| A Q Construction | Cvitanic Andrej | — | (408) 439 1064 | GC, remodel, ADU | Gilroy · Santa Clara County | — | — |
| A Q Construction INC | Alejandro Quevedo | — | (951) 545 4607 | GC, remodel, ADU | Duarte · Los Angeles County | — | — |
| A Q H I INC | Alin Paris | — | (909) 989 3444 | Other | Corona · Riverside County | — | — |
| A Q Management & Control | A Q Management & Control | — | (213) 305 0840 | GC, remodel, ADU | Encino · Los Angeles County | — | — |
| A Quality Connection | A Quality Connection | — | (858) 485 0702 | Other | Escondido · San Diego County | — | — |
| A Quality Construction | Timothy James Leitheiser | — | (818) 472 6972 | GC, remodel, ADU | Northridge · Los Angeles County | — | — |
| A Quality Garage Door Company | Deric Scott Davidson | — | (714) 523 7900 | Other | Buena Park · Orange County | — | — |
| A Quality Handyman Service INC | Keith Orlando Phillips | — | (310) 627 9153 | GC, remodel, ADU | Compton · Los Angeles County | — | — |
| A Quality Heating & Air Conditioning INC | Ahmad Said Ali Ammar | — | (714) 507 8949 | HVAC | Riverside · Riverside County | — | — |
| A Quality Plastering Co | Jeffrey Edward Cusworth | — | (805) 312 3055 | Other | Simi Valley · Ventura County | — | — |
| A Quality Plumbing & Electric INC | Brian Thomas Johnson | — | (925) 449 0891 | Electricians | Livermore · Alameda County | — | — |
| A Quality Roofing | Jose Alberto Moon | — | (310) 806 5338 | Other roofers | Compton · Los Angeles County | — | — |
| A R & R Plumbing | A R & R Plumbing | — | (310) 717 4269 | Other | Harbor City · Los Angeles County | — | — |
| A R 4 Construction INC | Antony Arias Rodriguez | — | (818) 802 3232 | GC, remodel, ADU | Panorama City · Los Angeles County | — | — |
| A R A Construction | Arakelian Armine | info@araconstruction.com | (415) 999 1245 | Electricians | Montrose · Los Angeles County | — | — |
| A R A Painting | A R A Painting | — | (951) 333 8208 | Windows, patio, painters | Hawaiian Gardens · Los Angeles County | — | — |
| A R A Painting INC | Anselmo Ramirez | — | (323) 240 3841 | Windows, patio, painters | Los Angeles · Los Angeles County | — | — |
| A R A Remodel And Construction | Craig Emil-Louis Bordon | — | (310) 864 3015 | GC, remodel, ADU | Hermosa Beach · Los Angeles County | — | — |
| A R Bardsley Construction | Aric Richard Bardsley | — | (619) 666 0362 | Other | Jamul · San Diego County | — | — |
| A R Bathroom And Floor Tile INC | Avalos Aaron Romero | — | (714) 661 4820 | Other | Santa Ana · Orange County | — | — |
| A R C & Associates INC | Alex Rivera | — | (818) 515 3310 | GC, remodel, ADU | Northridge · Los Angeles County | — | — |
| A R C Co | Lawrence Nicholas Laurie | — | (805) 610 4036 | GC, remodel, ADU | Morro Bay · San Luis Obispo County | — | — |
| A R C Concrete | A R C Concrete | — | (760) 423 9809 | Other | Cathedral City · Riverside County | — | — |
| A R C Construction & Maintenance | Kolossa Attila | — | (626) 975 3737 | GC, remodel, ADU | Pasadena · Los Angeles County | — | — |
| A R C Construction & Remodeling | Torres Segura Armando | — | (714) 222 1815 | GC, remodel, ADU | Anaheim · Orange County | — | — |
| A R C Construction Co | Amirnovin Mahmoud | — | (619) 920 3929 | GC, remodel, ADU | La Jolla · San Diego County | — | — |
| A R C Custom Builders | Aryan Rama Cashion | — | (760) 271 3919 | GC, remodel, ADU | Oceanside · San Diego County | — | — |
| A R C Electric | Jordan L Suiter | — | (510) 414 3068 | Electricians | Foster City · San Mateo County | — | — |
| A R C General Construction Corp | Alcala Aaron Umares | — | (714) 873 3591 | GC, remodel, ADU | La Habra · Orange County | — | — |
| A R C Home Improvement INC | Christopher Roy Campus | — | (661) 236 1851 | GC, remodel, ADU | Lancaster · Los Angeles County | — | — |
| A R C Mechanical Systems INC | Adrian Rico Contreras | — | (408) 595 6577 | HVAC | Gilroy · Santa Clara County | — | — |
| A R C Plumbing | A R C Plumbing | — | (310) 350 2459 | Other | Hawthorne · Los Angeles County | — | — |
| A R C Reglazing | A R C Reglazing | — | (323) 228 8947 | Other | Los Angeles · Los Angeles County | — | — |
| A R C Restoration & Waterproofing INC | Gary Charles Miller | — | (415) 453 7000 | Other roofers | San Rafael · Marin County | — | — |
| A R Coatings | A R Coatings | — | (760) 305 2909 | Windows, patio, painters | Alpine · San Diego County | — | — |
| A R Coatings INC | Ruben Quiroz | alext@arcoatingsinc.com | (760) 519 9399 | GC, remodel, ADU | San Marcos · San Diego County | — | — |
| A R Construction | Armando Renteria | — | (805) 760 0324 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| A R Construction | Milton Adolfo Rosales Choy | — | (415) 225 2267 | GC, remodel, ADU | San Mateo · San Mateo County | — | — |
| A R Construction | Bruce Everett Sheppard | — | (707) 333 7143 | GC, remodel, ADU | Vallejo · Solano County | — | — |
| A R Construction And Painting | Oscar Alberto Romero | — | (408) 794 9087 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |