| Caico's Plumbing | Caico's Plumbing | — | (707) 391 0431 | Other | Ukiah · Mendocino County | — | — |
| Caito Construction | Vincent James Caito | — | (707) 357 0897 | GC, remodel, ADU | Fort Bragg · Mendocino County | — | — |
| Cal State Painting | Cal State Painting | calstatepainting247@gmail.com | (805) 458 1216 | Windows, patio, painters | Willits · Mendocino County | — | — |
| California Yurts INC | David John Raitt | — | (707) 319 3267 | GC, remodel, ADU | Ukiah · Mendocino County | — | — |
| Campbell Construction Co | Kevin Martin Campbell | — | (408) 800 8908 | GC, remodel, ADU | Ft Bragg · Mendocino County | — | — |
| Can Do Electric | Jesse Jorge Rodriguez | — | (707) 841 7706 | Electricians | Willits · Mendocino County | — | — |
| Carl Rittiman And Associates INC | Carl Alfred Rittiman | — | (707) 937 0804 | Other | Mendocino · Mendocino County | — | — |
| Carley Heating | Carley Heating | — | (707) 462 3729 | HVAC | Ukiah · Mendocino County | — | — |
| Carlisle Construction | Carlisle Construction | — | (209) 748-2419 | GC, remodel, ADU | Mendocino · Mendocino County | — | — |
| Carmichael-long Tree Service | Dustin Lee Carmichael | — | (707) 813 7178 | Other | Fort Bragg · Mendocino County | — | — |
| Carters Drywall Corporation | Travis Justin Ray Carter | — | (707) 380 7026 | Other | Willits · Mendocino County | — | — |
| Casago Mendocino Coast | Casago Mendocino Coast | info@casagomc.com | (234) 567-8910 | Property managers | Fort Bragg · Mendocino County | — | — |
| Casey Construction | Mike Allen Casey | — | (707) 357 1154 | GC, remodel, ADU | Fort Bragg · Mendocino County | — | — |
| Casey's Earthworks | Casey's Earthworks | — | (707) 357 1166 | Other | Mendocino · Mendocino County | — | — |
| Cash Carpet Service INC | Daniel Earl Cash | — | (707) 621 2820 | Other | Willits · Mendocino County | — | — |
| Catelectric | Edward William Iii Jones | — | (707) 239 3511 | Electricians | Willits · Mendocino County | — | — |
| Caughey Construction | Robert Shawn Caughey | — | (707) 684 9728 | GC, remodel, ADU | Gualala · Mendocino County | — | — |
| Ceja & Lopez Gutters | Alberto Ceja Ceja | — | (707) 621 0305 | Other roofers | Redwood Valley · Mendocino County | — | — |
| Ceja Ceja General Construction INC | Jose Manuel Ceja Valencia | — | (707) 621 0638 | GC, remodel, ADU | Talmage · Mendocino County | — | — |
| Cen's Landscaping Service | April Lopez Cen | — | (707) 962 0189 | Windows, patio, painters | Fort Bragg · Mendocino County | — | — |
| Cen's Landscaping Service | Rafael Salvador Cen Pat | — | (707) 962 0189 | GC, remodel, ADU | Fort Bragg · Mendocino County | — | — |
| Century 21 Fort Bragg Realty | Century 21 Fort Bragg Realty | — | (707) 964-2121 | Property managers | Fort Bragg · Mendocino County | — | — |
| Cesar Muniz Plumbing | Cesar Muniz Plumbing | — | (707) 272 5457 | Other | Ukiah · Mendocino County | — | — |
| Ch Construction | Casey Albert Hall | — | (707) 357 3552 | GC, remodel, ADU | Fort Bragg · Mendocino County | — | — |
| Chad Warner General Contracting INC | Chad Austin Warner | — | (707) 494 8642 | GC, remodel, ADU | Gualala · Mendocino County | — | — |
| Chamb Co | Gregory Thomas Chamberlin | — | (707) 972 1431 | GC, remodel, ADU | Gualala · Mendocino County | — | — |
| Chance Hart Trucking & Excavation | Chance Hart Trucking & Excavation | — | (707) 354 1595 | Other | Covelo · Mendocino County | — | — |
| Charles Brent Anderson | Charles Brent Anderson | — | (707) 957 0366 | GC, remodel, ADU | Fort Bragg · Mendocino County | — | — |
| Charters Construction | Christopher William Charters | chrischarters707@gmail.com | (707) 357 7752 | GC, remodel, ADU | Fort Bragg · Mendocino County | — | — |
| Chase Stultz Electric | Chase Austin Stultz | — | (707) 318 3177 | Electricians | Gualala · Mendocino County | — | — |
| Chema's Painting | Chema's Painting | — | (707) 462 2058 | Windows, patio, painters | Ukiah · Mendocino County | — | — |
| Chris Solomon Electric | Christopher George Solomon | — | (707) 272 0078 | Electricians | Calpella · Mendocino County | — | — |
| Chris V Wilson | Chris V Wilson | — | (707) 489 2181 | GC, remodel, ADU | Covelo · Mendocino County | — | — |
| Christensen Construction & Concrete INC | William Johan Christensen | — | (707) 462 4331 | GC, remodel, ADU | Ukiah · Mendocino County | — | — |
| Christopher Chilcote Construction And Design | Christopher Willard Chilcote | — | (707) 272 0879 | GC, remodel, ADU | Philo · Mendocino County | — | — |
| Clark Construction | Mark Leslie Clark | — | (707) 684 9579 | GC, remodel, ADU | Gualala · Mendocino County | — | — |
| Clayton Cochran | Clayton Cochran | — | (707) 292 5932 | GC, remodel, ADU | Gualala · Mendocino County | — | — |
| Clifton Construction | Ryan Wade Clifton | — | (707) 272 2750 | GC, remodel, ADU | Redwood Valley · Mendocino County | — | — |
| Clint Hudson Construction LLC | Clint Mc Millen Hudson | — | (707) 684 0562 | GC, remodel, ADU | Talmage · Mendocino County | — | — |
| Cml Construction | Christian M Lundmark | — | (530) 277 8154 | GC, remodel, ADU | Fort Bragg · Mendocino County | — | — |