| Duskworks LLC | Zachary Michael Suddjian | — | (877) 375 9757 | Other | Irvine · Orange County | — | — |
| Dust Collector Services INC | Timothy Jay Schlentz | — | (714) 237 1690 | GC, remodel, ADU | Anaheim · Orange County | — | — |
| Dv Construction & Landscaping | Dzung Trong Vo | — | (714) 271 1442 | GC, remodel, ADU | Garden Grove · Orange County | — | — |
| Dv Construction INC | Dinh Chieu Nguyen | — | (714) 467 5393 | GC, remodel, ADU | Garden Grove · Orange County | — | — |
| Dv Engineering | Dv Engineering | — | (949) 310 3757 | Other | Garden Grove · Orange County | — | — |
| Dvd Construction | Dustin Van Do | — | (949) 864 9986 | GC, remodel, ADU | Santa Ana · Orange County | — | — |
| Dvp INC | Robert Dean Wolf | — | (714) 442 4442 | GC, remodel, ADU | Orange · Orange County | — | — |
| Dw Construction | David Arthur Wessels | — | (714) 654 8554 | GC, remodel, ADU | Huntington Beach · Orange County | — | — |
| Dw Macgregor General Building Contractors | Donald William Macgregor | — | (714) 713 4956 | GC, remodel, ADU | Placentia · Orange County | — | — |
| Dwa Plumbing INC | Derrick Wesley Aiken | — | (562) 882 6659 | Other | Los Alamitos · Orange County | — | — |
| Dwell Home Services | Jake W Winkle | — | (949) 873 3125 | GC, remodel, ADU | Costa Mesa · Orange County | — | — |
| Dwi Enterprises | Fred Peter Delgleize | — | (714) 842 2236 | GC, remodel, ADU | Los Alamitos · Orange County | — | — |
| Dy Pacific Paint | Dy Pacific Paint | — | (714) 721 9190 | Windows, patio, painters | Santa Ana · Orange County | — | — |
| Dymek's Freedom Plumbing INC | Ronald Joseph Dymek | — | (714) 632 8989 | Other | Placentia · Orange County | — | — |
| Dymond Builders INC | Donna Lavon Dymond | — | (714) 632 5200 | GC, remodel, ADU | Anaheim · Orange County | — | — |
| Dyna- Lux Electric | Marrufo Dan | — | (949) 544 0516 | Electricians | Irvine · Orange County | — | — |
| Dynacon | Cynthia Jane Grabow | — | (714) 803 0163 | GC, remodel, ADU | Huntington Beach · Orange County | — | — |
| Dynacor Construction Corporation | Douglas Edward Conrady | — | (949) 274 8705 | GC, remodel, ADU | Newport Beach · Orange County | — | — |
| Dynaforce Electric Company | Kourosh Rezvani Ghadimi | — | (714) 345 0811 | Electricians | Cypress · Orange County | — | — |
| Dynaguard | Russell David Mascarenas | — | (714) 771 7411 | GC, remodel, ADU | Orange · Orange County | — | — |
| Dynamic Construction Services INC | James Jason Russell | — | (714) 887 6293 | Other | Huntington Beach · Orange County | — | — |
| Dynamic Cooling And Heating | Kevin Fredrick Bernatzke | — | (714) 724 5757 | HVAC | Placentia · Orange County | — | — |
| Dynamic Designs | Dynamic Designs | — | (562) 365 8222 | Electricians | Buena Park · Orange County | — | — |
| Dynamic Electrical Solutions INC | John Arthur Molina | — | (714) 907 3325 | Electricians | Huntington Beach · Orange County | — | — |
| Dynamic Kontractors | Raul Eduardo Oregel Flores | — | (562) 302 7420 | GC, remodel, ADU | Santa Ana · Orange County | — | — |
| Dynamic Restoration Pro LLC | Jorge Esteban Roman Villalobos | — | (714) 936 5638 | GC, remodel, ADU | Santa Ana · Orange County | — | — |
| Dynamic Roofing Co | Ricardo Eduardo Acosta | — | (949) 445 2708 | Other roofers | Tustin · Orange County | — | — |
| Dynamic Systems Electric INC | Juan Carlos Gomez | — | (714) 742 2747 | Electricians | Fullerton · Orange County | — | — |
| Dynamic Vision Contruction | Dynamic Vision Contruction | — | (408) 947 8888 | GC, remodel, ADU | Costa Mesa · Orange County | — | — |
| Dynamics Construction | Valean Valentin | — | (714) 588 2352 | GC, remodel, ADU | Anaheim · Orange County | — | — |
| Dynasty Electric | Rudy Barajas Acosta | — | (714) 851 5176 | Electricians | Anaheim · Orange County | — | — |
| Dynatech Products & Landscape | Dynatech Products & Landscape | — | (714) 743 3044 | Windows, patio, painters | Fullerton · Orange County | — | — |
| E & D General Builders LLC | David Alcaraz-Mata | — | (310) 987 3885 | GC, remodel, ADU | Fullerton · Orange County | — | — |
| E & E Construction | Samuel Rodolfo Escamilla | — | (310) 709 8059 | GC, remodel, ADU | Laguna Niguel · Orange County | — | — |
| E & E Painting | E & E Painting | — | (714) 537 0884 | GC, remodel, ADU | Garden Grove · Orange County | — | — |
| E & E Roofing INC | Aguilar Emilio Espinoza | — | (714) 906 2369 | Other roofers | Orange · Orange County | — | — |
| E & G Custom Tile & Granite INC | Gamboa Esteban | — | (714) 863 9103 | Other | Anaheim · Orange County | — | — |
| E & H Construction Co INC | Esfandiar Amirhekmat | — | (949) 248 5444 | GC, remodel, ADU | Laguna Niguel · Orange County | — | — |
| E & M Tile And Marble INC | Elmar William Munoz | — | (714) 715 7519 | Other | Costa Mesa · Orange County | — | — |
| E & R Refinishing | Yazmin Barrera | — | (714) 909 8078 | Other | Garden Grove · Orange County | — | — |