| Adams Construction | Alan Roger Adams | — | (818) 881 0992 | Electricians | Encino · Los Angeles County | — | — |
| Adams Construction LLC | Elijah Nicholas Adams | — | (818) 307 0382 | GC, remodel, ADU | Woodland Hills · Los Angeles County | — | — |
| Adams Electric | Kim Allen Adams | — | (909) 861 0025 | Electricians | Diamond Bar · Los Angeles County | — | — |
| Adams Innovative Renovations | Adams Innovative Renovations | — | (310) 220 7285 | GC, remodel, ADU | Carson · Los Angeles County | — | — |
| Adams R Flooring | Perez Adan Rodriguez | — | (661) 435 9259 | Other | Palmdale · Los Angeles County | — | — |
| Adan Figueroa | Adan Figueroa | — | (323) 233 1568 | Electricians | Los Angeles · Los Angeles County | — | — |
| Adan Josue Monge Miranda | Adan Josue Monge Miranda | — | (323) 445 0214 | Windows, patio, painters | Los Angeles · Los Angeles County | — | — |
| Adan Torres Renteria | Adan Torres Renteria | — | (818) 400 1374 | GC, remodel, ADU | Van Nuys · Los Angeles County | — | — |
| Adan's Carpet Service | Guerra Adan | — | (818) 620 9546 | Other | Winnetka · Los Angeles County | — | — |
| Adani Remodeling INC | Ronald Carl Serling | — | (909) 845 1122 | GC, remodel, ADU | Tarzana · Los Angeles County | — | — |
| Adani Tile Solutions | Adani Tile Solutions | — | (818) 519 6960 | GC, remodel, ADU | Canoga Park · Los Angeles County | — | — |
| Adanstar Construction | Daniel Victor Alvira | — | (562) 852 5211 | GC, remodel, ADU | Downey · Los Angeles County | — | — |
| Adapt & Design Construction | Abel Acosta | — | (310) 290 2070 | GC, remodel, ADU | Downey · Los Angeles County | — | — |
| Adaptive Plumbing INC | Sergio Adan Avila | — | (714) 489 3205 | Other | Whittier · Los Angeles County | — | — |
| Adaptive Power Company INC | Scott Alan Curaba | — | (626) 324 0057 | Electricians | Glendora · Los Angeles County | — | — |
| Adar Builders INC | Amit Adar | office@adarbuilders.com | (818) 938 3260 | Other roofers | Winnetka · Los Angeles County | — | — |
| Adar Homes | Haiem Orit | — | (310) 999 2999 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| Adato Roofing | Robert Isaac Adato | — | (818) 203 8228 | Other roofers | Stevenson Ranch · Los Angeles County | — | — |
| Adaza Electric INC | Wright Charles Adaza | — | (310) 634 9901 | Electricians | Redondo Beach · Los Angeles County | — | — |
| Adb Enterprise | Angel Leduann Anderson | — | (323) 243 7795 | GC, remodel, ADU | Long Beach · Los Angeles County | — | — |
| Adbz Construction | Zamhir Osman Davila | — | (818) 418 9120 | Electricians | North Hollywood · Los Angeles County | — | — |
| Adc Construction Company | Yong Chao Kuang | — | (213) 880 9659 | GC, remodel, ADU | Temple City · Los Angeles County | — | — |
| Adc Corp | Daniel Lee Stradford | — | (323) 704 6674 | GC, remodel, ADU | Altadena · Los Angeles County | — | — |
| Adc Management INC | Deborah Berta Harris | — | (323) 577 3138 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| Adco Roofing And Waterproofing | Dmitri Jacob Triphon | — | (818) 505 9272 | Other roofers | North Hollywood · Los Angeles County | — | — |
| Adco Services INC | Joseph Michael Addante | — | (323) 725 2581 | Windows, patio, painters | Montebello · Los Angeles County | — | — |
| Add Plumbing INC | Clive Adler | — | (818) 760 9418 | Other | San Fernando · Los Angeles County | — | — |
| Addessi Brothers INC | Addessi Mario | — | (562) 348 9480 | GC, remodel, ADU | Downey · Los Angeles County | — | — |
| Addison Pools | Addison Pools | — | (818) 205 9255 | GC, remodel, ADU | Valley Village · Los Angeles County | — | — |
| Addison Pools INC | Drake Addison Woods | — | (818) 205 9255 | GC, remodel, ADU | Valley Village · Los Angeles County | — | — |
| Addison Waters INC DBA Addison Pool Waters | Drake Addison Woods | — | (818) 205 9255 | Pool | Valley Village · Los Angeles County | — | — |
| Addition Building & Design INC | Michael Edward Ross | — | (310) 617 2722 | GC, remodel, ADU | Sherman Oaks · Los Angeles County | — | — |
| Additive Construction | Babak Zareiyan | — | (213) 880 9105 | GC, remodel, ADU | Sherman Oaks · Los Angeles County | — | — |
| Address Builders INC | Sang Eun Ji | — | (310) 940 3323 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| Ade Agbalaya | Ade Agbalaya | — | (818) 209 5449 | GC, remodel, ADU | Burbank · Los Angeles County | — | — |
| Ade Deign & Build INC | Yervand Armen Grigorian | — | (818) 632 9887 | GC, remodel, ADU | Tujunga · Los Angeles County | — | — |
| Adel Electric | Ghafari Adel | — | (626) 701 0861 | Electricians | Monterey Park · Los Angeles County | — | — |
| Adel Ghaly | Adel Ghaly | — | (310) 482 8481 | Electricians | Reseda · Los Angeles County | — | — |
| Adelso Jovel | Adelso Jovel | — | (818) 731 2385 | Other | Van Nuys · Los Angeles County | — | — |
| Ademar Pineda | Ademar Pineda | — | (818) 269 1992 | Windows, patio, painters | Northridge · Los Angeles County | — | — |