| Acc Contracting INC | Patricio Hernan Picolomini | — | (818) 683 4618 | GC, remodel, ADU | Granada Hills · Los Angeles County | — | — |
| Acc Contractors INC | Afaf Setrak Ajamian | — | (626) 969 9797 | HVAC | Azusa · Los Angeles County | — | — |
| Acc Security & Surveillance Camera Systems | Acc Security & Surveillance Camera Systems | service@securitycameralosangeles.com | (310) 966-9919 | Alarm and generators | Los Angeles · Los Angeles County | — | — |
| Accel Engineering Construction & Consulting INC | Sarbaz Faranak | — | (310) 993 9733 | GC, remodel, ADU | Rolling Hills Estates · Los Angeles County | — | — |
| Accelerate Construction INC | Alon Damari | — | (818) 348 4840 | GC, remodel, ADU | Woodland Hills · Los Angeles County | — | — |
| Accelerated Av | Accelerated Av | — | (661) 733 4853 | Other | Burbank · Los Angeles County | — | — |
| Accelerated Construction Services | Randall James Fall | — | (661) 361 2677 | GC, remodel, ADU | Quartz Hill · Los Angeles County | — | — |
| Accent Door & Window INC | Kevin Francis Fairley | — | (818) 383 8371 | GC, remodel, ADU | West Hills · Los Angeles County | — | — |
| Accent Floors | Accent Floors | — | (661) 209 2525 | Other | Lancaster · Los Angeles County | — | — |
| Accent Metalworks INC | Juan Brito Valero | — | (714) 697 7041 | Other | Signal Hill · Los Angeles County | — | — |
| Accent Plumbing INC | Carlos Efrain Roman | — | (323) 257 8221 | Other | South Gate · Los Angeles County | — | — |
| Access Cabinets INC | Rojas Gregorio | — | (661) 360 8404 | Other | Canyon Country · Los Angeles County | — | — |
| Access Computer Floors INC | Christopher Flood | — | (323) 265 1850 | Other | Los Angeles · Los Angeles County | — | — |
| Access Construction INC | Marvin Mizael Herrera | — | (310) 855 4231 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| Access Five Communications INC | Chi-Cherng Wang | — | (310) 320 2255 | Other | Torrance · Los Angeles County | — | — |
| Access Glass Fabricators INC | Larry Kyi Shar | — | (626) 444 5877 | Windows, patio, painters | South El Monte · Los Angeles County | — | — |
| Access Heating And Air Conditioning INC | Larry Anthony Rodriguez | — | (626) 405 1074 | HVAC | Pasadena · Los Angeles County | — | — |
| Access Lock And Maintenance | Access Lock And Maintenance | — | (714) 709 5000 | Other | Norwalk · Los Angeles County | — | — |
| Access Pacific INC | Tomas Torres | — | (626) 792 0616 | GC, remodel, ADU | Pasadena · Los Angeles County | — | — |
| Access Plumbing | Access Plumbing | — | (800) 921 4715 | Other | Redondo Beach · Los Angeles County | — | — |
| Access Plumbing & Rooter Services | Larry Allen Sheflo | — | (818) 943 7766 | Other | Chatsworth · Los Angeles County | — | — |
| Access Plumbing Services INC | Flores Franky Morales | — | (310) 686 3551 | Other | Los Angeles · Los Angeles County | — | — |
| Access Stairlifts And Mobility Solutions LLC | Luis Guillermo Mendoza | — | (909) 206 0151 | Other | Pomona · Los Angeles County | — | — |
| Accetta Construction Equipment Services | Natalie Jane Accetta | — | (310) 721 5475 | Other | San Pedro · Los Angeles County | — | — |
| Acco Engineered Systems | Curtis Johan Cady | — | (818) 244 6571 | HVAC | Pasadena · Los Angeles County | — | — |
| Acco-wilson INC | Curtis Johan Cady | — | (831) 244 6571 | HVAC | Pasadena · Los Angeles County | — | — |
| Accolade Developement Co LLC | Sears Tristan | — | (818) 913 0409 | GC, remodel, ADU | Pasadena · Los Angeles County | — | — |
| Accolade Electric INC | Tristan Sears | — | (626) 614 0000 | Electricians | Pasadena · Los Angeles County | — | — |
| Accom Construction | Danny Yongyuth Sabpapunya | — | (562) 338 4912 | GC, remodel, ADU | Alhambra · Los Angeles County | — | — |
| Accord Construction INC | Ambarsoomzadeh Serzhik | — | (818) 500 4833 | GC, remodel, ADU | Glendale · Los Angeles County | — | — |
| Accord Electrical Corporation | Steven Michael Vincze | — | (818) 713 1675 | Electricians | West Hills · Los Angeles County | — | — |
| Accord T M Incorporated | Kristian Stoytchev Stoytchev | — | (818) 517 6612 | Windows, patio, painters | Stevenson Ranch · Los Angeles County | — | — |
| Accs Electric INC | Armen Tommy Surmabukian | — | (818) 383 2525 | Electricians | Porter Ranch · Los Angeles County | — | — |
| Accs3 Electric INC | Armen Tommy Surmabukian | — | (760) 475 4833 | Electricians | Van Nuys · Los Angeles County | — | — |
| Accu Fire Protection | Accu Fire Protection | — | (818) 282 3692 | Other | Canyon Country · Los Angeles County | — | — |
| Accu Solution Construction INC | Choon Ho Chang | — | (714) 350 4342 | GC, remodel, ADU | Norwalk · Los Angeles County | — | — |
| Accu-cut INC | Bernard Andrew O'leary | — | (310) 327 3454 | Other | Gardena · Los Angeles County | — | — |
| Accu-rite Industrial Door Repair | Accu-rite Industrial Door Repair | — | (562) 212 8433 | GC, remodel, ADU | Long Beach · Los Angeles County | — | — |
| Acculectric INC | Miguel Angel Banales | — | (310) 971 6371 | Electricians | Carson · Los Angeles County | — | — |
| Accurate Air Systems | Avaness Hovick Noravian | — | (626) 818 4744 | HVAC | Glendale · Los Angeles County | — | — |