| Better Floor Systems | Better Floor Systems | — | (925) 639 1007 | Other | Wallace · Calaveras County | — | — |
| Beyettes Tree Care | Beyettes Tree Care | mymail@mailservice.com | (209) 747 5449 | Tree | Valley Springs · Calaveras County | — | — |
| Beyond The Barn | Raleen Dona Kountz | — | (209) 200 3970 | Other | Valley Springs · Calaveras County | — | — |
| Big 'c' Construction | John Anthony Capilla | — | (925) 354 1470 | GC, remodel, ADU | Copperopolis · Calaveras County | — | — |
| Big Bear Drywall | Thomas Keith Stevens | — | (209) 728 1511 | Other | Murphys · Calaveras County | — | — |
| Big Trees Home Improvement | Big Trees Home Improvement | — | (209) 795 7213 | GC, remodel, ADU | Arnold · Calaveras County | — | — |
| Big Valley Electric | James Albert Jr Coyle | info@bigvalleyelectric.com | (209) 986 3550 | Electricians | Copperopolis · Calaveras County | — | — |
| Bill Johnson Plumbing & Construction | William Joseph Johnson | — | (707) 357 3231 | GC, remodel, ADU | Murphys · Calaveras County | — | — |
| Bledsoe Plumbing | Bledsoe Plumbing | — | (209) 286 9848 | Other | Camp Connell · Calaveras County | — | — |
| Bloomica Landscaping | Bloomica Landscaping | info@bloomicalandscaping.com | (209) 207 3785 | Windows, patio, painters | Copperopolis · Calaveras County | — | — |
| Blue Dot Plumbing | Blue Dot Plumbing | — | (209) 840 8281 | Other | Arnold · Calaveras County | — | — |
| Blue Water Builders | Blue Water Builders | — | (925) 337 3337 | GC, remodel, ADU | Valley Springs · Calaveras County | — | — |
| Bob Eggers | Bob Eggers | — | (925) 872 1963 | HVAC | Burson · Calaveras County | — | — |
| Bob Schock Construction | Schock Robert | — | (209) 304 3577 | GC, remodel, ADU | Mountain Ranch · Calaveras County | — | — |
| Bolin Builders INC | William Tracy Bolin | — | (209) 772 2280 | GC, remodel, ADU | Valley Springs · Calaveras County | — | — |
| Bolin Roofing INC | Thomas Benton Bolin | bolinroofing@hotmail.com | (209) 772 1809 | Other roofers | Valley Springs · Calaveras County | — | — |
| Bond Painting | Bond Painting | — | (209) 584 4557 | Windows, patio, painters | Arnold · Calaveras County | — | — |
| Boucke Construction | James Reid Boucke | — | (209) 840 0465 | GC, remodel, ADU | Copperopolis · Calaveras County | — | — |
| Br Cole Construction | Brett Robert Cole | — | (408) 640 8587 | GC, remodel, ADU | Murphys · Calaveras County | — | — |
| Bradley Gene Schoettgen | Bradley Gene Schoettgen | — | (209) 753 6223 | GC, remodel, ADU | Hathaway Pines · Calaveras County | — | — |
| Brasil Painting & Decorating | Brasil Painting & Decorating | — | (408) 499 3348 | Windows, patio, painters | Copperopolis · Calaveras County | — | — |
| Breen Painting | Breen Painting | — | (209) 588 3931 | Windows, patio, painters | Avery · Calaveras County | — | — |
| Bri Construction | Bruce Robert Irish | — | (925) 963 2622 | GC, remodel, ADU | Arnold · Calaveras County | — | — |
| Bridges Construction | Royce Robin Bridges | — | (209) 795 4809 | GC, remodel, ADU | Avery · Calaveras County | — | — |
| Brighter Electric Services | Dallas Michael Haaland | — | (209) 606 3714 | Electricians | San Andreas · Calaveras County | — | — |
| Briski Well Drilling Co | Carole Louise Briski | — | (209) 754 3394 | Other | San Andreas · Calaveras County | — | — |
| Brockett Plumbing | Brockett Plumbing | — | (209) 728 3210 | Other | Hathaway Pines · Calaveras County | — | — |
| Bruce Whittle Electric | Bruce L Whittle | — | (209) 736 0465 | Electricians | Angels Camp · Calaveras County | — | — |
| Built By Kennedy | Built By Kennedy | — | (209) 605 7949 | GC, remodel, ADU | Valley Springs · Calaveras County | — | — |
| Burton Tile & Marble | Burton Tile & Marble | — | (209) 770 0683 | Other | Vallecito · Calaveras County | — | — |
| C C Electrical | Christopher Lee Cottle | — | (209) 603 4605 | Electricians | Valley Springs · Calaveras County | — | — |
| C D K Electric | Charles Daniel Klein | — | (925) 409 0346 | Electricians | Murphys · Calaveras County | — | — |
| C K Electric | C K Electric | — | (760) 749-3214 | Electricians | Valley Center · Calaveras County | — | — |
| C Lee Tree Service | Clayton Robert Lee | — | (209) 418 3328 | Other | West Point · Calaveras County | — | — |
| C Yorks Plumbing Co | Chad Paul Yorks | — | (209) 539 0551 | Other | Arnold · Calaveras County | — | — |
| Ca Home Inspection | Ca Home Inspection | — | (209) 676-9968 | Inspectors | Salida · Calaveras County | — | — |
| Cabinetsnmore INC | Jeffrey John Taurian | — | (209) 728 3200 | GC, remodel, ADU | Murphys · Calaveras County | — | — |
| Cafar Construction Inc. | Cafar Construction Inc. | cafarconstruction@gmail.com | (951) 541-7623 | GC, remodel, ADU | Hemet · Calaveras County | — | — |
| Cain Construction | Michael Paul Cain | — | (209) 753 7301 | GC, remodel, ADU | Mountain Ranch · Calaveras County | — | — |
| Calavera Hills Carlsbad Ca | Calavera Hills Carlsbad Ca | — | (760) 603-9404 | Property managers | Carlsbad · Calaveras County | — | — |