| A B M Painting And Wallcovering Corp | Carlos Manuel Flores | — | (951) 603 0369 | Windows, patio, painters | Corona · Riverside County | — | — |
| A B Morton Construction LLC | Andre Blaine Morton | — | (916) 960 9513 | GC, remodel, ADU | Roseville · Placer County | — | — |
| A B O Electric | Eskandari Abram | — | (818) 404 6181 | Electricians | Palmdale · Los Angeles County | — | — |
| A B O Electric Services INC | Antonio Brito | — | (562) 446 5715 | Electricians | Moreno Valley · Riverside County | — | — |
| A B O Landscaping | A B O Landscaping | — | (415) 488 7166 | Windows, patio, painters | Pinole · Contra Costa County | — | — |
| A B P / All Bay Plumbing INC | Richard Hernandez Ochoa | — | (209) 551 4357 | Other | Modesto · Stanislaus County | — | — |
| A B P Backflow INC | Jeffrey Scott Sadoski | tech@hivedigital.com | (888) 356 7761 | Other | San Diego · San Diego County | — | — |
| A B P Plumbing INC | Steve James Mc Creadie | — | (408) 757 6267 | Other | Belmont · San Mateo County | — | — |
| A B Padilla's Electric INC | Jose Antonio Villegas | — | (310) 908 3901 | Electricians | Lynwood · Los Angeles County | — | — |
| A B Painting | A B Painting | julio@andybryanpainting.com | (831) 917 6569 | Windows, patio, painters | Salinas · Monterey County | — | — |
| A B Painting Co INC | Baruch Amnon | — | (323) 974 7006 | Windows, patio, painters | Los Angeles · Los Angeles County | — | — |
| A B Plumbing | Antal Benyo | — | (760) 715 1165 | Other | Vista · San Diego County | — | — |
| A B Plumbing | A B Plumbing | — | (415) 215 5821 | Other | San Bruno · San Mateo County | — | — |
| A B Plumbing | A B Plumbing | — | (415) 333 5566 | Other | Oakland · Alameda County | — | — |
| A B Plumbing & Heating INC | Andrew Varga | — | (323) 788 8413 | HVAC | West Hollywood · Los Angeles County | — | — |
| A B R Electric Co INC | Acey Byron Raley | — | (559) 351 4159 | Electricians | Sanger · Fresno County | — | — |
| A B Raingutter Systems INC | Salvador Bautista | — | (760) 532 9687 | Other | Escondido · San Diego County | — | — |
| A B Roofing | Armando Badillo Diaz | info@christianroofing.com | (760) 717 5957 | Other roofers | Vista · San Diego County | — | — |
| A B S Connection INC | George Gregory Klisfoff | — | (559) 970 0280 | Other | San Joaquin · Fresno County | — | — |
| A B S Construction | Scott Allen Gorman | — | (818) 822 8775 | GC, remodel, ADU | Agoura Hills · Los Angeles County | — | — |
| A B S Construction Group INC | Edgar William Flores | — | (310) 861 9974 | GC, remodel, ADU | Beverly Hills · Los Angeles County | — | — |
| A B S Glass Incorporated | Cecilio Duarte Fuentes | — | (805) 966 1771 | Windows, patio, painters | Santa Barbara · Santa Barbara County | — | — |
| A B S Manufacturers INC | Ricardo Avila Mancias | — | (408) 295 5984 | Other | San Jose · Santa Clara County | — | — |
| A B S Netcom INC DBA Solarium Energy | Casey Charles Johnson | — | (888) 700 4786 | Electricians | San Diego · San Diego County | — | — |
| A B S Sandblasting | A B S Sandblasting | — | (760) 770 6837 | Windows, patio, painters | Cathedral City · Riverside County | — | — |
| A B S Shoring INC | Arash Soleimany | — | (310) 444 9994 | GC, remodel, ADU | Van Nuys · Los Angeles County | — | — |
| A B Sandoval Landscaping & Maintenance INC | Cruz Enrique Romero | — | (916) 284 6928 | Windows, patio, painters | Lincoln · Placer County | — | — |
| A B Steel Construction | Anthony Michael Barrett | — | (707) 235 4987 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| A B Stone & Tile Company | Bernal Toma Andres | — | (818) 799 4399 | Other | Sylmar · Los Angeles County | — | — |
| A B Supply INC | La Cruz Jaime De | — | (415) 251 9365 | GC, remodel, ADU | Novato · Marin County | — | — |
| A B T Electric | Mease Buthan | — | (510) 489 3477 | Electricians | Hayward · Alameda County | — | — |
| A B T Plumbing & Drain Service INC | Andrew Bennett Twidwell | — | (530) 272 9120 | HVAC | Bowman · Placer County | — | — |
| A B T Plumbing And Rooter | Robert John Titus | — | (310) 863 0577 | Other | Rancho Palos Verdes · Los Angeles County | — | — |
| A B Tile | Bgatov Aleksey | — | (916) 416 6976 | Other | Sacramento · Sacramento County | — | — |
| A B Tree Service | Magana Eliel | — | (831) 737 0016 | Tree | Salinas · Monterey County | — | — |
| A B Ventures INC | Aaron Fleck Chennells | — | (949) 283 4696 | GC, remodel, ADU | San Clemente · Orange County | — | — |
| A B W Construction INC | Paul Michael Tuttle | — | (408) 781 1307 | GC, remodel, ADU | Los Gatos · Santa Clara County | — | — |
| A B W Welding | A B W Welding | — | (760) 608 0527 | Other | Inyokern · Kern County | — | — |
| A B Welding INC | August Todd Benson | — | (559) 291 6956 | HVAC | Prather · Fresno County | — | — |
| A B Z Builders INC | Anandra Singh | — | (408) 661 7106 | Other roofers | Milpitas · Santa Clara County | — | — |