| Building Adventures INC | Jamie Tyler Lynn | — | (530) 604 5966 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Buildwise Supply | Johnathan James Dobra | — | (425) 358 0955 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Built Right Construction | Christopher Joseph Mollath | — | (530) 276 1477 | GC, remodel, ADU | Anderson · Shasta County | — | — |
| Bullen Enterprises INC | Dusty Milo Bullen | — | (530) 945 9074 | Other | Redding · Shasta County | — | — |
| Bullert Industrial Electric INC | Kenneth Eric Bullert | — | (530) 364 2166 | Electricians | Redding · Shasta County | — | — |
| Bulletproof Plumbing | Bulletproof Plumbing | brianfromchicago@mac.com | (530) 338 5888 | Other | Anderson · Shasta County | — | — |
| Bullhead Plumbing | Bullhead Plumbing | — | (530) 945 6183 | Other | Redding · Shasta County | — | — |
| Bundy's Tree Service | Nickolas Carl Bundy | nick@bundystreeservice.com | (530) 515 3766 | Tree | Redding · Shasta County | — | — |
| Burgess Construction | James Guy Burgess | — | (530) 510 0680 | GC, remodel, ADU | Palo Cedro · Shasta County | — | — |
| Burgin Remodels And Renovations | Burgin Remodels And Renovations | — | (530) 921 1016 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Burke Roofing INC | Timothy James Burke | — | (530) 365 7003 | Other roofers | Anderson · Shasta County | — | — |
| Burney Electric | Frank Wayne Rodman | — | (530) 335 3664 | Electricians | Burney · Shasta County | — | — |
| Bush's Vivid Painting | Bush's Vivid Painting | — | (530) 768 4068 | Windows, patio, painters | Redding · Shasta County | — | — |
| C & C Construction | Carl Lawrence Nelson | — | (530) 356 4876 | GC, remodel, ADU | Shasta Lake · Shasta County | — | — |
| C Carlsons Plumbing Systems | C Carlsons Plumbing Systems | — | (530) 510 1000 | GC, remodel, ADU | Redding · Shasta County | — | — |
| C D Electric | Christopher David Poling | jonpinhorn.typedesign@gmail.com | (530) 440 6096 | Electricians | French Gulch · Shasta County | — | — |
| C D S Construction | Craig Dean Spainhower | — | (530) 605 6765 | GC, remodel, ADU | Bella Vista · Shasta County | — | — |
| C N L Construction | Carl Nels Lysgaard | — | (530) 806 7705 | GC, remodel, ADU | Redding · Shasta County | — | — |
| C R Services | Ernest Charles Goff | — | (530) 276 1460 | Other | Lakehead · Shasta County | — | — |
| Ca Building Services | Matthew Herbert Mcdougall | — | (530) 601 6871 | Electricians | Palo Cedro · Shasta County | — | — |
| Caa Construction | Christopher Anthony Anderson | — | (530) 355 9342 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Cabeceira Home Solutions LLC | Clinton Gabriel Cabeceira | — | (530) 524 2116 | GC, remodel, ADU | Shingletown · Shasta County | — | — |
| Cabinet Transformations | Cabinet Transformations | info@cabinettransformations.com | (530) 966 9657 | Other | Redding · Shasta County | — | — |
| Cadorin Construction | Jonathan Robert Cadorin | — | (916) 661 0323 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Cal Electro INC | Ernest Robert Iii Meissner | — | (530) 223 5937 | Electricians | Redding · Shasta County | — | — |
| Cal Starr Energy Consultants | John Lloyd Williams | — | (530) 246 7700 | Other | Redding · Shasta County | — | — |
| Caleb Brown Construction INC | Caleb Christopher Brown | — | (530) 515 6294 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Calhip | Paul Michael Mclean | — | (530) 515 0638 | GC, remodel, ADU | Redding · Shasta County | — | — |
| Caliber Office Furniture | Caliber Office Furniture | — | (530) 225 8677 | Other | Redding · Shasta County | — | — |
| Calif Tile Improvements | Calif Tile Improvements | — | (530) 223 6101 | Other | Redding · Shasta County | — | — |
| California Building And Consulting | California Building And Consulting | — | (530) 448 1486 | GC, remodel, ADU | Redding · Shasta County | — | — |
| California Custom Construction/fence | Ronald Wayne Angel | — | (530) 941 2137 | GC, remodel, ADU | Redding · Shasta County | — | — |
| California Safety Company INC | Christine Renee Schwartz | info@californiasafety.com | (530) 243 2521 | Electricians | Redding · Shasta County | — | — |
| Camario's Plumbing | Camario's Plumbing | — | (916) 752 5163 | Other | Redding · Shasta County | — | — |
| Camco Construction Electric INC | Lester David Boyle | — | (530) 221 9099 | Electricians | Bella Vista · Shasta County | — | — |
| Cameron Mac Leod Construction | Cameron Myles Macleod | — | (530) 945 8645 | GC, remodel, ADU | Anderson · Shasta County | — | — |
| Campbell Electric | Alan Merrill Campbell | — | (530) 549 5662 | Electricians | Bella Vista · Shasta County | — | — |
| Canyon Fire Protection | Canyon Fire Protection | — | (510) 301 7624 | Other | Shingletown · Shasta County | — | — |
| Captain Redbeard's Custom Tile | Captain Redbeard's Custom Tile | — | (530) 782 3608 | Other | Redding · Shasta County | — | — |
| Carlson Construction | Timothy Mills Carlson | — | (530) 396 2534 | Other | Ono · Shasta County | — | — |