| D Tellez Construction LLC | Jose Daniel Tellez | daniel@dtellezconstruction.com | (510) 564 6159 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| D V Construction | David Hoi Voong | — | (510) 213 1088 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D V F Construction | David Valente Freese | — | (925) 989 5264 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| D V T Landscaping | D V T Landscaping | — | (408) 550 0674 | Windows, patio, painters | Hayward · Alameda County | — | — |
| D W Hamilton Construction Company | Delbert Wallace Hamilton | — | (510) 919 0046 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D W Henninger Construction | Dean William Henninger | — | (510) 314 5783 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D W Nicholson Corporation | Thomas Stewart Jr Reed | — | (510) 887 0900 | HVAC | Hayward · Alameda County | — | — |
| D Zaballos Construciton General Contracting | Darrell Scott Zaballos | — | (510) 719 5981 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| D's General Engineering | Vladimir Montelongo | compliance@getds.org | (510) 706 5711 | Other | Oakland · Alameda County | — | — |
| D-line Constructors INC | Josue Antonio Iii Prada | — | (510) 251 6400 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| D-tech Roofing And Waterproofing | Damario Lafonce Hodges | — | (510) 860 7243 | Other roofers | Oakland · Alameda County | — | — |
| D.k. Construction | Kovacevic Darko | — | (925) 998 3977 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| D3 Environmental Engineering | D3 Environmental Engineering | info@d3environmentalengineering.com | (510) 520 9614 | Other | Alameda · Alameda County | — | — |
| Da Kun Lin | Da Kun Lin | — | (510) 866 4055 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Daedalus Construction | Kevin Michael Adza | — | (510) 589 6654 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Dahlia Landscaping INC | Francisco Jimenez | — | (510) 825 2429 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Dale A Miller | Dale A Miller | — | (925) 973 7301 | HVAC | Livermore · Alameda County | — | — |
| Dale Reis | Dale Reis | — | (510) 648 0047 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Dale's Excavating | Dale's Excavating | — | (510) 506 5302 | Other | Alameda · Alameda County | — | — |
| Daly Builders Group | Zhao Wei-lin | — | (415) 722 2306 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| Damon Bleth DBA D B Tile | D B Tile | — | (510) 828 8118 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Dan Electric | Michovich Rayo | — | (510) 351 7100 | Electricians | San Leandro · Alameda County | — | — |
| Dan Iwase Building And Construction | Dan Tai Iwase | — | (510) 365 9739 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Dane Electric | Dennis Adolf Nielsen | — | (510) 528 4694 | Electricians | Berkeley · Alameda County | — | — |
| Danel INC | Rayo Michovich | — | (510) 282 8820 | Electricians | San Leandro · Alameda County | — | — |
| Dang's Brother Construction | Cong Phon Dang | — | (510) 816 1648 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Dang's Construction | Cong Phon Dang | — | (510) 388 7666 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Dang's Home Innovation | Cong Phon Dang | — | (510) 316 5390 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Daniel & Son's Hardwood Floors | Mariano Alvarado | — | (510) 557 4660 | Other | Fremont · Alameda County | — | — |
| Daniel Awand Building And Design | Daniel Awand Building And Design | — | (925) 451 3910 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Daniel Brain | Daniel Brain | — | (415) 290 4863 | GC, remodel, ADU | Emeryville · Alameda County | — | — |
| Daniel Caraco General Contractor | Daniel Caraco General Contractor | — | (510) 306 8644 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Daniel Cisneros DBA D C Plumbing | D C Plumbing | — | (510) 456 6210 | Other | Newark · Alameda County | — | — |
| Daniel Dole Artist Blacksmith - Codornices Forge | Daniel Hilton Dole | — | (510) 524 4728 | Other | Berkeley · Alameda County | — | — |
| Daniel Electric Company | Gao Daniel | — | (510) 325 5309 | Electricians | Alameda · Alameda County | — | — |
| Daniel Fahrner | Daniel Fahrner | — | (510) 589 9490 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Daniel Hurst | Daniel Hurst | hello.danielhurst@gmail.com | (510) 205 5171 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| Daniel Jones | Daniel Jones | — | (925) 605 8409 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| Daniel L Marks INC DBA Marina Plumbing Company | Daniel Lester Marks | — | (925) 600 8955 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| Daniel Larsen Builders INC | Daniel Arthur Larsen | — | (510) 769 6227 | GC, remodel, ADU | Alameda · Alameda County | — | — |