| A Xin Electrical INC | Haibin Yan | — | (626) 662 1313 | Electricians | Monterey Park · Los Angeles County | — | — |
| A Y & Sons Landscape & Design | Thomas Anthony Dominguez | — | (408) 401 4173 | Windows, patio, painters | Sacramento · Sacramento County | — | — |
| A Y Construction | Yogev Adam | — | (310) 650 0909 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| A Y Development LLC | David Jung | — | (310) 402 6152 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| A Y Engineering | A Y Engineering | — | (510) 541 0868 | Other | Oakland · Alameda County | — | — |
| A Y H Remodeling And Construction INC | Nuno Rafael Velasco | — | (408) 256 9276 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| A Y Hardwood Flooring | A Y Hardwood Flooring | — | (888) 313 9489 | Other | No Hollywood · Los Angeles County | — | — |
| A Y S Construction | Jose Alfredo Rodriguez-Ramirez | — | (760) 559 2927 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |
| A Z Builders Group INC | Louis William Jr Wright | — | (510) 393 1474 | GC, remodel, ADU | Vacaville · Solano County | — | — |
| A Z Communications | A Z Communications | — | (559) 298 3022 | Other | Fresno · Fresno County | — | — |
| A Z Concrete Design | A Z Concrete Design | — | (949) 872 0808 | Other | Silverado · Orange County | — | — |
| A Z Construction & Design INC | Eytan Libesman | — | (800) 504 3839 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| A Z Custom Construction INC | Vladimir Petrovich Zhuchenko | — | (916) 239 9235 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| A Z E Electric | Yamany Aly Encinas | — | (951) 707 8487 | Electricians | Riverside · Riverside County | — | — |
| A Z Garage Doors | A Z Garage Doors | — | (951) 972 2036 | Other | Riverside · Riverside County | — | — |
| A Zavala Construction INC | Vega Arturo Zavala | — | (818) 231 5943 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| A#1 Developers INC | Joseph John Rezek | — | (510) 378 8884 | GC, remodel, ADU | Walnut Creek · Contra Costa County | — | — |
| A&a Builder INC | Calvin Lam | — | (949) 803 8000 | GC, remodel, ADU | Huntington Beach · Orange County | — | — |
| A&a Construction | Arnold Davon Agee | — | (323) 713 4336 | GC, remodel, ADU | Marina Del Rey · Los Angeles County | — | — |
| A&a Electric LLC | Luis Enrique Avalos | — | (209) 628 6326 | Electricians | Winton · Merced County | — | — |
| A&a Fine Finish Painting INC | Andrew Anthony Garcia | — | (760) 705 7527 | Windows, patio, painters | Oceanside · San Diego County | — | — |
| A&a Insulation General Partnership | Alejandro Olazaba-Gomez | — | (760) 628 9302 | Other | Victorville · San Bernardino County | — | — |
| A&a Masterly Painting | Jonathan Edgardo Anto Aldana Hernandez | — | (213) 440 2324 | Windows, patio, painters | Reseda · Los Angeles County | — | — |
| A&a Mechanical Construction | Oscar Javier Baez | — | (760) 799 9683 | GC, remodel, ADU | Desert Hot Springs · Riverside County | — | — |
| A&a Plastering INC | Torres Art Jacobo | — | (714) 788 9105 | Other | Hesperia · San Bernardino County | — | — |
| A&a Plumbing Solutions LLC | Angel Michael Robles | — | (949) 449 3287 | Other | Santa Ana · Orange County | — | — |
| A&a Pools INC | Alcantar Aceves Ramon | — | (669) 262 7849 | Pool | San Jose · Santa Clara County | — | — |
| A&a Pro Construction Incorporated | Martinez Alfredo Chavarin | — | (714) 580 0825 | GC, remodel, ADU | Corona · Riverside County | — | — |
| A&a Projects LLC | Brayan Alejandro Arambula Onate | — | (559) 483 1715 | GC, remodel, ADU | West Hollywood · Los Angeles County | — | — |
| A&a Proline Appliance Installs | Jorge Ali Camarillo | — | (619) 504 8442 | Other | San Diego · San Diego County | — | — |
| A&a Property Management LLC | Adam Jacob Melville | — | (949) 379 9273 | GC, remodel, ADU | Laguna Hills · Orange County | — | — |
| A&a Remodeling LLC | Francisco Javier Rodriguez Chavez | — | (510) 395 5077 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| A&a Restoration & Remodel | Shay Kalmanovich | — | (951) 772 2140 | GC, remodel, ADU | Perris · Riverside County | — | — |
| A&a Roofing | Gomez Federico Zarate | — | (831) 869 9189 | Other roofers | Seaside · Monterey County | — | — |
| A&a Syn-fresh INC | Randy Riojas | — | (559) 930 3755 | Other | Fresno · Fresno County | — | — |
| A&as Highend Roofing INC | Adalberto Jr Rodriguez | — | (559) 837 3549 | Other roofers | Dinuba · Tulare County | — | — |
| A&b Classic Restoration INC | Bojan Matovic | — | (310) 990 2151 | GC, remodel, ADU | Manhattan Beach · Los Angeles County | — | — |
| A&b Experts | A&b Experts | — | (209) 587 9408 | GC, remodel, ADU | Los Banos · Merced County | — | — |
| A&b General Contracting INC | Garcia Abraham Espinoza | — | (760) 532 6769 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| A&b Marble Countertops INC | Jose Alfredo Fregozo | — | (951) 259 3245 | Other | Perris · Riverside County | — | — |