| A C Power Electric INC | Ismael Lopez Gonzalez | — | (805) 236 8178 | Electricians | Oxnard · Ventura County | — | — |
| A C Pozos Electric Corporation | Anthony Curtis Pozos | — | (714) 546 0366 | Electricians | Costa Mesa · Orange County | — | — |
| A C Prime Builders | A C Prime Builders | — | (909) 875 6058 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| A C Quality Construction | A C Quality Construction | — | (661) 978 7652 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| A C R Construction | Anthony Joseph Ricketts | — | (209) 915 1988 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| A C R Dynamic INC | Raul Escalante Zamudio | — | (760) 560 8005 | HVAC | Temecula · Riverside County | — | — |
| A C R Electrical | Brian Hung Nguyen | — | (714) 981 4631 | Electricians | Santa Ana · Orange County | — | — |
| A C R H Construction INC | Adam Jay Carter | — | (951) 310 8305 | GC, remodel, ADU | Lake Elsinore · Riverside County | — | — |
| A C R Painting And Home Improvement | Arnulfo Rodriguez Contreras | — | (949) 510 4430 | GC, remodel, ADU | San Juan Capistrano · Orange County | — | — |
| A C R Pro Painting | A C R Pro Painting | acrpropainting@gmail.com | (831) 288 4209 | Windows, patio, painters | Watsonville · Santa Cruz County | — | — |
| A C R Professional Plumbing | A C R Professional Plumbing | — | (323) 873 4974 | Other | Los Angeles · Los Angeles County | — | — |
| A C R Technologies | A C R Technologies | — | (951) 757 5483 | HVAC | Rancho Cucamonga · San Bernardino County | — | — |
| A C Ramirez Floor Covering INC | Michael Paul Ramirez | — | (805) 965 0095 | Other | Santa Barbara · Santa Barbara County | — | — |
| A C S Cabinets & Countertops | Gerardo Rubio Hernandez | — | (909) 518 2982 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |
| A C S Construction | Anthony Carl Sullivan | — | (916) 215 7733 | GC, remodel, ADU | Citrus Heights · Sacramento County | — | — |
| A C S Controls Corporation | Christopher George Fausett | — | (916) 640 8800 | HVAC | North Highlands · Sacramento County | — | — |
| A C S Enterprises INC | Wayne Douglas Kochanek | — | (909) 595 3484 | GC, remodel, ADU | Walnut · Los Angeles County | — | — |
| A C S General Construction | Belmontes Adan Orozco | — | (951) 966 6510 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| A C S Refrigeration | A C S Refrigeration | — | (760) 680 3045 | HVAC | Hesperia · San Bernardino County | — | — |
| A C Seal Coating INC | Michael Anthony Cognetti | — | (209) 532 8955 | Other | Sonora · Tuolumne County | — | — |
| A C Sealant | A C Sealant | — | (209) 296 4531 | Other | Pine Grove · Amador County | — | — |
| A C Services | Alberth Jhony Melgar Melgar | — | (209) 321 0428 | HVAC | Tracy · San Joaquin County | — | — |
| A C Services Landscape Maintenance INC | Gustavo Adolfo Vidalon | — | (415) 827 3044 | Windows, patio, painters | Novato · Marin County | — | — |
| A C Spraggins Engineering & Underground INC | Brett C Spraggins | — | (714) 995 7552 | Other | Ontario · San Bernardino County | — | — |
| A C Squared Company | Papademetropoulos Lazaros | — | (310) 804 8999 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| A C Systems INC DBA Air Conditioning Systems | Joseph Anthony Allen | — | (925) 676 2103 | HVAC | Concord · Contra Costa County | — | — |
| A C T C Young INC | Joshua Eugene Young | — | (916) 765 1308 | Other | Placerville · El Dorado County | — | — |
| A C T Glass | A C T Glass | — | (510) 487 6731 | Windows, patio, painters | Hayward · Alameda County | — | — |
| A C T INC | Thomas Wayne Cronan | — | (909) 908 4311 | Other | Upland · San Bernardino County | — | — |
| A C T Installs | A C T Installs | actinstalls@gmail.com | (805) 245 1667 | Other | Goleta · Santa Barbara County | — | — |
| A C Tech Construction | Albert Salvador Corado | — | (818) 799 4200 | GC, remodel, ADU | Santa Clarita · Los Angeles County | — | — |
| A C V Roofing INC | Adrian Villanueva | — | (510) 535 2580 | Other roofers | Oakland · Alameda County | — | — |
| A C W Builders | A C W Builders | — | (951) 272 0577 | Electricians | Corona · Riverside County | — | — |
| A C W Construction | Michael James Wagner | — | (714) 404 4224 | GC, remodel, ADU | Yorba Linda · Orange County | — | — |
| A C W Construction INC | Richard Brian Andrews | — | (530) 581 2292 | GC, remodel, ADU | Olympic Valley · Placer County | — | — |
| A C Winters Construction INC | Alfred Charles Jr Winters | — | (619) 490 6504 | GC, remodel, ADU | Ramona · San Diego County | — | — |
| A C's Coastal Painting | A C's Coastal Painting | — | (805) 934 1150 | Windows, patio, painters | Santa Maria · Santa Barbara County | — | — |
| A Cabral Roofing Group (crg) | Cabral Armando | — | (562) 869 4994 | Other roofers | Downey · Los Angeles County | — | — |
| A Calhoun Roofing Company | Richard Andrew Calhoun | — | (323) 755 2100 | Other roofers | Lakewood · Los Angeles County | — | — |
| A Car For You INC | Scott Gordon Brauninger | — | (415) 519 5180 | GC, remodel, ADU | Sausalito · Marin County | — | — |