| All Lit Up Oc | Wayne Charles Ii Moore | — | (949) 212 6935 | Other | San Clemente · Orange County | — | — |
| All Mouldings & Finish Woodworking | All Mouldings & Finish Woodworking | — | (714) 308 1083 | GC, remodel, ADU | Tustin · Orange County | — | — |
| All Paint Services INC | Fredy Alberto Umana | — | (714) 317 0333 | Windows, patio, painters | Anaheim · Orange County | — | — |
| All Phase Contractors And Builders INC | James Beck Marolt | — | (714) 458 3608 | GC, remodel, ADU | Costa Mesa · Orange County | — | — |
| All Phases And Sons Restoration INC | Mark Mestaz | — | (949) 500 7166 | Restoration | San Clemente · Orange County | — | — |
| All Plumbing Services 714 INC | Javier Jesus Rodriguez | — | (714) 422 6444 | Other | Anaheim · Orange County | — | — |
| All Plumbing Solutions | All Plumbing Solutions | — | (562) 841 4367 | Other | Garden Grove · Orange County | — | — |
| All Points Restoration And Construction | James Michael Borson | — | (909) 322 6109 | GC, remodel, ADU | Brea · Orange County | — | — |
| All Pro Builders INC | Paul Allan Paniagua | — | (714) 255 0131 | GC, remodel, ADU | Fullerton · Orange County | — | — |
| All Pro Commercial Door Co | Jacob Robert Johnson | — | (562) 833 2971 | Other | Stanton · Orange County | — | — |
| All Pro Contracting Services | David Bruce Clever | — | (714) 779 1102 | GC, remodel, ADU | Yorba Linda · Orange County | — | — |
| All Pro Finishes | All Pro Finishes | — | (949) 491 4509 | Windows, patio, painters | Lake Forest · Orange County | — | — |
| All Pro Framing Co | Jesus Isaac Guerrero | — | (657) 357 5153 | Other | Santa Ana · Orange County | — | — |
| All Pro Jetting & Plumbing | Aroldo Isaias Lopez | — | (714) 598 5748 | Other | Orange · Orange County | — | — |
| All Pro Painting | All Pro Painting | — | (714) 521 5262 | Windows, patio, painters | La Palma · Orange County | — | — |
| All Proof Decks INC | Dafna Hannah Ben-Zeev | — | (714) 253 3330 | GC, remodel, ADU | Costa Mesa · Orange County | — | — |
| All Quality Roofing Co | Enriquez Miguel | — | (714) 299 8856 | Other roofers | Placentia · Orange County | — | — |
| All Right Electric INC | Tony Akiva Shuter | — | (714) 760 4573 | Electricians | Huntington Beach · Orange County | — | — |
| All Seasons Contracting INC | Michael Dee Bean | — | (714) 524 5788 | GC, remodel, ADU | Placentia · Orange County | — | — |
| All Seasons Home Improvement | Jeun Calvin | — | (562) 407 5350 | Other roofers | Costa Mesa · Orange County | — | — |
| All Seasons Landscape And Maint INC | Ortiz Armando Primitivo | — | (714) 495 7428 | Windows, patio, painters | Fullerton · Orange County | — | — |
| All Seasons Sprinkler And Landscaping | David Patrick Keane | — | (714) 546 3792 | Windows, patio, painters | Costa Mesa · Orange County | — | — |
| All Service Roofing | Vazquez Bryan | info@allserviceroofing.net | (714) 457 0906 | Other roofers | Garden Grove · Orange County | — | — |
| All Space Design & Construction | Yao Lianlian | — | (949) 880 7877 | GC, remodel, ADU | Irvine · Orange County | — | — |
| All Star Air Systems INC | Jack S Dresser | — | (714) 724 3547 | HVAC | Fountain Valley · Orange County | — | — |
| All Star Asphalt Engineering Services | Gregory Allen Beckner | — | (714) 488 0899 | Other | Ladera Ranch · Orange County | — | — |
| All Star Construction | Do Quang Dang | — | (949) 279 8686 | GC, remodel, ADU | Garden Grove · Orange County | — | — |
| All Star Enterprises | Mary Ann Isaksen | — | (714) 379 8005 | Other | Westminster · Orange County | — | — |
| All Star Home Theater | All Star Home Theater | — | (714) 812 6436 | Other | Yorba Linda · Orange County | — | — |
| All Star Painting | All Star Painting | — | (714) 828 5088 | Windows, patio, painters | Anaheim · Orange County | — | — |
| All Star Plumbing & Fire Sprinkler INC | Edward Allan Sirignano | — | (949) 470 0072 | Other | Lake Forest · Orange County | — | — |
| All Star Pool & Spa Services | Dawn Marie Rowe | — | (714) 536 5866 | Pool | Huntington Beach · Orange County | — | — |
| All Stars Builders INC | Lance Reed | — | (866) 226 5141 | Electricians | Orange · Orange County | — | — |
| All Stars Service Co | Spector Igor | — | (855) 558 5678 | HVAC | San Juan Capistrano · Orange County | — | — |
| All Starz Electrical | Nicholas Paul Deantonio | — | (949) 456 3476 | Electricians | San Juan Capistrano · Orange County | — | — |
| All Surface Roofing Oc | Roque Duenas Concepcion | contact@allsurfaceroofingoc.com | (714) 834 1462 | Other roofers | Anaheim · Orange County | — | — |
| All Systems Go | All Systems Go | — | (714) 237 9200 | Electricians | Huntington Beach · Orange County | — | — |
| All That Glass Shop | Kenneth Lee Kauffman | — | (949) 276 7906 | Windows, patio, painters | San Clemente · Orange County | — | — |
| All The Best Locksmith | Madhala Idan | — | (714) 783 4100 | Other | Anaheim · Orange County | — | — |
| All Thingz Electric LLC | Anthony William Feeney | contact@allthingzelectric.com | (949) 939 1843 | Electricians | Aliso Viejo · Orange County | — | — |