| Creative Pool/spa Service And Repair | Robert Carl Buck | — | (925) 525 4868 | Pool | Valley Springs · Calaveras County | — | — |
| Crg Properties Inc. | Crg Properties Inc. | — | (760) 470-6060 | Property managers | Bonsall · Calaveras County | — | — |
| Cristo Enterprises | Marshall John Cristo | — | (209) 795 0208 | GC, remodel, ADU | Murphys · Calaveras County | — | — |
| Csr Painting | Csr Painting | — | (858) 284-7743 | Windows, patio, painters | Valley Center · Calaveras County | — | — |
| Ctk Welding DBA Ctk Grinding | Tyra Mccart-Swans Dragomanovich | — | (209) 736 7437 | Tree | Altaville · Calaveras County | — | — |
| Curtis Jasper | Curtis Jasper | — | (209) 768 6032 | Other | San Andreas · Calaveras County | — | — |
| Custom Roof Crafters | Custom Roof Crafters | — | (209) 456 1734 | Other roofers | Valley Springs · Calaveras County | — | — |
| Cv Construction INC | Michael Charles Jr Fletcher | office@cvconstruction.com | (831) 594 3904 | GC, remodel, ADU | Copperopolis · Calaveras County | — | — |
| Cyncon Construction | Victor Scott Nordvik | — | (209) 404 1227 | GC, remodel, ADU | Copperopolis · Calaveras County | — | — |
| D & D Landscaping | D & D Landscaping | — | (209) 559 5260 | Windows, patio, painters | Copperopolis · Calaveras County | — | — |
| D K R Design Group | Dion Keith Rudd | — | (209) 663 9313 | Windows, patio, painters | Hathaway Pines · Calaveras County | — | — |
| D R M | Devin Richard Mc Gee | — | (209) 324 0272 | Other | Copperopolis · Calaveras County | — | — |
| D-b Plumbing | D-b Plumbing | — | (209) 662 0347 | Other | Valley Springs · Calaveras County | — | — |
| Dale Briski Construction | Dale Andrew Briski | — | (209) 754 4619 | Other | San Andreas · Calaveras County | — | — |
| Dale Butterworth Pools | Dale Butterworth Pools | — | (209) 785 9616 | Pool | Copperopolis · Calaveras County | — | — |
| Dan Routh Construction | Danny Ray Routh | — | (209) 552 5419 | GC, remodel, ADU | Arnold · Calaveras County | — | — |
| Dandv Construction INC | Dmytro Korzh | — | (916) 305 9386 | GC, remodel, ADU | Mountain Ranch · Calaveras County | — | — |
| Danielsen Construction And Energy Management | Thomas Henrik Danielsen | — | (209) 728 4921 | HVAC | Altaville · Calaveras County | — | — |
| Danny Jefferson Construction | Daniel Tucker Jefferson | — | (951) 440 2474 | GC, remodel, ADU | Murphys · Calaveras County | — | — |
| Darby Plumbing INC | Richard Earle Jr Darby | — | (209) 728 3151 | Other | Murphys · Calaveras County | — | — |
| Dave Campbell Construction | David Theodore Campbell | — | (209) 728 9985 | GC, remodel, ADU | Murphys · Calaveras County | — | — |
| Dave Martens Construction | David Eric Martens | — | (209) 770 3309 | GC, remodel, ADU | Arnold · Calaveras County | — | — |
| David Anderson Const | David Anderson Const | — | (209) 304 1936 | GC, remodel, ADU | Valley Springs · Calaveras County | — | — |
| David Ayers Electric | David Lee Jr Ayers | — | (209) 649 8068 | Electricians | Valley Springs · Calaveras County | — | — |
| David Beardmore Lindsay | David Beardmore Lindsay | — | (510) 290 8286 | GC, remodel, ADU | Arnold · Calaveras County | — | — |
| David Dolin Roofing INC | Dolin David | daviddolinroofing@yahoo.com | (209) 772 9850 | Other roofers | Valley Springs · Calaveras County | — | — |
| David Edward Fowler | David Edward Fowler | — | (415) 259 9791 | Electricians | Arnold · Calaveras County | — | — |
| David Hitchcock | David Hitchcock | — | (209) 743 2681 | GC, remodel, ADU | Murphys · Calaveras County | — | — |
| David Kent Wood | David Kent Wood | — | (209) 768 2029 | Other | Arnold · Calaveras County | — | — |
| Dc Engineering | Dc Engineering | — | (209) 923 1494 | Electricians | Valley Springs · Calaveras County | — | — |
| Debra Ann Noble DBA Bob Noble And Son's | Bob Noble And Son's | — | (209) 293 7009 | Other | Wilseyville · Calaveras County | — | — |
| Decoste Septics | Decoste Septics | — | (209) 770 3833 | Other | Murphys · Calaveras County | — | — |
| Deets & Son Construction | James A Deets | — | (209) 815 4520 | GC, remodel, ADU | Valley Springs · Calaveras County | — | — |
| Delta Pools | Delta Pools | — | (209) 993 1228 | Pool | Avery · Calaveras County | — | — |
| Dennis James Good | Dennis James Good | — | (209) 795 1557 | GC, remodel, ADU | Camp Connell · Calaveras County | — | — |
| Diamond Place Apartments | Diamond Place Apartments | — | (209) 754-4643 | Property managers | San Andreas · Calaveras County | — | — |
| Dillashaw Construction | Hal Jeffrey Dillashaw | — | (209) 743 8079 | GC, remodel, ADU | Altaville · Calaveras County | — | — |
| Dillashaw Wood Flooring INC | Travis Harold Dillashaw | — | (209) 768 3673 | Other | Angels Camp · Calaveras County | — | — |
| Distinctive Homes By Rapetti | John Keith Rapetti | — | (209) 754 1269 | GC, remodel, ADU | San Andreas · Calaveras County | — | — |
| Distinctive Metals Angels Heating & Air Conditioning | David Dean Mills | csr@angelssheetmetalinc.com | (209) 736 4541 | HVAC | Angels Camp · Calaveras County | — | — |