| A Installation | A Installation | — | (818) 462 3235 | Other | Woodland Hills · Los Angeles County | — | — |
| A J & J Painting INC | Ramirez Jorge | — | (818) 763 8992 | GC, remodel, ADU | Studio City · Los Angeles County | — | — |
| A J & T Plumbing & Electric INC | Anthony Morgan Moser | — | (559) 341 0535 | Electricians | Clovis · Fresno County | — | — |
| A J 's Custom Painting | A J 's Custom Painting | — | (559) 686 8264 | Windows, patio, painters | Visalia · Tulare County | — | — |
| A J A Electric | Tony Joseph Arena | — | (209) 617 1065 | Electricians | Dos Palos · Merced County | — | — |
| A J A General Construction | Angelo John Arminio | — | (510) 604 8894 | GC, remodel, ADU | Oakley · Contra Costa County | — | — |
| A J And Company INC | Arturo Padilla Garcia | — | (323) 816 6600 | HVAC | Montebello · Los Angeles County | — | — |
| A J And E General Construction INC | Juan Jose Sanabria | — | (909) 205 5722 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| A J B Painting | A J B Painting | — | (805) 934 0252 | Windows, patio, painters | Santa Maria · Santa Barbara County | — | — |
| A J Builders | A J Builders | — | (510) 681 3794 | GC, remodel, ADU | Elk Grove · Sacramento County | — | — |
| A J Building & Development Company | Alan Oscar Johnson | — | (916) 446 3055 | GC, remodel, ADU | Sacramento · Sacramento County | — | — |
| A J Building Specialties | Thomas James Himes | — | (209) 922 3342 | GC, remodel, ADU | Escalon · San Joaquin County | — | — |
| A J Built | A J Built | — | (858) 361 5614 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| A J C Concrete INC | George Armando Scala | — | (626) 918 4620 | Other | West Covina · Los Angeles County | — | — |
| A J C Design And Construction INC | Juan Bernardo Ortiz Lemus | — | (510) 478 6644 | GC, remodel, ADU | San Pablo · Contra Costa County | — | — |
| A J Concrete | A J Concrete | — | (951) 413 4929 | Other | Moreno Valley · Riverside County | — | — |
| A J Construction | Pal Ajay | — | (510) 789 7006 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| A J Construction | Andrew Aaron Jennings | — | (805) 234 5626 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| A J Construction | Jeihani Ali | — | (650) 520 9030 | GC, remodel, ADU | Mission Viejo · Orange County | — | — |
| A J Construction | Juan Carlos Mendez Herrera | — | (909) 520 3588 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| A J Construction & Remodeling INC | Andrew Peter Malpass | — | (530) 231 5181 | GC, remodel, ADU | Woodland · Yolo County | — | — |
| A J Construction And R H Vac | Ajeet Singh Atwal | — | (209) 814 0255 | HVAC | Ceres · Stanislaus County | — | — |
| A J Construction Company | Donald Scott Trecartin | — | (805) 540 1344 | GC, remodel, ADU | Nipomo · San Luis Obispo County | — | — |
| A J Construction Specialties INC | Michael Salvatore Ajello | ajspecial@sbcglobal.net | (714) 241 9101 | GC, remodel, ADU | Anaheim · Orange County | — | — |
| A J Contracting | Hesham Mohamed Hassan | — | (714) 343 6836 | GC, remodel, ADU | Eastvale · Riverside County | — | — |
| A J Criss Industries INC | Anthony John Criss | — | (760) 489 5120 | Windows, patio, painters | Escondido · San Diego County | — | — |
| A J Custom Remodeler | A J Custom Remodeler | ajcustomremodeler@gmail.com | (714) 931 2263 | GC, remodel, ADU | Anaheim · Orange County | — | — |
| A J D Builders INC | Adam James Diaz | — | (707) 366 0046 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| A J D General Contractor INC | Alaniz Adolfo Otero | — | (626) 201 0202 | GC, remodel, ADU | Lake Elsinore · Riverside County | — | — |
| A J Delgado Construction | Adon Jr Delgado | — | (818) 620 0068 | GC, remodel, ADU | West Hills · Los Angeles County | — | — |
| A J Diani Construction Co INC | Donald Lee Ward | — | (805) 925 9533 | GC, remodel, ADU | Santa Maria · Santa Barbara County | — | — |
| A J Electric | John Paul Cannon | — | (415) 586 0191 | Electricians | San Francisco · San Francisco County | — | — |
| A J Electric | Nazar Mohamad Al-jamie | — | (714) 390 1477 | Electricians | Tustin · Orange County | — | — |
| A J Electric | Haberfeld Avi | — | (310) 666 7551 | Electricians | Malibu · Los Angeles County | — | — |
| A J Electric | Jeffrey Thomas Hulse | — | (530) 219 7509 | Electricians | Davis · Yolo County | — | — |
| A J Electric | Antonio Javier Juarez | — | (559) 631 0109 | Electricians | Visalia · Tulare County | — | — |
| A J Engineering & Construction INC | Andrzej Andrew Jagoda | — | (818) 343 5787 | GC, remodel, ADU | Tarzana · Los Angeles County | — | — |
| A J Excavation | Jimenez Alberto Alonso | — | (323) 587 3934 | Other | Los Angeles · Los Angeles County | — | — |
| A J Excavation INC | Alisa Marie Emmett | — | (559) 408 5908 | Electricians | Fresno · Fresno County | — | — |
| A J F Contracting INC | Aaron John Fernandez | — | (707) 319 4190 | GC, remodel, ADU | Napa · Napa County | — | — |