| Drip Master Plumbing | Drip Master Plumbing | dripmasterplumbing@yahoo.com | (909) 269 9852 | Other | San Bernardino · San Bernardino County | — | — |
| Dripless Painting | Dripless Painting | — | (760) 475 3639 | Windows, patio, painters | Hesperia · San Bernardino County | — | — |
| Droneworx Pro - Washing INC | Javier Carrillo | — | (909) 380 3553 | Other | San Bernardino · San Bernardino County | — | — |
| Drop & Son's Construction INC | Paul Andrew Jr Drop | — | (909) 981 6465 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Drover Electric | Dane Matthew Rodriguez | dane@droverelectric.com | (909) 499 4488 | Electricians | Yucaipa · San Bernardino County | — | — |
| Drt Grading INC | Debra Ann Rash | — | (909) 591 4216 | Other | Chino Hills · San Bernardino County | — | — |
| Druckenmiller Roofing Company INC | Steffen Wayne Druckenmiller | — | (760) 241 7866 | Other roofers | Victorville · San Bernardino County | — | — |
| Dry Again | Christopher Trevor Connell | — | (909) 337 7900 | Other | Lake Arrowhead · San Bernardino County | — | — |
| Dry Lands Mitigation And Construction | Michael Elliott Bechtold | — | (760) 553 4653 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| Dry Zone Emergency Services | Lee Duane | — | (323) 601 3232 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Drywall By Robby | Robert John Jr Soltis | — | (909) 200 5663 | Other | Fontana · San Bernardino County | — | — |
| Ds General Construction Services INC | Gonzalez Sergio Roman | — | (949) 422 9643 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Ds HVAC INC | Richard Garcia | — | (909) 235 8838 | HVAC | Ontario · San Bernardino County | — | — |
| Ds Painting INC | Sanchez Daniel Casimiro | — | (909) 827 6591 | Windows, patio, painters | Fontana · San Bernardino County | — | — |
| Dsa Flooring LLC | Simon Aguilar | — | (562) 413 1356 | Other | Ontario · San Bernardino County | — | — |
| Dsm Construction INC | Jeff Ayotte | — | (909) 464 1991 | Other | Chino · San Bernardino County | — | — |
| Dsq General Construction | Silva Sergio Mata | info@dsqgeneralconstruction.com | (909) 682 2816 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Dss High Performance HVAC Solutions | Dss High Performance HVAC Solutions | — | (626) 677 7222 | HVAC | Ontario · San Bernardino County | — | — |
| Duane Serna Tile | Duane Serna Tile | — | (951) 333 1592 | Other | Chino · San Bernardino County | — | — |
| Duarte Joshua Allen | Duarte Joshua Allen | — | (909) 273 9437 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Dubuque INC | James Daniel Dubuque | — | (310) 991 0393 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Duffy Construction | Ryan Patrick Duffy | — | (951) 840 9456 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Dugo LLC | Robert Michael Verdugo | — | (949) 300 1682 | GC, remodel, ADU | Chino Hills · San Bernardino County | — | — |
| Duke Pacific INC | Cody Wyatt Wooldridge | — | (909) 591 0191 | GC, remodel, ADU | Chino · San Bernardino County | — | — |
| Duke Plumbing INC | Wesley Allen Duke | — | (909) 981 8200 | Other | Upland · San Bernardino County | — | — |
| Duke's Construction Co | Evelyn Arleen Duke | — | (909) 877 1189 | GC, remodel, ADU | Bloomington · San Bernardino County | — | — |
| Dunamis Builders & Restorations INC | Jose Alfonso Bucio Lopez | — | (909) 280 1694 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Dunbar Construction INC | Leo Richard Riboni | — | (833) 738 6227 | Electricians | Grand Terrace · San Bernardino County | — | — |
| Duncan Building | Duncan Building | — | (909) 435 5630 | GC, remodel, ADU | Forest Falls · San Bernardino County | — | — |
| Duncan Hutson Construction & Development INC | Andrew Duncan Hutson | — | (760) 964 4239 | GC, remodel, ADU | Hesperia · San Bernardino County | — | — |
| Dunford Roofing Co Ii | Dunford Eugene | — | (760) 247 3931 | Other roofers | Apple Valley · San Bernardino County | — | — |
| Dunhams Finish Carpentry | Dunhams Finish Carpentry | — | (909) 534 3457 | Other | San Bernardino · San Bernardino County | — | — |
| Dunn Construction LLC | Ryan William Dunn | — | (979) 484 0757 | GC, remodel, ADU | Chino Hills · San Bernardino County | — | — |
| Dunn Plumbing Heating & Air Conditioning INC | Joshua David Dunn | — | (909) 980 0644 | HVAC | Rancho Cucamonga · San Bernardino County | — | — |
| Dunning Construction | Jason Thomas Dunning | — | (909) 993 2803 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Dunnrite Painting INC | Mark Thomas Spitler | dunnritepainting7@gmail.com | (909) 754 4626 | Windows, patio, painters | Redlands · San Bernardino County | — | — |
| Dunright Heating & Air Conditioning | Guillermo Alejandro Murcio | — | (951) 385 8525 | HVAC | Phelan · San Bernardino County | — | — |
| Duo Cap Construction INC | Sean Seung Youn Lee | — | (909) 273 1975 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| Dura Floors | Dura Floors | — | (909) 496 9095 | Other | San Bernardino · San Bernardino County | — | — |
| Durham Construction | William Warren Durham | — | (760) 669 7503 | GC, remodel, ADU | Phelan · San Bernardino County | — | — |