| D & Y General Construction | Yan David | — | (510) 772 9139 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D & Y Wong Construction INC | Yan Na Wu | — | (510) 387 6318 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| D A D's Garden Service | Dan Dean Darnell | — | (510) 517 6264 | Windows, patio, painters | Castro Valley · Alameda County | — | — |
| D A S | D A S | — | (510) 506 1628 | Other | Oakland · Alameda County | — | — |
| D And B Painting Company INC | Derek Wayne Barrett | — | (866) 431 9869 | Windows, patio, painters | Oakland · Alameda County | — | — |
| D B A Construction INC | John Mateus De Jesus | andersonbuildinggroup@gmail.com | (408) 234 4328 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| D B General Contracting INC | Dustin Warren Boyce | — | (925) 462 4642 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| D B J Construction | David Brian Jackowitz | — | (510) 220 8546 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| D B Pacific Construction | Barcsa David | — | (650) 814 7964 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| D C Painting Co | Daniel Yookyu Cho | — | (510) 656 2977 | Windows, patio, painters | Fremont · Alameda County | — | — |
| D E L Construction Corporation | Zuo Qian Lin | — | (510) 220 2080 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| D Electric | Delgado Martinez Francisco | — | (510) 575 5223 | Electricians | Oakland · Alameda County | — | — |
| D F Custom Cabinets INC | David Flores | — | (510) 750 4524 | Other | Hayward · Alameda County | — | — |
| D G Concrete | D G Concrete | — | (510) 501 8967 | Other | Fremont · Alameda County | — | — |
| D H D Builders | D H D Builders | — | (510) 935 3789 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| D H Landscaping | D H Landscaping | — | (510) 219 7699 | Windows, patio, painters | San Leandro · Alameda County | — | — |
| D Haight Roofing Contractor | David John Haight | — | (510) 532 1504 | Other roofers | Union City · Alameda County | — | — |
| D I Construction INC | Qi Jin Chen | — | (510) 894 5400 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| D J Balling Construction | Dennis John Balling | — | (510) 713 9536 | GC, remodel, ADU | Newark · Alameda County | — | — |
| D K A Electric | Dayton John Akioka | — | (415) 318 9079 | Electricians | Oakland · Alameda County | — | — |
| D L Falk Construction INC | David Taylor Falk | — | (510) 887 6500 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| D L M Enterprises | Dennis Lee Meurer | — | (510) 482 9980 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D L R Custom Builders | D L R Custom Builders | — | (510) 384 5497 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D L T Construction Company | David Lee Thomas | — | (510) 395 0951 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D M C Construction | Douglas Barry Mcclarty | — | (510) 928 9282 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| D M G Construction | Duncan Joseph Woods | — | (925) 493 8940 | Other | Livermore · Alameda County | — | — |
| D M Jepsen INC | Moira Lisbeth Jepsen | — | (925) 455 0872 | Electricians | Livermore · Alameda County | — | — |
| D Montgomery Masonry | D Montgomery Masonry | — | (510) 677 8308 | Other | Castro Valley · Alameda County | — | — |
| D N H | D N H | — | (510) 963 9896 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| D N M Construction Co | David Neil Morain | — | (925) 339 5252 | GC, remodel, ADU | San Lorenzo · Alameda County | — | — |
| D P Electric | David Luis Perez | — | (510) 351 1615 | Electricians | San Leandro · Alameda County | — | — |
| D P Heating & Air Conditioning | Price Daryl | — | (510) 532 2043 | HVAC | Oakland · Alameda County | — | — |
| D P L General Construction | Luis Delgado Pelayo | — | (510) 703 1954 | GC, remodel, ADU | San Lorenzo · Alameda County | — | — |
| D R Construction | Jon Lloyd Dickinson | — | (510) 812 8003 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D R L Construction | Li Da Ru | — | (510) 388 9821 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D R T Grading & Paving INC | Russell John Scheibley | — | (925) 862 9900 | Other | Sunol · Alameda County | — | — |
| D R Walterson Construction | Darell Randy Walterson | — | (925) 963 3648 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| D S Baxley INC DBA D S B + | Daniel Silas Baxley | — | (925) 371 3950 | Other | Livermore · Alameda County | — | — |
| D S P Construction INC | Daniel Steven Phillips | — | (925) 846 2606 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| D T N Construction | David Tang Ngu | — | (510) 910 1186 | GC, remodel, ADU | Hayward · Alameda County | — | — |