| A P R Roofing | Michael Brian Ayala | andre@aprroofing.com | (661) 406 7475 | Other roofers | Lancaster · Los Angeles County | — | — |
| A P R Service | Ruben Cristobal Tse | — | (415) 370 9221 | Other | San Francisco · San Francisco County | — | — |
| A P S Builders INC | Paul Aldrik Stykel | — | (760) 519 2897 | GC, remodel, ADU | Ramona · San Diego County | — | — |
| A P S Construction INC | Adel Awad Saad | — | (818) 641 9221 | HVAC | Riverside · Riverside County | — | — |
| A P S Contracting INC | Alex Philippe Shipp | — | (310) 897 7606 | GC, remodel, ADU | Rancho Palos Verdes · Los Angeles County | — | — |
| A P S Environmental INC | Heidi Hage | info@apsenvironmental.com | (916) 348 2800 | Other | North Highlands · Sacramento County | — | — |
| A P S General Construction INC | Anthony Paul Smets | — | (818) 266 9451 | GC, remodel, ADU | Granada Hills · Los Angeles County | — | — |
| A P S Overhead Door & Security Co | Randall Henry Scheppmann | — | (619) 588 6385 | Alarm and generators | El Cajon · San Diego County | — | — |
| A P S Painting INC | Hakob Ladoyan | — | (916) 858 8586 | Windows, patio, painters | Rancho Cordova · Sacramento County | — | — |
| A P S Remodeling & Construction | Anthony Paul Stasinakis | — | (916) 519 6758 | GC, remodel, ADU | West Sacramento · Yolo County | — | — |
| A P S Rooter | A P S Rooter | — | (408) 529 8274 | Other | San Jose · Santa Clara County | — | — |
| A P S Security Systems INC | Aaron Micah Hoffman | — | (818) 887 7089 | Electricians | West Hills · Los Angeles County | — | — |
| A P Sill | A P Sill | — | (951) 760 4152 | Other | Valley Center · San Diego County | — | — |
| A P T General Engineering INC | Russell George Elrod | — | (661) 323 0343 | Other | Bakersfield · Kern County | — | — |
| A P Thomas Construction INC | Paul Gregory Thomas | — | (916) 483 9000 | GC, remodel, ADU | Sacramento · Sacramento County | — | — |
| A P V Remodeling | A P V Remodeling | — | (408) 356 6902 | GC, remodel, ADU | Monte Sereno · Santa Clara County | — | — |
| A P W Builders INC | Abraham Taniel Bosnoyan | — | (818) 982 4279 | GC, remodel, ADU | North Hollywood · Los Angeles County | — | — |
| A P Whiteley | A P Whiteley | — | (310) 980 3277 | Other | Culver City · Los Angeles County | — | — |
| A P Z Landscaping | A P Z Landscaping | — | (909) 766 5797 | Windows, patio, painters | Pomona · Los Angeles County | — | — |
| A Packard Corporation | Charles Davis Allen | apackard.cvsui@slmail.me | (415) 888 8202 | GC, remodel, ADU | Mill Valley · Marin County | — | — |
| A Pain In The Drain Plumbing & Rooter Service | Robert Vincent Boarder | — | (530) 392 2168 | Other | Yuba City · Sutter County | — | — |
| A Painting | A Painting | — | (805) 345 9614 | Windows, patio, painters | Grover Beach · San Luis Obispo County | — | — |
| A Painting Company | Daniel Joseph Mahoney | — | (858) 886 9211 | Windows, patio, painters | Escondido · San Diego County | — | — |
| A Pal Construction | Palosi Aurel | — | (530) 415 6023 | GC, remodel, ADU | Olivehurst · Yuba County | — | — |
| A Palma Plumbing | Jeffrey Bautista Palma | — | (619) 207 0932 | Other | San Diego · San Diego County | — | — |
| A Passion For Gardening | A Passion For Gardening | — | (760) 580 1079 | Windows, patio, painters | Escondido · San Diego County | — | — |
| A Perez Construction | Alfonso Martin Perez | — | (650) 508 1569 | GC, remodel, ADU | San Carlos · San Mateo County | — | — |
| A Perez Landscaping & Maintenance | A Perez Landscaping & Maintenance | — | (559) 916 4174 | Windows, patio, painters | Fresno · Fresno County | — | — |
| A Perez Painting | A Perez Painting | — | (510) 334 9105 | Windows, patio, painters | Berkeley · Alameda County | — | — |
| A Perfect Plumbing Solution | A Perfect Plumbing Solution | — | (805) 709 6311 | Other | Arroyo Grande · San Luis Obispo County | — | — |
| A Perfect Touch Painting LLC | Matthew Martinez | amy@aperfecttouchpainting.com | (909) 977 2220 | Windows, patio, painters | Chino · San Bernardino County | — | — |
| A Perfect Vision Remodeling INC | Shelley Dekel | — | (323) 839 0504 | GC, remodel, ADU | North Hollywood · Los Angeles County | — | — |
| A Piece Of Work Construction | Gavin Brent Owens | — | (310) 418 5322 | GC, remodel, ADU | Burbank · Los Angeles County | — | — |
| A Pilotte Construction | Albert Joseph Pilotte | — | (619) 455 5097 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| A Pine Plumbing Co | Christian Trevor Hand | — | (909) 599 5950 | Other | Covina · Los Angeles County | — | — |
| A Place To Grow | A Place To Grow | — | (805) 704 1313 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| A Plumbing | A Plumbing | — | (415) 336 5098 | Other | San Francisco · San Francisco County | — | — |
| A Plumbing Company | Zhang Guan Dong | — | (415) 713 3186 | Other | San Francisco · San Francisco County | — | — |
| A Plus A Electric INC | Azaryan Aram | — | (818) 726 4813 | Electricians | Sun Valley · Los Angeles County | — | — |
| A Plus Advanced Tinting INC | Sergio Humberto Sanabria | — | (310) 889 4591 | Other | Whittier · Los Angeles County | — | — |