| Dimond Plumbing And Heating | Dimond Plumbing And Heating | — | (510) 530 1144 | HVAC | San Leandro · Alameda County | — | — |
| Dinardo Design And Construction INC | Karen Ann Dinardo | — | (510) 482 2777 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Dingsheng Construction INC | Yan Nian | — | (408) 687 5111 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Dino Ceramic Tile | Dino Ceramic Tile | — | (510) 502 1235 | Other | San Leandro · Alameda County | — | — |
| Direct Current Systems | Matthew Steven Hendry | — | (925) 778 6370 | Electricians | Livermore · Alameda County | — | — |
| Direct Line Global LLC | Trino Clemente Ramirez | — | (510) 385 6166 | Other | Fremont · Alameda County | — | — |
| Direct Sales Floors | Joseph Albert Willits | danw@directsalesfloors.com | (510) 538 5000 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Disco Bay Electrical | Jason Michael Mcintosh | — | (925) 337 1958 | Electricians | Livermore · Alameda County | — | — |
| Discount Carpet Store | Discount Carpet Store | — | (510) 268 1706 | Other | Oakland · Alameda County | — | — |
| Discover Landscaping | Discover Landscaping | — | (925) 454 1137 | Windows, patio, painters | Livermore · Alameda County | — | — |
| Distinctive Construction | Daniel Patrick Walker | — | (714) 697 3605 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Division 8 Resource Incorporated | Jonathan Gary Rosendall | — | (510) 969 4152 | Windows, patio, painters | San Leandro · Alameda County | — | — |
| Dj Refrigeration Services | Daniel Manuel Jesus | — | (510) 363 7689 | HVAC | Fremont · Alameda County | — | — |
| Djp Construction | Da Jia Pan | — | (510) 878 0287 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Djswm C15 INC | David A Samuelson | — | (925) 426 8800 | Other | Pleasanton · Alameda County | — | — |
| Dk Engineering & Consulting INC | David King | — | (415) 653 9620 | Other | Oakland · Alameda County | — | — |
| Dle Construction | John Anthony Ii Moffat | — | (925) 202 7990 | Other | Pleasanton · Alameda County | — | — |
| Dma Construction | Dennis Michael Addiego | — | (925) 963 6611 | GC, remodel, ADU | Dublin · Alameda County | — | — |
| Dmitry Klimko | Dmitry Klimko | — | (510) 734 4318 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Dms Painting | Dms Painting | contact@sansoxygen.com | (510) 640 3786 | Windows, patio, painters | Hayward · Alameda County | — | — |
| Dmsquare Construction 2 INC | Dan Vi Fung | — | (415) 806 6687 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| Dng Plumbing INC | Don Christopher Ortega | anapbm@gmail.com | (925) 628 0055 | Other | Hayward · Alameda County | — | — |
| Do All Properties General Building Construction LLC | Chester Mali | — | (510) 913 3333 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Doc's Plumbing | Doc's Plumbing | — | (510) 792 1584 | Other | Newark · Alameda County | — | — |
| Dockery General Contractor | Dockery General Contractor | — | (510) 851 5069 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Dogtown Design Build LLC | Breeze Marie Braunschweig | — | (323) 595 0010 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| Dogtown Development Company LLC | John David Kuhner | — | (510) 283 1588 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Dold Construction | Edward Joseph Dold | — | (510) 381 2950 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Dollar Drain And Rooter | Al Mamangon Jerusalem | — | (925) 292 9526 | Other | Livermore · Alameda County | — | — |
| Domach INC | Timothy Merle Beard | — | (925) 217 7712 | Other | Livermore · Alameda County | — | — |
| Dominic Martin DBA D W Construction | Dominic Walter Martin | — | (510) 690 4894 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Don Construction & Landscaping | Minh Van Hoang | — | (540) 519 8456 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Don E Murphy Construction | Donald Edward Murphy | — | (925) 408 5458 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Don Pickett Electrical | Donald Ray Pickett | — | (510) 228 7734 | Electricians | Oakland · Alameda County | — | — |
| Don's Electrical Works | Donald Michael Plevin | — | (415) 517 2843 | Electricians | Hayward · Alameda County | — | — |
| Donahue Backhoe & Construction Co | Kevin Dale Donahue | — | (510) 206 2099 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| Donald Kiehn Company | Donald Walter Kiehn | — | (510) 531 4351 | Other | Oakland · Alameda County | — | — |
| Done Right Painters Co | Willard Wesley Thomas | — | (510) 774 4215 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Dong Design-build | Dong Design-build | — | (510) 759 6780 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Dong's Construction | Hoat Phuc Nguyen | — | (510) 292 0148 | Electricians | Oakland · Alameda County | — | — |