| Douglas R Vance | Douglas R Vance | — | (760) 247 5700 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| Douma Concrete | Douma Concrete | — | (909) 702 5519 | Other | Ontario · San Bernardino County | — | — |
| Dove Construction | Jason Jeawon Lee | — | (213) 435 0039 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| Dowd Precision Grading | Gregory Michael Dowd | — | (909) 578 9837 | Other | Yucaipa · San Bernardino County | — | — |
| Down The Drain Plumbing INC | Jose Jesus Sitan-Martinez | — | (562) 479 2577 | Other | Rialto · San Bernardino County | — | — |
| Down To Earth Landscaping & Maintenance | Wesley Graham Harrower | — | (760) 799 2088 | Windows, patio, painters | Morongo Valley · San Bernardino County | — | — |
| Downey Construction | Daniel Evan Downey | — | (909) 994 6912 | GC, remodel, ADU | Twin Peaks · San Bernardino County | — | — |
| Downs Construction | Robert Allan Downs | — | (760) 954 4228 | Electricians | Victorville · San Bernardino County | — | — |
| Doza Build INC | Jesse Michael Mendoza | — | (909) 609 9657 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Dp Apex Construction INC | Pei Du | — | (626) 782 2747 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Dp Brown Construction Co | Donald Preston Brown | — | (760) 241 5211 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |
| Dp Plumbing & Sewer INC | David Matias Perez Hernandez | — | (800) 277 2792 | Other | Chino · San Bernardino County | — | — |
| Dp Renewables | Dp Renewables | — | (323) 359 3900 | Electricians | Hesperia · San Bernardino County | — | — |
| Dqe Electric INC | Danny Vazquez | — | (909) 782 9383 | Electricians | Pinon Hills · San Bernardino County | — | — |
| Dr Construction | Reynoso Daniel | — | (626) 864 0884 | GC, remodel, ADU | Chino · San Bernardino County | — | — |
| Dr Construction Service | J Richard Cooper | — | (909) 908 2517 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Dr Glazing | Dr Glazing | — | (503) 512 3105 | Windows, patio, painters | Victorville · San Bernardino County | — | — |
| Dr Rooter Plumbing | Dr Rooter Plumbing | — | (626) 320 5345 | Other | Chino · San Bernardino County | — | — |
| Dr Stainless | Dr Stainless | — | (909) 349 7723 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Dr Zekai Nazikoglu DBA Goddard's/nazco Services | Nazikoglu Zekai | — | (909) 888 5911 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Dr.soundz | Dr.soundz | — | (909) 381-0960 | Alarm and generators | San Bernardino · San Bernardino County | — | — |
| Dragon View Air Conditioning And Electrics INC | Zhang Jianlong | — | (909) 276 9993 | HVAC | Fontana · San Bernardino County | — | — |
| Dragonfly Landscape | Dragonfly Landscape | — | (951) 376 9469 | Windows, patio, painters | San Bernardino · San Bernardino County | — | — |
| Drain - Aid Plumbing | Drain - Aid Plumbing | — | (909) 804 8517 | Other | Crestline · San Bernardino County | — | — |
| Drain Edge Rooter | Isaiah Rudy Infante | info@drainedgerooter.com | (909) 927 3194 | Other | Rialto · San Bernardino County | — | — |
| Drain First INC | Jose Antonio Medina | eben@eyebytes.com | (800) 710 3319 | Other | Chino · San Bernardino County | — | — |
| Drain Surgeon INC | Lary Qirk Lewis-Hollins | — | (909) 419 3292 | Other | Fontana · San Bernardino County | — | — |
| Drain Tech Plumbing | Drain Tech Plumbing | — | (909) 913 3003 | Other | Big Bear City · San Bernardino County | — | — |
| Drainexperts.com | Raul Francisco Becerra | — | (909) 463 8114 | GC, remodel, ADU | Colton · San Bernardino County | — | — |
| Draper Properties | Draper Properties | — | (909) 996 3587 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| Dream Air Corp | Serna Raul Solano | — | (909) 327 1867 | HVAC | Fontana · San Bernardino County | — | — |
| Dream Coast Builders INC | Dwane Mc Michael Morrison | — | (909) 728 6422 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Dream Home Construction Services INC | Jose Juan Montanez | — | (442) 800 5281 | GC, remodel, ADU | Hesperia · San Bernardino County | — | — |
| Dream Home Inspections | Dream Home Inspections | dreamhomeinspections.hd@gmail.com | (760) 514-3790 | Inspectors | Hesperia · San Bernardino County | — | — |
| Dream Makers Enterprises INC | Leon Mendoza | — | (760) 927 2572 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |
| Dream Pools And Spas | Dream Pools And Spas | — | (909) 522 9981 | Pool | Highland · San Bernardino County | — | — |
| Dreamscapes & Construction Services | Gonzalo Jose Gutierrez | — | (909) 874 5321 | GC, remodel, ADU | Bloomington · San Bernardino County | — | — |
| Drf Rebar | Drf Rebar | — | (951) 206 0189 | Other | Ontario · San Bernardino County | — | — |
| Drill Sargeant INC | Jason Robert Sargeant | — | (626) 646 7647 | Other | Phelan · San Bernardino County | — | — |
| Drip Free Plumbing | Drip Free Plumbing | — | (909) 319 0808 | Other | Rialto · San Bernardino County | — | — |