| A Specialist | A Specialist | — | (818) 355 0414 | Electricians | North Hollywood · Los Angeles County | — | — |
| A Star Construction | Yaralyan Sarkis | — | (323) 497 1234 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| A Step Above Pest Control | A Step Above Pest Control | — | (323) 716-1725 | Pest, tile roofs | Los Angeles · Los Angeles County | — | — |
| A Stupak Builders INC | Nathan Andrew Stupak | — | (626) 404 8210 | GC, remodel, ADU | West Covina · Los Angeles County | — | — |
| A Subcool Air Conditioning INC | Ararat Kh Esagholian | — | (818) 609 8776 | HVAC | Van Nuys · Los Angeles County | — | — |
| A Sunrise Construction | Hector Gonzalez | — | (818) 343 0654 | Other roofers | Reseda · Los Angeles County | — | — |
| A T A Heating & Air Conditioning INC | Varon Lior | — | (818) 331 0606 | HVAC | Woodland Hills · Los Angeles County | — | — |
| A T A Plumbing & Construction INC | Albert Ataian | — | (323) 551 5945 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| A T And T Z Electrical Contractor INC | Albert Khachikian | — | (310) 864 5007 | Electricians | Mission Hills · Los Angeles County | — | — |
| A T C Wood Works INC | Alon Federman | — | (818) 535 7722 | GC, remodel, ADU | Canoga Park · Los Angeles County | — | — |
| A T Construction & Consultant | Tashakori Ali | — | (310) 994 2820 | GC, remodel, ADU | Rolling Hills · Los Angeles County | — | — |
| A T Custom Cabinets INC | Tostado Alberto | — | (818) 347 0740 | Other | Canoga Park · Los Angeles County | — | — |
| A T D Lock & Security INC | Orly Zevulun | — | (818) 883 7199 | Alarm and generators | Tarzana · Los Angeles County | — | — |
| A T Enterprise Construction | Tabani Alireza | — | (818) 287 9024 | GC, remodel, ADU | Canoga Park · Los Angeles County | — | — |
| A T H Construction | David Kenneth Wysong | — | (818) 268 8188 | GC, remodel, ADU | Northridge · Los Angeles County | — | — |
| A T H Plumbing & Remodeling INC | Hayrapetian Andre | — | (818) 482 5805 | Other | Glendale · Los Angeles County | — | — |
| A T M And Safes Services INC | Francisco J Atilano De La Torre | — | (360) 200 9915 | GC, remodel, ADU | West Covina · Los Angeles County | — | — |
| A T Plumbing Company | Tevanian Alfred | — | (818) 288 8251 | Electricians | Burbank · Los Angeles County | — | — |
| A T S Design And Construction | Shafiq Rahman | — | (310) 259 5697 | GC, remodel, ADU | Torrance · Los Angeles County | — | — |
| A T T Construction | Audencio Tilapa-Tepetlanco | — | (818) 212 7389 | GC, remodel, ADU | North Hollywood · Los Angeles County | — | — |
| A T Vardi Incorporated | Gidon Reznik Vardi | — | (562) 606 2010 | Electricians | Long Beach · Los Angeles County | — | — |
| A Team Builders Group INC | Michael Lawrence Adams | — | (818) 625 2598 | GC, remodel, ADU | Studio City · Los Angeles County | — | — |
| A Team Plumbing Services INC | Robert Jaime Ferman | — | (818) 224 9771 | Other | Sun Valley · Los Angeles County | — | — |
| A Team Renovation | Roi Rabinek | — | (310) 717 2223 | GC, remodel, ADU | North Hollywood · Los Angeles County | — | — |
| A Tech Painting INC | Myung Chul Shin | — | (213) 272 1256 | Windows, patio, painters | Los Angeles · Los Angeles County | — | — |
| A Tech Plumbing | A Tech Plumbing | — | (310) 484 4999 | Other | Whittier · Los Angeles County | — | — |
| A Time To Build INC | Osovsky Doron | — | (323) 326 7658 | GC, remodel, ADU | Valencia · Los Angeles County | — | — |
| A To B Appliance Installations | Julieta Alejandra Castaneda | — | (661) 453 0000 | Other | Valencia · Los Angeles County | — | — |
| A To Z Cabinets INC | Henri Youssef Abi Naked | — | (818) 772 1786 | Other | Northridge · Los Angeles County | — | — |
| A To Z Carpentry | A To Z Carpentry | — | (310) 291 0180 | Other | Carson · Los Angeles County | — | — |
| A To Z Carpet | A To Z Carpet | — | (323) 394 2274 | Other | Cudahy · Los Angeles County | — | — |
| A To Z Construction | Stephan Missak Bagboudarian | — | (818) 266 7601 | GC, remodel, ADU | Granada Hills · Los Angeles County | — | — |
| A To Z Construction | Christopher Thomas Ferguson | — | (818) 618 3201 | GC, remodel, ADU | Sherman Oaks · Los Angeles County | — | — |
| A To Z Construction & Beyond INC | Gabi Tannous Zaarour | — | (424) 263 4645 | GC, remodel, ADU | Harbor City · Los Angeles County | — | — |
| A To Z Construction INC | Tzahi Zilberberg | — | (800) 209 0031 | GC, remodel, ADU | Woodland Hills · Los Angeles County | — | — |
| A To Z Development | A To Z Development | — | (213) 364 2939 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| A To Z Electrical And Construction Co | Shlomo Ury Levy | — | (310) 428 7624 | Electricians | Los Angeles · Los Angeles County | — | — |
| A To Z Fascia And Building | Daniel Anthony Vasquez | — | (424) 744 6323 | GC, remodel, ADU | Venice · Los Angeles County | — | — |
| A To Z Glass & Mirror INC | Margaret Marie Keen | — | (323) 723 3449 | Windows, patio, painters | Los Angeles · Los Angeles County | — | — |
| A To Z Networking | A To Z Networking | — | (424) 442 9550 | Other | Woodland Hills · Los Angeles County | — | — |