| A & H Investments INC DBA Fantastic Vinyl Fencing | Arthur Karapetyan | — | (323) 428 4034 | Other | Baldwin Park · Los Angeles County | — | — |
| A & H Networks INC | Edward Benson Pjal Spaulding | — | (619) 602 2234 | Other | Lakeside · San Diego County | — | — |
| A & H Refrigeration INC | Holly Le | — | (714) 800 9888 | HVAC | Garden Grove · Orange County | — | — |
| A & H Sullivan Construction LLC | Henry Knox Sullivan | ahsullivanconstruction@gmail.com | (619) 837-5542 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| A & I Air Conditioning Services | Abnoos Armineh Keshish | — | (818) 468 7887 | HVAC | Sunland · Los Angeles County | — | — |
| A & I Construction INC | Iremadze Joseph | — | (408) 768 4938 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A & I Electric | Anthony Robert Hood | — | (559) 681 2629 | Electricians | Fresno · Fresno County | — | — |
| A & I Enterprises INC | Placida Cruz Miller | — | (818) 635 7533 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| A & I Roofing INC | Julia Ann Christian | cschario@gmail.com | (707) 826 2653 | Other roofers | Arcata · Humboldt County | — | — |
| A & J All Woodworks | A & J All Woodworks | — | (818) 335 3834 | Other | Northridge · Los Angeles County | — | — |
| A & J Blinds | A & J Blinds | impallari@gmail.com | (707) 974 9411 | Windows, patio, painters | Vacaville · Solano County | — | — |
| A & J California Builders INC | Aaron Emil Mattson | — | (408) 690 7421 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A & J Concrete Cutting & Breaking | Jose Craig Bugarin | — | (760) 535 3161 | Other | Temecula · Riverside County | — | — |
| A & J Construction | Jose Humberto Lopez Lemus | — | (714) 925 8546 | Other | Santa Ana · Orange County | — | — |
| A & J Construction | Anthony Lee Pizarro | — | (530) 613 0527 | GC, remodel, ADU | Applegate · Placer County | — | — |
| A & J Construction | Jose Jesus Valeriano | — | (530) 848 3356 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| A & J Construction INC | Juan Eduardo Farias | — | (209) 801 6574 | GC, remodel, ADU | Ceres · Stanislaus County | — | — |
| A & J Contracting | Robert Refugio Carrasco | — | (909) 618 5804 | GC, remodel, ADU | Glendora · Los Angeles County | — | — |
| A & J Custom Quality Painting | Alex Dagoberto Moran | — | (310) 951 8788 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| A & J Drywall INC | Xavier Valdez | — | (916) 853 2159 | Other | Rancho Cordova · Sacramento County | — | — |
| A & J Duct Cleaning INC | Annette Louise Mathis | — | (323) 787 0788 | Other | Los Angeles · Los Angeles County | — | — |
| A & J Electric | Johnson Nguyen Tran | — | (925) 219 6886 | Electricians | Pittsburg · Contra Costa County | — | — |
| A & J Electrical LLC | Alexis Gallegos Chavez | — | (209) 643 3595 | Electricians | Merced · Merced County | — | — |
| A & J Environmental Services INC | Christopher Allen Edwards | — | (909) 597 9702 | Other | Riverside · Riverside County | — | — |
| A & J Faith Builders INC | Alan James Acosta | — | (714) 722 3361 | GC, remodel, ADU | Sacramento · Sacramento County | — | — |
| A & J Fencing | Justin Lyle Lena | — | (925) 939 2105 | GC, remodel, ADU | Concord · Contra Costa County | — | — |
| A & J Flooring | Jafet Conrado Cruz Garcia | info@ajflooring.com | (209) 985 1205 | Other | Modesto · Stanislaus County | — | — |
| A & J Floors INC | Jose Alfredo Escamilla-Sanchez | — | (209) 679 4990 | Other | Santa Clara · Santa Clara County | — | — |
| A & J General Roofing INC | Abraham Renteria Rincon | — | (562) 436 0936 | Other roofers | Long Beach · Los Angeles County | — | — |
| A & J Heating And Air | Joe Manuel Cortez | — | (951) 350 2498 | HVAC | Riverside · Riverside County | — | — |
| A & J Home Remodeling LLC | Aaron Mattias Dieckmann | — | (425) 409 8163 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| A & J Landscaping | A & J Landscaping | — | (661) 319 5247 | Windows, patio, painters | Bakersfield · Kern County | — | — |
| A & J Legacy Awning | Andres Francisco Pretzantzin Soch | — | (747) 323 5331 | Other | Sylmar · Los Angeles County | — | — |
| A & J Painting INC | Alan Kennith Joyce | — | (510) 292 3668 | Windows, patio, painters | Berkeley · Alameda County | — | — |
| A & J Plumbing | A & J Plumbing | — | (760) 413 6391 | Other | Cathedral City · Riverside County | — | — |
| A & J Plumbing And Rooter | Armando Jr Fernandez | — | (310) 629 1830 | GC, remodel, ADU | Wilmington · Los Angeles County | — | — |
| A & J Plumbing Company | Art Cortez | — | (877) 267 7567 | Other | Colton · San Bernardino County | — | — |
| A & J Plumbing Construction Services | Juan Gabriel Mosqueda | — | (310) 613 1347 | Other | Compton · Los Angeles County | — | — |
| A & J Quality General Construction Services | Jacqueline Lourdes Romero | — | (510) 871 5842 | GC, remodel, ADU | American Canyon · Napa County | — | — |
| A & J Roofing Service Corp | Estevan Javier | roofservice101@gmail.com | (323) 266 3156 | Other roofers | Los Angeles · Los Angeles County | — | — |