| Abx Drywall | Abx Drywall | — | (747) 263 5684 | Other | West Hills · Los Angeles County | — | — |
| AC & Dc Electric & Construction INC | Arthur Cardenas | — | (325) 696 5400 | Electricians | Montebello · Los Angeles County | — | — |
| AC Air Pro | AC Air Pro | — | (818) 408 3094 | HVAC | Palmdale · Los Angeles County | — | — |
| AC Building Group INC | Christopher Thompson Collins | — | (661) 433 3834 | GC, remodel, ADU | Newhall · Los Angeles County | — | — |
| AC Construction | Alfredo Contreras Salvatierra | — | (909) 762 4378 | GC, remodel, ADU | Pomona · Los Angeles County | — | — |
| AC Construction 4U INC | Rodriguez Antonio | — | (714) 889 8599 | GC, remodel, ADU | Pico Rivera · Los Angeles County | — | — |
| AC Construction Company | Angel Estuado Carranza | — | (323) 992 7531 | GC, remodel, ADU | South Gate · Los Angeles County | — | — |
| AC Electric Contractors | Oscar Armando Calderon Valencia | info@acelectriccontractors.com | (818) 272 3926 | Electricians | San Fernando · Los Angeles County | — | — |
| AC Flooring Corp | Brandon Stive AC Sierra | — | (323) 509 2257 | Other | Gardena · Los Angeles County | — | — |
| AC Geeks HVAC INC | Suren Hunanyan | acgeekshvac@gmail.com | (424) 444 9696 | HVAC | Calabasas · Los Angeles County | — | — |
| AC Genius INC | Momeni Amir | — | (818) 442 7290 | HVAC | Tarzana · Los Angeles County | — | — |
| AC Guarantee Construction INC | Amos Cohen | — | (818) 345 0135 | GC, remodel, ADU | Encino · Los Angeles County | — | — |
| AC Guy INC | Denis Alexander Borovskikh | — | (323) 898 2304 | HVAC | Pacoima · Los Angeles County | — | — |
| AC Hardwood Floors | AC Hardwood Floors | — | (818) 648 3539 | Other | Reseda · Los Angeles County | — | — |
| AC Heat Diamond Bar | AC Heat Diamond Bar | — | (840) 239 6590 | HVAC | Diamond Bar · Los Angeles County | — | — |
| AC Heating & Air Conditioning Services INC | Cordero Aurelio | — | (818) 825 5767 | HVAC | North Hills · Los Angeles County | — | — |
| AC Hero | Julan Hao | — | (626) 715 0532 | HVAC | Rosemead · Los Angeles County | — | — |
| AC Home Construction | Sierra Teodoro Carbajal | — | (818) 378 2953 | GC, remodel, ADU | Northridge · Los Angeles County | — | — |
| AC Home Services & Maintenance INC DBA 24 Hour Garage Door & | Adam Cohen | — | (805) 280 6977 | Other | Valley Village · Los Angeles County | — | — |
| AC Horticultural Management INC | Carmen Castillo | — | (818) 895 5559 | Windows, patio, painters | Chatsworth · Los Angeles County | — | — |
| AC Masters INC | Yohai Pinto | — | (323) 202 3067 | HVAC | Los Angeles · Los Angeles County | — | — |
| AC On Gardner Plumbing INC | Alexander Rotmansky | — | (323) 864 0593 | Other | Los Angeles · Los Angeles County | — | — |
| AC Plumbing Heating & Air Conditioning INC DBA AC Plumbing INC | Armando M Cruz | — | (310) 530 6290 | HVAC | Harbor City · Los Angeles County | — | — |
| AC Pool Services | Mark Patrick Doody | — | (818) 208 0372 | Pool | Van Nuys · Los Angeles County | — | — |
| AC Pro Master | AC Pro Master | — | (818) 322 5931 | HVAC | Calabasas · Los Angeles County | — | — |
| AC Pros INC | Noam Ziv | azacpros@gmail.com | (818) 342 7767 | HVAC | Reseda · Los Angeles County | — | — |
| AC Reabak Electric | Hanan Reuven Rybak | — | (310) 828 9371 | Electricians | Santa Monica · Los Angeles County | — | — |
| AC Smart Homes LLC | Vernon Darnell Owens | contact@acsmarthomes.com | (310) 421 2228 | Electricians | Los Angeles · Los Angeles County | — | — |
| AC Tech INC | Chun Yat Chan | grl@actech.de | (626) 689 8068 | HVAC | West Covina · Los Angeles County | — | — |
| AC Unique Glass INC | Vincent Yu Wang | — | (626) 308 1850 | Windows, patio, painters | San Gabriel · Los Angeles County | — | — |
| AC Wine Cellars Services | Amilcar Noe Cifuentes | — | (818) 814 7023 | HVAC | Arleta · Los Angeles County | — | — |
| Ac-dc Backflow INC | Alex Cuevas | — | (818) 813 4103 | Other | Sun Valley · Los Angeles County | — | — |
| Ac-dc Electric | Oscar Luis Higa | — | (562) 926 5737 | Electricians | Cerritos · Los Angeles County | — | — |
| Ac-dc Electric Solutions INC | Gustavo Enrique Morales Diaz | — | (310) 872 8538 | Electricians | Torrance · Los Angeles County | — | — |
| Ac/dc Lighting & Electrical INC | Khajekiyan Martin Minas | — | (818) 571 1058 | Electricians | Tujunga · Los Angeles County | — | — |
| Aca General Construction INC | Alberto Ivan Cruz Arteaga | — | (310) 801 3832 | GC, remodel, ADU | Agua Dulce · Los Angeles County | — | — |
| Acabe General Contractor | Acabe General Contractor | — | (323) 228 7354 | Electricians | West Covina · Los Angeles County | — | — |
| Academy Rooter & Plumbing Service | Ashkenazi Moshe | — | (310) 990 6120 | Other | Los Angeles · Los Angeles County | — | — |
| Acadian Development INC | Derek James Broussard | — | (626) 533 0001 | GC, remodel, ADU | Sierra Madre · Los Angeles County | — | — |
| Acc | Casillas Arturo | — | (310) 418 6208 | GC, remodel, ADU | Inglewood · Los Angeles County | — | — |