| Acacia Landscape Incorporated | Kubilis Diaz Pablo | — | (619) 540 6433 | Windows, patio, painters | Chula Vista · San Diego County | — | — |
| Acacia M & E INC | Susan Dawn Pope | — | (916) 685 1887 | HVAC | Elk Grove · Sacramento County | — | — |
| Acacia Overhead Doors | Acacia Overhead Doors | — | (760) 688 6903 | Other | Bonsall · San Diego County | — | — |
| Academic Construction INC | Wesley Allen Wallace | — | (916) 622 9959 | GC, remodel, ADU | Sacramento · Sacramento County | — | — |
| Academy Backflow Service INC | Rolf Daniel Wachter | admin@academybackflow.com | (619) 561 0991 | Other | Jamul · San Diego County | — | — |
| Academy Construction Services INC | Robert Barnes Woods | — | (650) 480 0715 | GC, remodel, ADU | Redwood City · San Mateo County | — | — |
| Academy Electric INC | Diane Rhea Gentry | — | (714) 289 9143 | Electricians | Orange · Orange County | — | — |
| Academy Locksmith LP | Timothy Francis Braun | — | (714) 701 1300 | Other | Anaheim · Orange County | — | — |
| Academy Mechanical INC | Lance Richard Whitney | — | (714) 955 9170 | Other | Laguna Woods · Orange County | — | — |
| Academy Roofing Company INC | Jeong Keun Kim | — | (916) 919 1054 | Other roofers | Rio Oso · Sutter County | — | — |
| Academy Rooter & Plumbing Service | Ashkenazi Moshe | — | (310) 990 6120 | Other | Los Angeles · Los Angeles County | — | — |
| Acadia | Chester Karin Valdovinos | — | (714) 921 4060 | Other | Orange · Orange County | — | — |
| Acadia Corporation | Mary Louise Orphey | bd@acadia-pharm.com | (619) 574 0404 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Acadia Design & Construction | Dale Herbert Brown | — | (619) 316 1290 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Acadian Development INC | Derek James Broussard | — | (626) 533 0001 | GC, remodel, ADU | Sierra Madre · Los Angeles County | — | — |
| Acaloa Signs | Kenneth Charles Sorgman | hola@acaloa805.com | (805) 680 9403 | Other | Santa Barbara · Santa Barbara County | — | — |
| Acampora INC DBA Cabo Ceilings | Jack Darren Acampora | — | (760) 390 1246 | Other | San Marcos · San Diego County | — | — |
| Acanthus Cabinetry INC | Duane William Kegley | — | (408) 693 0798 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Acanthus Paint Design | Acanthus Paint Design | — | (831) 595 2819 | Windows, patio, painters | Monterey · Monterey County | — | — |
| Acapella Building Contractors | David Thomas Grover | — | (707) 789 0422 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Acapulco Gold Quality Painting | Acapulco Gold Quality Painting | — | (925) 818 9260 | Windows, patio, painters | Concord · Contra Costa County | — | — |
| Acapulco Home Renovation & Builders | Ivan Manuel Meza | — | (805) 440 6600 | GC, remodel, ADU | Pismo Beach · San Luis Obispo County | — | — |
| Acar Construction INC | Tufan Acar | — | (949) 516 1310 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Acc | Casillas Arturo | — | (310) 418 6208 | GC, remodel, ADU | Inglewood · Los Angeles County | — | — |
| Acc & Engineering LLC | Adel F Ibrahim | — | (714) 844 2140 | HVAC | Anaheim · Orange County | — | — |
| Acc Construction INC | Jeffrey Alan Kindness | — | (714) 620 2343 | Electricians | Cypress · Orange County | — | — |
| Acc Contracting INC | Patricio Hernan Picolomini | — | (818) 683 4618 | GC, remodel, ADU | Granada Hills · Los Angeles County | — | — |
| Acc Contractors INC | Afaf Setrak Ajamian | — | (626) 969 9797 | HVAC | Azusa · Los Angeles County | — | — |
| Acc Electric | Andrew Cameron Couch | — | (818) 518 7453 | Electricians | Simi Valley · Ventura County | — | — |
| Acc Interior Wall Systems | Acc Interior Wall Systems | — | (951) 662 0251 | Other | Jurupa Valley · Riverside County | — | — |
| Acc Security & Surveillance Camera Systems | Acc Security & Surveillance Camera Systems | service@securitycameralosangeles.com | (310) 966-9919 | Alarm and generators | Los Angeles · Los Angeles County | — | — |
| Acc West Coast & Ragnar Benson A Joint Venture | Civil Constructors West Coast LLC American | — | (707) 746 8028 | Electricians | Benicia · Solano County | — | — |
| Accel Construction | Michael Brian Hobson | — | (310) 905 7713 | Electricians | Mojave · Kern County | — | — |
| Accel Electric | Francisco Rodriguez Aguilera | accel@accelelectric.com | (510) 377 8157 | Electricians | Castro Valley · Alameda County | — | — |
| Accel Engineering Construction & Consulting INC | Sarbaz Faranak | — | (310) 993 9733 | GC, remodel, ADU | Rolling Hills Estates · Los Angeles County | — | — |
| Accel Fire Protection Services | Huong Giang Thi Tran | — | (408) 205 4407 | Other | San Jose · Santa Clara County | — | — |
| Accel Framing INC | Ryan Thomas Holmes | — | (619) 445 1340 | GC, remodel, ADU | Poway · San Diego County | — | — |
| Accel Integrated Electronics | Accel Integrated Electronics | — | (619) 851 7932 | Other | San Diego · San Diego County | — | — |
| Accel Painting | Brian Alex Fink | admin@accelpainting.com | (650) 784 8123 | Windows, patio, painters | Hercules · Contra Costa County | — | — |
| Accelerate Construction INC | Alon Damari | — | (818) 348 4840 | GC, remodel, ADU | Woodland Hills · Los Angeles County | — | — |