC | Joel Timothy Alter | sjackson@shannonjacksonpr.com | (530) 651 4128 | Other | Camino · El Dorado County | — | — |
| D B Integration | D B Integration | — | (925) 525 5807 | Electricians | Cameron Park · El Dorado County | — | — |
| D F R Construction INC | Ryan William Fitzpatrick | — | (650) 303 8399 | GC, remodel, ADU | Pacific · El Dorado County | — | — |
| D G Granade INC | Douglas Gordon Jr Granade | — | (530) 677 7484 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| D L Bruss Construction | David Lee Bruss | — | (707) 689 3254 | GC, remodel, ADU | Cool · El Dorado County | — | — |
| D M B Construction | David Michael Bishop | — | (916) 825 2492 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| D M Cook General Contractor | D M Cook General Contractor | — | (530) 409 4374 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| D M Quality Painting | D M Quality Painting | dmqualitypainting5@gmail.com | (530) 401 5343 | Windows, patio, painters | Garden Valley · El Dorado County | — | — |
| D Martel Plumbing | Jacqueline Marie Martel | — | (916) 933 6363 | Other | El Dorado Hills · El Dorado County | — | — |
| D N L Electric INC | Dennis Michael Jordan | — | (530) 409 5900 | Electricians | Rescue · El Dorado County | — | — |
| D R C I Dale Rhode Custom Installations | Terry Dale Rhode | — | (530) 391 0954 | Other | Placerville · El Dorado County | — | — |
| D R Construction | David Robert Radke | — | (530) 545 3339 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| D Roberts Electric INC | Derek F Roberts | — | (707) 655 7001 | Electricians | Shingle Springs · El Dorado County | — | — |
| D T Wolfe Construction | Dustin Thomas Wolfe | — | (530) 417 2008 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| D Van Voorhis Construction | Daniel Aaron Van Voorhis | — | (916) 759 8625 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| D W Construction | Daniel Warren Ferris | — | (916) 612 5716 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| D Weber Construction | Daniel Paul Weber | — | (530) 409 0084 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| D Y Construction | David Oderkirk Yaw | — | (916) 832 7499 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| D'agostini Dirt Works LLC | Casey Michael D'agostini | — | (530) 232 8124 | Other | Mount Aukum · El Dorado County | — | — |
| D.g. Construction | Donald Lynn Giacomo | — | (530) 409 9991 | GC, remodel, ADU | Diamond Springs · El Dorado County | — | — |
| Dacor Builders | Dacor Builders | — | (530) 647 1524 | GC, remodel, ADU | Camino · El Dorado County | — | — |
| Dad's Electric | Dean Allen Deleersnyder | — | (916) 761 1077 | Electricians | El Dorado Hills · El Dorado County | — | — |