| Ad Construction Equipment INC | Andrew D Jr Dillard | — | (310) 817 5640 | Other | Gardena · Los Angeles County | — | — |
| Ad Electric | Daniel Alex Levine | — | (949) 735 6931 | Electricians | Long Beach · Los Angeles County | — | — |
| Ad Electrical Advertising INC | Paul Rui-Chong Wu | — | (626) 448 1166 | Other | Rosemead · Los Angeles County | — | — |
| Ad Elite Construction INC | Aaron Delgadillo | — | (323) 818 9581 | GC, remodel, ADU | Whittier · Los Angeles County | — | — |
| Ad Fence Company INC | Andrew Joseph Villasenor | — | (714) 292 9783 | GC, remodel, ADU | Whittier · Los Angeles County | — | — |
| Ad Installs Corp | Vahe Krikor Tamamian | — | (818) 817 1682 | GC, remodel, ADU | Chatsworth · Los Angeles County | — | — |
| Ad Mechanical INC | Alexander Derg | — | (323) 842 5515 | HVAC | Granada Hills · Los Angeles County | — | — |
| Ad Remodeling | Gomez Jesse Aranzolo | — | (323) 947 9404 | GC, remodel, ADU | Compton · Los Angeles County | — | — |
| Ad Remodeling & Construction INC | Guy Morris Samipur | — | (818) 216 4697 | GC, remodel, ADU | West Hills · Los Angeles County | — | — |
| Ad Tech Electric INC | Artak Davtyan | — | (323) 393 5557 | Electricians | Porter Ranch · Los Angeles County | — | — |
| Ad Window Tinting | Ad Window Tinting | — | (424) 274 1448 | Other | Santa Monica · Los Angeles County | — | — |
| Ada Builders INC | Assouline David | — | (818) 930 6327 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| Ada Compliance Professionals INC | Mark Stephen Tudor | — | (424) 262 9002 | GC, remodel, ADU | Pasadena · Los Angeles County | — | — |
| Ada Mechanical INC | Arameh Dilanchian | — | (818) 391 8046 | HVAC | Porter Ranch · Los Angeles County | — | — |
| Adagio Woodworking | Adagio Woodworking | — | (818) 707 4542 | GC, remodel, ADU | Agoura Hills · Los Angeles County | — | — |
| Adair Custom Builders | Adair Custom Builders | — | (310) 864 6648 | GC, remodel, ADU | Manhattan Beach · Los Angeles County | — | — |
| Adair Painting And Finishes | Adair Painting And Finishes | — | (626) 755 7786 | Windows, patio, painters | Pasadena · Los Angeles County | — | — |
| Adalberto Jeronimo Prado | Adalberto Jeronimo Prado | — | (626) 483 8343 | GC, remodel, ADU | West Covina · Los Angeles County | — | — |
| Adam Acosta | Adam Acosta | — | (626) 251 6678 | GC, remodel, ADU | Baldwin Park · Los Angeles County | — | — |
| Adam Aguirre | Adam Aguirre | — | (562) 676 2747 | Pool | Long Beach · Los Angeles County | — | — |
| Adam And Son Construction | Yegoyan Adam | — | (818) 642 5072 | GC, remodel, ADU | North Hollywood · Los Angeles County | — | — |
| Adam Dweck Construction | Dweck Adam | — | (323) 819 4682 | GC, remodel, ADU | North Hollywood · Los Angeles County | — | — |
| Adam Heating And Air Conditioning LLC | Robert Adam Martinez | — | (562) 348 6919 | HVAC | Lancaster · Los Angeles County | — | — |
| Adam Hill Plumbing | Adam Hill Plumbing | — | (562) 243 3021 | Other | Signal Hill · Los Angeles County | — | — |
| Adam J Kender | Adam J Kender | — | (661) 886 4602 | Other | Lancaster · Los Angeles County | — | — |
| Adam L Bressler | Adam L Bressler | — | (917) 856 6105 | GC, remodel, ADU | West Hollywood · Los Angeles County | — | — |
| Adam Sappenfield DBA Allied Glass | Adam Sappenfield DBA Allied Glass | — | (562) 477 9830 | Windows, patio, painters | Long Beach · Los Angeles County | — | — |
| Adam Schemerhorn | Adam Schemerhorn | — | (310) 922 2744 | Windows, patio, painters | Los Angeles · Los Angeles County | — | — |
| Adam Shavitz Zane | Adam Shavitz Zane | — | (818) 373 7733 | GC, remodel, ADU | Encino · Los Angeles County | — | — |
| Adam Siefke Painting | Adam Siefke Painting | — | (626) 658 6014 | Windows, patio, painters | Monrovia · Los Angeles County | — | — |
| Adam Slutske | Adam Slutske | — | (800) 824 9350 | GC, remodel, ADU | Torrance · Los Angeles County | — | — |
| Adam Tenenbaum | Adam Tenenbaum | — | (323) 686 0331 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| Adam's Construction | Robert Joe Szilagyi | — | (818) 355 2100 | GC, remodel, ADU | Culver City · Los Angeles County | — | — |
| Adam's Electric | Hernandez Adan Jimenez | — | (818) 582 1234 | Electricians | Pacoima · Los Angeles County | — | — |
| Adam's Painting | Adam's Painting | — | (661) 878 6652 | Windows, patio, painters | Palmdale · Los Angeles County | — | — |
| Adamant Tile And Stone | Adamant Tile And Stone | — | (818) 802 0169 | GC, remodel, ADU | Reseda · Los Angeles County | — | — |
| Adamark Air | Vadim Hashimov | — | (323) 854 9027 | HVAC | Sherman Oaks · Los Angeles County | — | — |
| Adame Design & Construction | Adame David | — | (310) 464 7214 | GC, remodel, ADU | Pomona · Los Angeles County | — | — |
| Adame Finish Carpentry | Adame Finish Carpentry | — | (323) 810 1866 | Other | Pasadena · Los Angeles County | — | — |
| Adamm's Stained Glass | Adamm's Stained Glass | — | (310) 451 9390 | Windows, patio, painters | Hawthorne · Los Angeles County | — | — |