| A D F Sewer Plumbing | A D F Sewer Plumbing | — | (916) 470 7008 | Other | Sacramento · Sacramento County | — | — |
| A D Family Plumbing Services | Vasquez Alejandro Diaz | — | (510) 512 5029 | Other | Pittsburg · Contra Costa County | — | — |
| A D Flooring | Toro Adrian Nino-Del | — | (916) 709 7880 | Other | Elk Grove · Sacramento County | — | — |
| A D G Automation | Mckay Everett Turnbull | mckayturnbull@me.com | (760) 271 1832 | Other | Carlsbad · San Diego County | — | — |
| A D G Construction And Roofing | David Swisa | — | (310) 436 5094 | Other roofers | Tarzana · Los Angeles County | — | — |
| A D G Tile & Stone | Aaron Dixon Gayer | — | (562) 458 9633 | Other | Anaheim · Orange County | — | — |
| A D Hauling | A D Hauling | — | (510) 914 3740 | Other | Richmond · Contra Costa County | — | — |
| A D Heating & Air | A D Heating & Air | — | (714) 651 1492 | HVAC | Orange · Orange County | — | — |
| A D I Engineering | Claitn Marc Antaya | — | (951) 698 0044 | Other | Murrieta · Riverside County | — | — |
| A D I Fire Protection INC | Wilber Alexander Martinez-Monterrosa | — | (818) 941 8645 | Other | Sun Valley · Los Angeles County | — | — |
| A D Improvements INC | Acosta Roberto | — | (562) 803 6134 | GC, remodel, ADU | Downey · Los Angeles County | — | — |
| A D Investor LLC | Wayne Kin Chang | — | (626) 228 5570 | GC, remodel, ADU | Monterey Park · Los Angeles County | — | — |
| A D Iron Work INC | Alberto Diaz | — | (818) 437 0917 | GC, remodel, ADU | Sylmar · Los Angeles County | — | — |
| A D K Construction INC | Stephen Glenn Adkison | — | (661) 212 4353 | GC, remodel, ADU | Port Hueneme · Ventura County | — | — |
| A D L C | A D L C | — | (909) 244 9646 | Other | Alta Loma · San Bernardino County | — | — |
| A D L Professional Insulation | Adolfo Daniel Luperdi | — | (408) 771 6324 | Other | Antioch · Contra Costa County | — | — |
| A D L Window Coverings | Anthony Alejandro Mendoza | — | (310) 866 9435 | Other | Palmdale · Los Angeles County | — | — |
| A D M Builders INC | Mihessian Ardush Der | — | (818) 535 5572 | GC, remodel, ADU | Encino · Los Angeles County | — | — |
| A D M Custom Remodeling | A D M Custom Remodeling | — | (408) 398 3307 | GC, remodel, ADU | Morgan Hill · Santa Clara County | — | — |
| A D M Electric | Bitton Isaac | — | (213) 479 8391 | Electricians | Valley Village · Los Angeles County | — | — |
| A D M Electric INC | Isaac Bitton | — | (818) 961 4072 | Electricians | Valley Glen · Los Angeles County | — | — |
| A D M Mechanical | A D M Mechanical | — | (916) 455 7462 | HVAC | Sacramento · Sacramento County | — | — |
| A D M Painting And Construction | Lozano Julio | — | (310) 912 5736 | GC, remodel, ADU | Cudahy · Los Angeles County | — | — |
| A D Management | A D Management | — | (530) 263 8240 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| A D Melchner General Engineering | A D Melchner General Engineering | — | (415) 410 7831 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| A D N Plumbing | A D N Plumbing | — | (818) 266 2219 | Other | Northridge · Los Angeles County | — | — |
| A D O'bannon Builder | A D O'bannon Builder | adobuilder@gmail.com | (707) 322 2372 | GC, remodel, ADU | Mt Shasta · Siskiyou County | — | — |
| A D Painting | A D Painting | — | (562) 863 3881 | Windows, patio, painters | Norwalk · Los Angeles County | — | — |
| A D Pipeline | A D Pipeline | — | (951) 352 3556 | Other | Riverside · Riverside County | — | — |
| A D Plumbing | A D Plumbing | — | (925) 800 9918 | Other | West Sacramento · Yolo County | — | — |
| A D Plumbing & Contractors INC | Abel Puerta Ramirez | — | (818) 437 0335 | GC, remodel, ADU | Arleta · Los Angeles County | — | — |
| A D R Construction Innovators INC | Alfonso Rodriguez Alcaraz | — | (661) 803 9730 | GC, remodel, ADU | Santa Clarita · Los Angeles County | — | — |
| A D R Fire Protection | A D R Fire Protection | — | (510) 750 3909 | Other | Union City · Alameda County | — | — |
| A D R Garage Doors | A D R Garage Doors | — | (562) 900 2998 | Other | Cypress · Orange County | — | — |
| A D R Security Systems INC | Nejad Ataola Esmaily | — | (213) 622 5969 | Electricians | Los Angeles · Los Angeles County | — | — |
| A D Robinson Plastering | A D Robinson Plastering | — | (805) 489 7193 | Other | Arroyo Grande · San Luis Obispo County | — | — |
| A D Roofing | Diodoro Alejandro | — | (714) 478 5072 | Other roofers | Buena Park · Orange County | — | — |
| A D S Construction | Alfred Daniel Stevens | — | (530) 957 5301 | GC, remodel, ADU | Rescue · El Dorado County | — | — |
| A D S Design & Construction | Douglas Lynn Caleb Rhodes | — | (916) 759 6730 | GC, remodel, ADU | Roseville · Placer County | — | — |
| A D S Flooring A Partnership | Adam David Slaugh | — | (916) 745 1237 | Other | Auburn · Placer County | — | — |