| Diaz Leal Drywall INC | Roberto Agustin Diaz Leal-De La Luz | — | (714) 770 3378 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Diaz Leal Painting | Diaz Leal Painting | djosel1234@gmail.com | (909) 648 9029 | Windows, patio, painters | Big Bear Lake · San Bernardino County | — | — |
| Diaz Painting | Luis Alberto Diaz-Ruiz | — | (909) 486 4588 | Windows, patio, painters | San Bernardino · San Bernardino County | — | — |
| Diaz Rack INC | Alejandro Diaz | — | (909) 697 5079 | Other | Fontana · San Bernardino County | — | — |
| Dib's Safe And Lock Service | David Jay C Carter | — | (909) 885 0452 | Other | San Bernardino · San Bernardino County | — | — |
| Dicarlo Concrete INC | Mario Anthony Di Carlo | — | (909) 899 0004 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Dick Farrell Industries INC | Timothy John Farrell | — | (909) 613 9424 | Other | Chino · San Bernardino County | — | — |
| Dick Oosterheert | Dick Oosterheert | — | (909) 579 0248 | Windows, patio, painters | Rancho Cucamonga · San Bernardino County | — | — |
| Dickey Construction | Darren Gene Dickey | — | (909) 501 1091 | GC, remodel, ADU | Highland · San Bernardino County | — | — |
| Diego Juarez Welding Fabrication | Diego Juarez Welding Fabrication | — | (909) 567 6345 | Other | Victorville · San Bernardino County | — | — |
| Diehard Concrete | Diehard Concrete | — | (562) 665 4209 | Other | Chino · San Bernardino County | — | — |
| Differ Construction INC | Jose Reynoso Padilla | — | (909) 252 2342 | GC, remodel, ADU | Highland · San Bernardino County | — | — |
| Dig Co Pipeline | Casey Ray Benito | — | (760) 660 8020 | Other | Yucca Valley · San Bernardino County | — | — |
| Dig It Excavation | Dig It Excavation | — | (951) 453 3951 | Pool | Fontana · San Bernardino County | — | — |
| Digital Design Technology | Digital Design Technology | — | (909) 697 9232 | Other | Upland · San Bernardino County | — | — |
| Digital Technologies INC | Daniel Robert Villareal | — | (909) 563 8703 | Electricians | Ontario · San Bernardino County | — | — |
| Diligence General Construction INC | Juan Ramon Jr Mendoza | — | (949) 903 8855 | GC, remodel, ADU | Hesperia · San Bernardino County | — | — |
| Dillon Home Services INC | William David Andrew Dillon | — | (909) 645 1565 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Dima Construction & Electric | Juan Jose Diaz | — | (626) 392 4570 | Electricians | San Bernardino · San Bernardino County | — | — |
| Dime Design LLC | Lawrence Kelvin Chand | — | (626) 422 7449 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| Dina Contractor Services | Ronald Eduardo Cardenas | — | (951) 906 9027 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Dinarte Construction Consulting | Isaac Dinarte Retena | contact@sansoxygen.com | (760) 508 6059 | GC, remodel, ADU | Hesperia · San Bernardino County | — | — |
| Dinh Construction Corporation | Dinh Nhiem Do | — | (909) 427 8891 | GC, remodel, ADU | Rialto · San Bernardino County | — | — |
| Direct Connect Electric | Larry Layne Bonine | — | (760) 885 3892 | Electricians | Victorville · San Bernardino County | — | — |
| Direct Quality Auto Glass | Direct Quality Auto Glass | directqualityautoglass@gmail.com | (909) 251-6568 | Windows, patio, painters | San Bernardino · San Bernardino County | — | — |
| Direct Shower Door | Direct Shower Door | — | (800) 715 0031 | Windows, patio, painters | Upland · San Bernardino County | — | — |
| Direct Source Communication INC | Freddy Jr Perez | — | (323) 359 3953 | Electricians | Ontario · San Bernardino County | — | — |
| Dirk Charron Plumbing | Dirk Charron Plumbing | — | (909) 938 8858 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Disabled Veteran Modular Buildings INC | Francisco Alvarado | — | (951) 795 5920 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| Discount Plumbing | Discount Plumbing | — | (760) 780 0606 | Other | Helendale · San Bernardino County | — | — |
| Discovery Cleanup INC | Benny Robert Mendez | — | (909) 697 4173 | Other | Fontana · San Bernardino County | — | — |
| Distinct Designs Construction | Nicholas Robert Aguilar | distinctdesigns360@gmail.com | (760) 221 4290 | GC, remodel, ADU | Yucca Valley · San Bernardino County | — | — |
| Distinctive Landscape | Distinctive Landscape | — | (909) 590 7780 | Windows, patio, painters | Chino · San Bernardino County | — | — |
| Diverse Builders INC | Rojero Cristian | interested@domainmarket.com | (562) 739 0103 | GC, remodel, ADU | Chino Hills · San Bernardino County | — | — |
| Diverse Mechanical Solutions Heating And Air | Isse Adad Ahmed | — | (714) 833 3346 | HVAC | Adelanto · San Bernardino County | — | — |
| Diversifab INC | Jaime Tereso Lopez - Tiana | — | (909) 923 6789 | Other | Ontario · San Bernardino County | — | — |
| Diversified Glass INC | Timothy Roy Weis | — | (760) 244 7884 | Windows, patio, painters | Hesperia · San Bernardino County | — | — |
| Diversified HVAC | Diversified HVAC | — | (760) 365 6740 | HVAC | Yucca Valley · San Bernardino County | — | — |
| Diversified Skills Services | Jeffrey Raymond Wilson | — | (760) 369 7338 | Other | Yucca Valley · San Bernardino County | — | — |
| Diversify Construction Incorporated | Benjamin Andrew Felix | — | (626) 523 2136 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |