| 1 Day Coatings Ie | 1 Day Coatings Ie | — | (909) 521 2171 | Other | Orange · Orange County | — | — |
| 1 Day Epoxy Flooring | Jay Franklin Goetz | — | (714) 322 3156 | Other | Anaheim · Orange County | — | — |
| 1 Teamwork Fire Protection | Christopher Alan Cronin | — | (714) 309 2869 | Other | Newport Beach · Orange County | — | — |
| 1 Tom Plumber Anaheim / Brea | Rickie Machie Moore | — | (714) 769 6300 | Other | Anaheim · Orange County | — | — |
| 2 J's Custom Plumbing INC DBA 2 J's Custom Plumbing | Cervantes Hernandez Julio | — | (949) 891 3669 | Other | Anaheim · Orange County | — | — |
| 24/7 Hauling & Demo INC | Jesus Gerardo Munoz | — | (949) 942 7774 | Other | Tustin · Orange County | — | — |
| 2bsavage INC | Todd D Barden | — | (716) 640 2553 | Other | San Clemente · Orange County | — | — |
| 3 Brothers Plumbing INC | Gerardo Daniel Zuniga Meza | — | (909) 525 8153 | Other | Anaheim · Orange County | — | — |
| 3 D G R Installations | Donald Gene Jr Ritter | — | (714) 525 4034 | Other | La Habra · Orange County | — | — |
| 3 Day Blinds LLC | Mbo LLC 3db | — | (949) 236 3540 | Other | Irvine · Orange County | — | — |
| 3-d Door Company INC | Mark Anthony Picco | — | (714) 625 0311 | Other | Placentia · Orange County | — | — |
| 313 Tec Solutions | 313 Tec Solutions | — | (916) 390 9603 | Other | Seal Beach · Orange County | — | — |
| 321 Epoxy Coatings | Walter Alexander Guevara | — | (714) 376 6017 | Other | Tustin · Orange County | — | — |
| 4 Pals INC | Gary Knox Powell | — | (714) 375 1227 | Other | Huntington Beach · Orange County | — | — |
| 4G Trenching | Garrido Humberto Olivares | — | (714) 597 5901 | Other | Orange · Orange County | — | — |
| 5 Stars Flooring Installers INC | Albino Jose Garcia | — | (562) 612 8013 | Other | Cypress · Orange County | — | — |
| 502 Concrete INC | Elvis Udeni Navarro Paz | — | (949) 278 1254 | Other | Mission Viejo · Orange County | — | — |
| 548 Group INC | Timothy Perry Free | — | (949) 861 1881 | Other | San Clemente · Orange County | — | — |
| 6A Audio Video | Chance Kent Longworth | — | (714) 345 8107 | Other | Fountain Valley · Orange County | — | — |
| 714 Concrete Services INC | Jeffrey Dean Mc Clard | — | (714) 646 9816 | Other | Placentia · Orange County | — | — |
| 714 Garage Doors | 714 Garage Doors | — | (714) 815 5688 | Other | Yorba Linda · Orange County | — | — |
| 714 Plumbing INC | Edgar Joevany Estrada | — | (714) 362 7948 | Other | Anaheim · Orange County | — | — |
| 770 Local Garage Door & Gate INC | Richard Jr Santillan | — | (714) 600 1664 | Other | Santa Ana · Orange County | — | — |
| 8 Plumbing | 8 Plumbing | — | (714) 860 0234 | Other | Garden Grove · Orange County | — | — |
| A & A Stone Works INC | Houman Mike Ala'i | — | (714) 602 1011 | Other | Santa Ana · Orange County | — | — |
| A & B Concrete Service INC | Bryan Maynard Weber | — | (714) 393 2256 | Other | Yorba Linda · Orange County | — | — |
| A & Bella's Flooring INC | Moises Morales-Orozco | — | (714) 409 7264 | Other | Santa Ana · Orange County | — | — |
| A & H Cleaning Services INC | Annie Castro Duenas | — | (714) 603 8524 | Other | Cypress · Orange County | — | — |
| A & J Construction | Jose Humberto Lopez Lemus | — | (714) 925 8546 | Other | Santa Ana · Orange County | — | — |
| A & J Sheet Metal INC | James Joseph Hanna | — | (714) 799 2861 | Other | Stanton · Orange County | — | — |
| A & M Contracting | Anthony Salvatore Marraccino | — | (949) 636 5125 | Other | Lake Forest · Orange County | — | — |
| A - 1 Apartment Supply INC | Charles Christopher Grimmett | — | (714) 754 1208 | Other | Fountain Valley · Orange County | — | — |
| A - M Fence Works | A - M Fence Works | — | (714) 675 4576 | Other | Santa Ana · Orange County | — | — |
| A - Plus Plumbing & Rooter | Ralph Dean Dohle | — | (949) 582 2814 | Other | Laguna Niguel · Orange County | — | — |
| A 2 Z Plumbing Services INC | Daniel Perry Moller | — | (714) 572 9471 | Other | Placentia · Orange County | — | — |
| A A P M W C INC DBA All American Powerwash | Monte Wayne Cobb | — | (714) 315 0271 | Other | Huntington Beach · Orange County | — | — |
| A And G Plumbing Services INC | Alvaro Gomez | — | (949) 498 8185 | Other | San Clemente · Orange County | — | — |
| A Available Affordable Plumber INC | Maxwell Whitney Wichman | — | (714) 408 8160 | Other | Huntington Beach · Orange County | — | — |
| A B Lujan Co | Antonio Barron Lujan | — | (714) 330 9350 | Other | Garden Grove · Orange County | — | — |
| A Better Blind And Drapery | A Better Blind And Drapery | — | (949) 498 3212 | Other | Rancho Mission Viejo · Orange County | — | — |