| Cody Kucera | Cody Kucera | — | (530) 575 2645 | Other | Grass Valley · Nevada County | — | — |
| Cody's Concrete Pumping | Cody's Concrete Pumping | — | (530) 271 7060 | Other | Grass Valley · Nevada County | — | — |
| Coffey Construction | Sean Gary Coffey | info@coffeygroup.com | (530) 559 6086 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| Cohesive Building INC | Brian Patrick Irby | — | (530) 557 5293 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Cold Creek Construction INC | Cameron Casey Byers | — | (530) 559 5134 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Color Eclipse Painting | Color Eclipse Painting | — | (530) 559 3058 | Windows, patio, painters | Grass Valley · Nevada County | — | — |
| Color Lock Painting | Color Lock Painting | — | (530) 552 1900 | Windows, patio, painters | Grass Valley · Nevada County | — | — |
| Comfort Plumbing Systems INC | Kristin Gail Mohr | — | (530) 470 8761 | Other | Nevada City · Nevada County | — | — |
| Completlee Construction | Leland Iii Stafford | — | (530) 798 1127 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| Compound Electric | Josh Tucker Bidart | — | (530) 368 7445 | Electricians | Penn Valley · Nevada County | — | — |
| Connolly Heating | Connolly Heating | — | (781) 974 3207 | HVAC | Truckee · Nevada County | — | — |
| Construction Et Cetera | Michael Anthony Ferrante | — | (530) 559 2777 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| Construction Et Cetera | James Mark Allen | — | (916) 539 5971 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Construction Services | Mason Robert Stadulis | — | (530) 955 5033 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Contact Electric INC | Jason Martin Riedel | — | (775) 787 0267 | Electricians | Truckee · Nevada County | — | — |
| Cook Enterprises | Robert Joseph Cook | interested@domainmarket.com | (650) 450 1202 | Electricians | Penn Valley · Nevada County | — | — |
| Copper Built | Copper Built | — | (530) 263 9616 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Copperwood Construction | Clinton Douglas Weakley | agustinamingote@gmail.com | (209) 840 1838 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Core Construction | Sosa-luria Javier | — | (530) 386 7298 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Corvid Carpentry | Corvid Carpentry | — | (530) 263 2771 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Covert's Pump Service INC | Michael Stuart Covert | — | (530) 292 9355 | Other | North San Juan · Nevada County | — | — |
| Craig Doroska Masonry | Craig Doroska Masonry | — | (530) 386 5679 | Other | Truckee · Nevada County | — | — |
| Craig Krauss Heating And Hydronics | Craig Krauss Heating And Hydronics | — | (530) 587 6253 | HVAC | Truckee · Nevada County | — | — |
| Craig Lindsay Construction | Craig Alan Lindsay | — | (530) 277 8037 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Craig Price INC | Craig Alan Price | info@craig-price.com | (530) 587 4081 | Other | Truckee · Nevada County | — | — |
| Craig Warren Nelson | Craig Warren Nelson | — | (530) 721 2228 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Craig Winslow Stahle | Craig Winslow Stahle | — | (530) 906 2765 | Electricians | Grass Valley · Nevada County | — | — |
| Creamer Construction | Richard Paul Creamer | — | (530) 913 9249 | GC, remodel, ADU | Penn Valley · Nevada County | — | — |
| Creamer Elite Custom Welding | Creamer Elite Custom Welding | — | (530) 277 7529 | Other | Penn Valley · Nevada County | — | — |
| Creedon Construction INC | Christopher Adam Creedon | info@creedonconstruction.com | (858) 692 6406 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Crestwood Construction INC | Marshall Aaron Williams | — | (530) 550 9500 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Critical Path Reconstruction INC | William Earl Shewman | — | (916) 229 2594 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Crocs 11 Construction INC | Ryan Matthew Wells | — | (530) 264 6375 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Crossman Construction | Curtis Marty Crossman | — | (530) 559 9025 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Crowley Builders INC | Sherrine Louise Crowley | — | (530) 277 6554 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Crown Tree Service LLC | Anthony Francis Koenn | anthony@crowntreesvc.com | (530) 265 0585 | Tree | Nevada City · Nevada County | — | — |
| Crux Custom Builders | Crux Custom Builders | — | (805) 423 5455 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Crw Construction | Marlon Wayne Wenstrom | — | (916) 956 5000 | Electricians | Truckee · Nevada County | — | — |
| Cs Electric | Casey Ryan Swanson | — | (530) 802 3146 | Electricians | Grass Valley · Nevada County | — | — |
| Csf Construction LLC | Conor Stark Farrell | — | (530) 913 0117 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |