| Desilva Gates - Anvil Builders A Joint Venture | Builders INC Anvil | — | (925) 829 9220 | Electricians | Dublin · Alameda County | — | — |
| Desilva Gates - Ghilotti A Joint Venture | Construction Company INC Ghilotti | — | (925) 361 1533 | Other | Dublin · Alameda County | — | — |
| Desilva Gates - Pacific States A Joint Venture | States Environmental Contractors INC Pacific | — | (925) 829 9220 | Other | Dublin · Alameda County | — | — |
| Desilva Gates Construction LLC | David Edwin De Silva | — | (925) 829 9220 | Other | Dublin · Alameda County | — | — |
| Desilva Gates Construction LLC - Mcm A Joint Venture | C M Construction INC M | — | (925) 829 9220 | Other | Dublin · Alameda County | — | — |
| Desilva Gates-viking A Joint Venture | Construction Company INC Viking | — | (925) 829 9220 | Other | Dublin · Alameda County | — | — |
| Desilvagates Construction - Vanguard A Joint Venture | B D Vanguard Construction INC F | — | (925) 829 9220 | GC, remodel, ADU | Dublin · Alameda County | — | — |
| Deskins Plumbing INC | Gary Andre Deskins | — | (510) 923 0400 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Detail Drywall & Stucco INC | Sheldon Wade Doty | admin@detailds.com | (415) 810 4902 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Detention Device Systems | Steven Robert Allington | — | (510) 783 0771 | Electricians | Hayward · Alameda County | — | — |
| Dev Builders INC | Sukhdev Singh | info@devbuilders.com | (510) 461 6152 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Devco Design & Construction | Sinan Mehmet Sabuncuoglu | — | (510) 652 6066 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Dg Casework Installation | Danilo Antonio Galvez Acevedo | — | (510) 919 4825 | Other | Hayward · Alameda County | — | — |
| Dgn Builders INC | Surinder Singh Makkar | — | (408) 766 1565 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Diablo Designs Tile And Marble | Diablo Designs Tile And Marble | — | (925) 484 1591 | Other | Pleasanton · Alameda County | — | — |
| Diablo Electric INC | Thomas Paul Hirsch | quotes@diabloelectric.com | (925) 463 3000 | Electricians | Pleasanton · Alameda County | — | — |
| Diablo Mountain Construction LLC | Zachary Dang Boelsterli | — | (925) 771 0778 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Diablo Oasis Pools | Diablo Oasis Pools | diablooasispools@sbcglobal.net | (510) 919 0319 | Pool | Pleasanton · Alameda County | — | — |
| Diablo Plumbing INC | John William Ontiveros | service@diabloplumbing.com | (925) 463 7900 | Other | Pleasanton · Alameda County | — | — |
| Diablo Roofing INC | Omar Marin | — | (510) 600 5394 | Other roofers | Hayward · Alameda County | — | — |
| Diablo Stoneworks | Joel Vasquez Sr Huerta | — | (510) 816 0459 | Other | Livermore · Alameda County | — | — |
| Diablo West Roofing | Grant Van Smart | — | (925) 417 1010 | Other roofers | Pleasanton · Alameda County | — | — |
| Diagram Design Build INC | Viet Quoc Truong | — | (510) 672 0005 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| Diamond Edge Construction INC | Jesse Joseph Padilla | — | (510) 584 7387 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| Diamond General INC | Crescencio Sandoval | — | (510) 719 9073 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Diamond Head Electric | Christopher Anthony Boyle | — | (808) 478 5084 | Electricians | Hayward · Alameda County | — | — |
| Diamond Stone Fabrication | Diamond Stone Fabrication | — | (510) 427 7114 | Other | Castro Valley · Alameda County | — | — |
| Diamondstar Floor Polisher | Diamondstar Floor Polisher | — | (510) 314 9236 | Other | Hayward · Alameda County | — | — |
| Diaz & J Painting | Gipsy Lui Diaz Alaniz | — | (800) 270 7065 | Windows, patio, painters | Fremont · Alameda County | — | — |
| Diaz Construction | Jose Guadalupe Diaz Villalpando | — | (510) 347 1600 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| Diaz Construction | Edgardo Javier Diaz Reyes | — | (650) 454 9122 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Dib Construction | Fadi Adib Dib | — | (510) 432 3946 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Dich Construction | Dich Raymond | — | (510) 318 0817 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Dick's Wholesale Carpet Warehouse INC | Daniel Eugene Jr Biles | — | (510) 633 9533 | Other | Oakland · Alameda County | — | — |
| Dickinson Hardwood Flooring INC | Michael Adams Dickinson | — | (925) 931 1820 | Other | Pleasanton · Alameda County | — | — |
| Diebold Construction Incorporated | Marc Jeffrey Diebold | — | (415) 410 7510 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| Dig Cooperative Incorporated | Babak Jacinto Tondre | — | (510) 560 4865 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Digital Design Communications | George Herman Duncan | — | (510) 632 0650 | Electricians | Oakland · Alameda County | — | — |
| Digital Interior Group-california | Jose Eduardo Galvan Caballero | — | (510) 410 0929 | Other | Hayward · Alameda County | — | — |
| Dimensions In Tile | Dimensions In Tile | — | (510) 706 0450 | Other | San Leandro · Alameda County | — | — |