| A Harari Construction | Harari Ayelet | — | (877) 730 4221 | GC, remodel, ADU | Valley Village · Los Angeles County | — | — |
| A Haven Builders INC | Robert James Quinn | — | (760) 578 5855 | GC, remodel, ADU | Cathedral City · Riverside County | — | — |
| A Helping Hand Handyman Service | Donald Ray Timmins | — | (916) 745 2593 | GC, remodel, ADU | Roseville · Placer County | — | — |
| A Helping Hand Handyman Services | Sanchez Carlos | — | (530) 368 6791 | GC, remodel, ADU | Meadow Vista · Placer County | — | — |
| A Hodgson Construction | Andrew James Hodgson | — | (714) 574 6570 | GC, remodel, ADU | Huntington Beach · Orange County | — | — |
| A Home Center | A Home Center | — | (209) 288 9584 | GC, remodel, ADU | Vallecito · Calaveras County | — | — |
| A Homes LLC | Jose Angel Jr Suarez | — | (323) 678 1684 | GC, remodel, ADU | Garden Grove · Orange County | — | — |
| A Honest Plumber LLC | Bryan Robert Arquieta | — | (909) 659 8515 | Other | San Diego · San Diego County | — | — |
| A Honey Do List Handyman | A Honey Do List Handyman | — | (650) 678 9472 | GC, remodel, ADU | Belmont · San Mateo County | — | — |
| A Hughes Construction Company | Jeffrey Arthur Hughes | — | (408) 835 0040 | Other | Santa Clara · Santa Clara County | — | — |
| A Hurtado Paving | A Hurtado Paving | — | (951) 295 8517 | Other | Moreno Valley · Riverside County | — | — |
| A I A Construction INC | Carl Gregory Halverstadt | — | (949) 903 2170 | GC, remodel, ADU | San Juan Capistrano · Orange County | — | — |
| A I A Flooring | A I A Flooring | — | (323) 314 6745 | Other | Los Angeles · Los Angeles County | — | — |
| A I C Construction | Castillo Alonso | — | (707) 542 1052 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| A I C Electric | Ryan Loyd Borrell | — | (209) 501 0587 | Electricians | Modesto · Stanislaus County | — | — |
| A I C Painting | A I C Painting | — | (831) 750 7791 | Windows, patio, painters | Felton · Santa Cruz County | — | — |
| A I Construction | Tashombe Vondez White | — | (951) 992 7316 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| A I Construction Solutions INC | Alex Indzheyan | — | (747) 474 1215 | GC, remodel, ADU | Burbank · Los Angeles County | — | — |
| A I Development | A I Development | — | (323) 449 2539 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| A I E General Construction | Gutierrez Lugo Margarito | — | (805) 310 6465 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| A I E M Electric | Tadevosian Arnold | — | (818) 504 8171 | Electricians | Sun Valley · Los Angeles County | — | — |
| A I Electric | Iavorovschi Alexandru | — | (714) 318 1256 | Electricians | Sacramento · Sacramento County | — | — |
| A I Flooring | A I Flooring | — | (916) 346 1009 | Other | Sacramento · Sacramento County | — | — |
| A I G | A I G | — | (707) 729 1558 | Windows, patio, painters | Santa Rosa · Sonoma County | — | — |
| A I G Painting | A I G Painting | — | (530) 979 0550 | GC, remodel, ADU | Arbuckle · Colusa County | — | — |
| A I H Flooring | A I H Flooring | — | (909) 376 4506 | Other | Upland · San Bernardino County | — | — |
| A I M Consolutions INC | Li Hailin | — | (650) 918 8715 | GC, remodel, ADU | Burlingame · San Mateo County | — | — |
| A I M Electric | Bernardino Jr Arreola | — | (760) 578 1039 | Electricians | Indio · Riverside County | — | — |
| A I M Electric | Ghazaei Mohammad | — | (310) 294 9100 | Electricians | Orange · Orange County | — | — |
| A I M Fire And Safety | John Jerome Dompke | — | (800) 295 4705 | Electricians | Huntington Beach · Orange County | — | — |
| A I N Construction And Remodeling | Ramon Francisco Camarena | — | (760) 899 6164 | GC, remodel, ADU | Thermal · Riverside County | — | — |
| A I P Construction | Pulido Alejandro | — | (310) 629 1210 | GC, remodel, ADU | Lynwood · Los Angeles County | — | — |
| A I P Plumbing | A I P Plumbing | — | (559) 351 1618 | GC, remodel, ADU | Selma · Fresno County | — | — |
| A I Painting | A I Painting | — | (951) 310 8000 | Windows, patio, painters | Hesperia · San Bernardino County | — | — |
| A I Plumbing | A I Plumbing | — | (323) 855 2764 | Other | Panorama City · Los Angeles County | — | — |
| A I R Tech INC | Michael Joseph Azzopardi | — | (831) 424 1282 | HVAC | Spreckels · Monterey County | — | — |
| A I S INC | Michael Patrick Lavelle | — | (925) 455 1800 | Other | Tracy · San Joaquin County | — | — |
| A I S Tile And Stone INC | Serhii Petrovich Lozovskyi | — | (916) 270 7627 | Other | Antelope · Sacramento County | — | — |
| A I W Engineering | Eduardo Arturo Avalos | — | (888) 341 5714 | Other | Buena Park · Orange County | — | — |
| A Infiniti Construction INC | Saeed Saidfar | — | (310) 721 5488 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |