| Clearwater Construction | Jon Richard Meleski | — | (530) 919 0929 | GC, remodel, ADU | Camino · El Dorado County | — | — |
| Clearwater Landscape Services | Scott Ray Houck | — | (916) 987 3081 | GC, remodel, ADU | Cameron Park · El Dorado County | — | — |
| Clifford Framing INC | Jason Kenneth Clifford | — | (916) 600 0094 | Other | El Dorado · El Dorado County | — | — |
| Cloonan Construction | Bradley John Cloonan | — | (925) 963 2408 | GC, remodel, ADU | Rescue · El Dorado County | — | — |
| Closet Gallery LLC | Lyndell Joseph Deatherage | info@ndiscovered.com | (916) 378 5050 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Cm Electric | Charles Joseph Jr Yurgelevic | reception@cmelectric.com | (530) 545 0450 | Electricians | Camino · El Dorado County | — | — |
| Cm Grading & Excavation | Carter Alexander Moore | — | (916) 799 9231 | Other | Placerville · El Dorado County | — | — |
| Coast 2 Coast Painting | Coast 2 Coast Painting | — | (650) 274 6228 | Windows, patio, painters | El Dorado Hills · El Dorado County | — | — |
| Coats & Sons Drywall | Ronald Verne Coats | — | (916) 747 8710 | Other | Shingle Springs · El Dorado County | — | — |
| Cobabe Brothers Plumbing | Matthew Paul Cobabe | — | (916) 476 6210 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Codicoral LLC | Jose Francisco Arce Ramirez | — | (530) 305 1581 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Cody Painting | Cody Painting | — | (530) 957 7234 | Windows, patio, painters | Cameron Park · El Dorado County | — | — |
| Cody's Tree Service INC | Frank James Cody | — | (530) 541 8733 | Tree | South Lake Tahoe · El Dorado County | — | — |
| Coffey Building Group | Thomas Clark Coffey | — | (916) 250 1700 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Coffey Custom Cabinetry | Michael Nathan Coffey | — | (530) 306 6651 | Other | El Dorado · El Dorado County | — | — |
| Cole Electrical Solutions INC | Rhyan Andrew Cole | — | (916) 801 8043 | Electricians | El Dorado Hills · El Dorado County | — | — |
| Colfax Excavators | Colfax Excavators | — | (530) 401 8081 | Other | Cool · El Dorado County | — | — |
| Collier Excavating INC | Ryan Curtis Collier | — | (530) 306 2382 | Other | Placerville · El Dorado County | — | — |
| Color Time Painting | Color Time Painting | — | (916) 417 6762 | Windows, patio, painters | Shingle Springs · El Dorado County | — | — |
| Comfort Controls Heating & Air Conditioning | Cecil Edward Jr Sims | — | (530) 642 0987 | HVAC | Diamond Springs · El Dorado County | — | — |
| Comfort Solutions Heating And Air Conditioning INC | John Carmine Buonauro | — | (916) 337 7030 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Commercial Surveillance Integration | Mikel Lee Chick | — | (916) 204 9562 | Other | Garden Valley · El Dorado County | — | — |
| Community Contracting | Brett William Mc Gagin | — | (916) 802 0716 | GC, remodel, ADU | Cameron Park · El Dorado County | — | — |
| Community Contracting Services | William Anthony Carmichael | — | (510) 566 2248 | GC, remodel, ADU | Pollock Pines · El Dorado County | — | — |
| Complete Building Concept | Complete Building Concept | — | (916) 799 6002 | GC, remodel, ADU | Cameron Park · El Dorado County | — | — |
| Complete Construction | Foster Douglas Cornelius | paul@complete-construction.com | (530) 409 2116 | GC, remodel, ADU | Pollock Pines · El Dorado County | — | — |
| Complete Construction | Ronald Wayne Thurman | paul@complete-construction.com | (916) 548 3883 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Complete Construction | John Silva Iii Fialho | paul@complete-construction.com | (916) 600 2283 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Complete Floor Covering | Complete Floor Covering | — | (530) 957 2426 | Other | Pollock Pines · El Dorado County | — | — |
| Complete Spectrum Painting | Complete Spectrum Painting | — | (916) 274 1511 | Windows, patio, painters | Placerville · El Dorado County | — | — |
| Conant's Tile & Stone | Conant's Tile & Stone | — | (530) 318 3416 | Other | South Lake Tahoe · El Dorado County | — | — |
| Conde Builder | Conde Builder | — | (408) 561 2846 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Confluence Landscapes-a Joint Venture | Studio The Confluence | — | (530) 444 2031 | Windows, patio, painters | Cool · El Dorado County | — | — |
| Conforti Plumbing INC | Marvin Noel Collins | — | (530) 622 0202 | Other | El Dorado · El Dorado County | — | — |
| Connected Plumbing | Connected Plumbing | — | (916) 496 4771 | Other | Shingle Springs · El Dorado County | — | — |
| Construct Tech | Construct Tech | — | (530) 545 0059 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Construction | Antonina Borisov | — | (916) 532 1963 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Construction Solutions | Douglas Dana Ullom | — | (530) 303 3033 | GC, remodel, ADU | Pollock Pines · El Dorado County | — | — |
| Construction Specialties | Brent Carthell Adams | — | (530) 391 7423 | GC, remodel, ADU | Diamond Springs · El Dorado County | — | — |
| Cook Custom Cabinetry INC | Jeffrey Michael Radtke | — | (530) 621 0851 | Other | Diamond Springs · El Dorado County | — | — |