| Ars Remodeling Co | Ramirez Fortunato Jimenez | wweeiihhuuaanngg@gmail.com | (949) 278 6833 | GC, remodel, ADU | Costa Mesa · Orange County | — | — |
| Arsha Team Construction | Hootan Arasteh | — | (949) 992 5222 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Arsi Painting | Ruiz Miguel Calderon | — | (949) 940 5597 | Windows, patio, painters | Laguna Niguel · Orange County | — | — |
| Art Construction Enterprise | Victor Vahid Kianipey | — | (949) 291 1142 | GC, remodel, ADU | Laguna Woods · Orange County | — | — |
| Art Electric INC | Joungho Jang | — | (714) 337 8944 | Electricians | Fullerton · Orange County | — | — |
| Art Gautreau INC DBA Agi General Contracting | Andrew Dominic Gautreau | — | (714) 934 8066 | GC, remodel, ADU | Santa Ana · Orange County | — | — |
| Art La Sarge Acoustics | Art La Sarge Acoustics | — | (949) 697 0620 | Other | San Clemente · Orange County | — | — |
| Art Of Arborists | Art Of Arborists | — | (949) 494 1024 | Tree | Laguna Niguel · Orange County | — | — |
| Art Of Moulding | Art Of Moulding | — | (949) 680 9563 | GC, remodel, ADU | Santa Ana · Orange County | — | — |
| Art Pack INC | Jeffrey Robert Rubie | — | (310) 328 0300 | Other | Dana Point · Orange County | — | — |
| Art's A/c & Heating | Art's A/c & Heating | — | (714) 788 1611 | HVAC | Santa Ana · Orange County | — | — |
| Art's Painting | Art's Painting | — | (714) 585 5002 | Windows, patio, painters | Orange · Orange County | — | — |
| Art's Plumbing | Art's Plumbing | — | (949) 230 4648 | Other | Mission Viejo · Orange County | — | — |
| Art's Stone Restoration & Polish | Art's Stone Restoration & Polish | — | (714) 269 1375 | Restoration | Anaheim · Orange County | — | — |
| Art's Woodworker | Art's Woodworker | — | (714) 612 1456 | Other | Anaheim · Orange County | — | — |
| Arta Electric | Mohsen Shirazi | — | (949) 505 9050 | Electricians | Rancho Santa Margarita · Orange County | — | — |
| Arteaga's General Construction Corp | Garcia Gerardo Rodriguez | — | (714) 453 7007 | GC, remodel, ADU | Anaheim · Orange County | — | — |
| Artech Builder Corporation | Gang Zhang | — | (969) 337 0818 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Artech Construction Company | Jung Hun Yoon | — | (714) 904 1919 | Electricians | Santa Ana · Orange County | — | — |
| Artech Design & Construction INC | Sangbae Kwak | — | (714) 357 7208 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Artem Orlov | Artem Orlov | artemorlov@gmail.com | (323) 740 4117 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Artes Construction Group | Frank Anthony Eder | — | (714) 904 5055 | GC, remodel, ADU | Tustin · Orange County | — | — |
| Arthur La Bare | Arthur La Bare | — | (714) 349 3475 | GC, remodel, ADU | Costa Mesa · Orange County | — | — |
| Arthur Muro Ii | Arthur Muro Ii | — | (714) 350 4107 | Windows, patio, painters | Yorba Linda · Orange County | — | — |
| Artificial Rock Tech | Sergio Edilberto Vasquez Miranda | — | (949) 400 0517 | Other | Lake Forest · Orange County | — | — |
| Artisan Cabinets INC | Roger Steven Brehm | — | (714) 981 4557 | Other | Santa Ana · Orange County | — | — |
| Artisan Coatings Corp | Luis Carlos Lozano | — | (562) 402 5600 | Windows, patio, painters | Irvine · Orange County | — | — |
| Artisan Custom Builders INC | Richard Anthony Powell | — | (949) 370 9686 | GC, remodel, ADU | Dana Point · Orange County | — | — |
| Artisan Glass And Design INC | Robert Allison King | — | (714) 542 0507 | Windows, patio, painters | Anaheim · Orange County | — | — |
| Artisan Landscape Construction | Eduardo Anaya | — | (714) 328 4655 | Windows, patio, painters | Santa Ana · Orange County | — | — |
| Artisan Outdoor And Solena Landscape Co | Jacques Kyle Bloomfield | — | (714) 655 3624 | GC, remodel, ADU | Costa Mesa · Orange County | — | — |
| Artisian Tile Stone & Woodworks | Artisian Tile Stone & Woodworks | — | (657) 247 4780 | Other | Huntington Beach · Orange County | — | — |
| Artistic Build | Craig Alan Flanagan | — | (949) 572 9534 | GC, remodel, ADU | Lake Forest · Orange County | — | — |
| Artistic Design | Susan Diane Abass | — | (949) 375 4918 | Other | Newport Beach · Orange County | — | — |
| Artistic Granite Countertop Solutions | Artistic Granite Countertop Solutions | — | (714) 552 1503 | Other | Tustin · Orange County | — | — |
| Artistic Maintenance INC | Dirk Gregory Herrmann | — | (949) 581 9817 | GC, remodel, ADU | Lake Forest · Orange County | — | — |
| Artistic Tile & Marble Corp | Arechiga George | — | (714) 822 5617 | Other | Placentia · Orange County | — | — |
| Artistile | Dean Edward Lasso | — | (714) 596 2928 | Other | Buena Park · Orange County | — | — |
| Artistry In Brick | Artistry In Brick | — | (949) 291 5004 | Other | Mission Viejo · Orange County | — | — |
| Artitute Studio | Jie Wu | — | (626) 551 8386 | GC, remodel, ADU | La Habra · Orange County | — | — |