| Collins General Contracting INC | Joe Leon Collins | ken@collinsgcllc.com | (530) 519 9062 | Other | Chico · Butte County | — | — |
| Colorful Attractions | Colorful Attractions | — | (805) 459 2773 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Comfort Society LLC | Jamin Jesus Bello | — | (971) 719 9117 | HVAC | Oroville · Butte County | — | — |
| Comfort Zone Enterprises INC | Donald Ray Wiley | — | (530) 864 5614 | HVAC | Chico · Butte County | — | — |
| Comfort Zone Heating & Air Conditioning | Donald Ray Wiley | — | (530) 864 5614 | HVAC | Chico · Butte County | — | — |
| Commercial Pump & Mechanical INC | Steven Lee Greenwood | — | (530) 899 1583 | Other | Chico · Butte County | — | — |
| Community Action Agency Of Butte County INC | Brandon Lee Mathis | — | (530) 712 2600 | GC, remodel, ADU | Chico · Butte County | — | — |
| Community Construction | Mark Paul West | — | (530) 895 0586 | GC, remodel, ADU | Chico · Butte County | — | — |
| Community Housing Improvement Program Incorporated | Jason Daniel Marr | — | (530) 891 6931 | GC, remodel, ADU | Chico · Butte County | — | — |
| Community Trade Alliance | Nicholas Theodore Starnes | — | (530) 809 1779 | GC, remodel, ADU | Chico · Butte County | — | — |
| Concow Custom Lighting & Controls | Concow Custom Lighting & Controls | — | (530) 403 0590 | Electricians | Oroville · Butte County | — | — |
| Connect Energy Mechanical Corporation | David John Turri | — | (530) 570 7988 | HVAC | Chico · Butte County | — | — |
| Conrads Plumbing | Conrads Plumbing | — | (530) 893 1124 | Other | Chico · Butte County | — | — |
| Conroy Construction INC | Patrick John Conroy | — | (530) 891 1204 | GC, remodel, ADU | Chico · Butte County | — | — |
| Consistent Construction | Harold Francis Iii Bennett | — | (530) 720 3047 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Construction Champs LLC | Stephen Joseph Pratt | — | (530) 521 7287 | GC, remodel, ADU | Durham · Butte County | — | — |
| Contreras Construction | Paul Edward Contreras | bids@contrerasconstructioncorp.com | (530) 321 2507 | GC, remodel, ADU | Chico · Butte County | — | — |
| Conway Construction | Dean Wilson Conway | — | (530) 680 5515 | GC, remodel, ADU | Chico · Butte County | — | — |
| Cooks Electric | Randall Jay Cook | — | (530) 519 8446 | Electricians | Chico · Butte County | — | — |
| Coopers Landscaping | Coopers Landscaping | — | (530) 520 2020 | Windows, patio, painters | Durham · Butte County | — | — |
| Copper Leaf Construction Corp | Trenton James Nahas | — | (925) 953 4091 | GC, remodel, ADU | Chico · Butte County | — | — |
| Cornerstone Construction | Matthew Donald Rappa | gwebb@cornerstone-construction.com | (832) 259-2520 | GC, remodel, ADU | Durham · Butte County | — | — |
| Cornerstone Construction | Daniel Elwood Jr Martin | gwebb@cornerstone-construction.com | (832) 259-2520 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Cornerstone Landscaping | Cornerstone Landscaping | — | (530) 774 4925 | Windows, patio, painters | Chico · Butte County | — | — |
| Cornerstone Qch | Cornerstone Qch | — | (530) 375 0733 | GC, remodel, ADU | Chico · Butte County | — | — |
| Corporon Home Repair And Remodel | Corporon Home Repair And Remodel | — | (530) 514 1077 | GC, remodel, ADU | Chico · Butte County | — | — |
| Covello Plumbing | Kyle Robert Covello | kyle@covelloplumbing.com | (530) 249 7749 | Other | Chico · Butte County | — | — |
| Covert Window Tinting | Covert Window Tinting | — | (916) 321 2752 | Other | Chico · Butte County | — | — |
| Cox Excavating General Engineering | Cox Excavating General Engineering | — | (530) 514 1250 | Other | Oroville · Butte County | — | — |
| Cox Glass LLC | Darren Robert Diver | — | (530) 533 1166 | Windows, patio, painters | Oroville · Butte County | — | — |
| Craig Construction Co | Craig James Almaguer | — | (530) 228 1895 | GC, remodel, ADU | Chico · Butte County | — | — |
| Craig Heinemann General Engineering INC | Craig Jon Heinemann | — | (530) 680 6762 | Other | Paradise · Butte County | — | — |
| Craig Seabury Landscape | Craig Seabury Landscape | — | (530) 680 3024 | Windows, patio, painters | Chico · Butte County | — | — |
| Crbr Property Damage Services | Danny James Sr Andreasen | — | (530) 891 0333 | GC, remodel, ADU | Chico · Butte County | — | — |
| Creative Cabinetry | Creative Cabinetry | — | (530) 891 0915 | Other | Chico · Butte County | — | — |
| Creative Construction Of Northern Calif | Einar Steven Ostling | — | (530) 632 2904 | GC, remodel, ADU | Gridley · Butte County | — | — |
| Crossfire Tree & Vegetation Services INC | Dale Joseph Gomes | — | (530) 877 9002 | Tree | Paradise · Butte County | — | — |
| Cruzin Landscape | Cruzin Landscape | — | (530) 403 0706 | Windows, patio, painters | Biggs · Butte County | — | — |
| Culligan Of Chico | Culligan Of Chico | — | (530) 343 5100 | Other | Chico · Butte County | — | — |
| Cumberland Plumbing INC | Christopher Lee Cumberland | — | (530) 538 9580 | Other | Oroville · Butte County | — | — |