| Abacherli Engineering INC | Frank Steven Abacherli | — | (951) 323 0716 | Other | Mira Loma · Riverside County | — | — |
| Abacherli Fence Company | Rodney Warren Herd | abacherlifence@cruzio.com | (831) 476 2255 | Other | Soquel · Santa Cruz County | — | — |
| Abacus Concrete | Abacus Concrete | ep@abacusconcrete.com | (925) 667 8734 | Other | Brentwood · Contra Costa County | — | — |
| Abacus Construction | Cindy Chain-hsin Chang | — | (310) 897 8729 | GC, remodel, ADU | Palos Verdes Peninsula · Los Angeles County | — | — |
| Abacus Construction Group | Alireza Kashani | — | (901) 871 3880 | Other | San Jose · Santa Clara County | — | — |
| Abacus Construction INC | Garret Ryan Langum | — | (530) 215 3104 | Other | Redding · Shasta County | — | — |
| Abacus Group Builders INC | Charles Brown Iii Voorhis | — | (415) 927 0667 | GC, remodel, ADU | Corte Madera · Marin County | — | — |
| Abacus Imt INC | Angulo Robert | — | (661) 588 4216 | Other | Bakersfield · Kern County | — | — |
| Abadan Construction Company | John Khudan Golpashin | — | (310) 367 4121 | GC, remodel, ADU | Santa Clarita · Los Angeles County | — | — |
| Abadub Construction INC | Alexandr Polcanov | sales@abadubconstruction.com | (628) 222-4891 | Electricians | San Francisco · San Francisco County | — | — |
| Abago Electric | Barrientos Abisai | — | (619) 804 4490 | Electricians | San Diego · San Diego County | — | — |
| Abalone Mountain Landscapes INC | Adam Warren Kistner | — | (530) 205 0725 | Windows, patio, painters | Nevada City · Nevada County | — | — |
| Abalone Pool & Spa | Abalone Pool & Spa | — | (619) 889 7665 | Pool | La Mesa · San Diego County | — | — |
| Aban C Construction INC | Marco David Aban | — | (707) 272 8793 | GC, remodel, ADU | Fort Bragg · Mendocino County | — | — |
| Abans Construction | Cesar Ricardo Aban Caamal | — | (415) 261 0189 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| Abante Rooter And Plumbing INC | Fred Ramezan Heidarpour | — | (510) 534 1636 | Other | Emeryville · Alameda County | — | — |
| Abantees | Melvin Jack Mc Vay | — | (916) 417 2745 | Other | Wilton · Sacramento County | — | — |
| Abarca Construction INC | Andrew Manuel Abarca | — | (760) 766 5088 | GC, remodel, ADU | Bermuda Dunes · Riverside County | — | — |
| Abarca Landscape Company | Anthony Samuel Avarca | anthony@abarcalandscape.com | (951) 223-6009 | Windows, patio, painters | Hemet · Riverside County | — | — |
| Abarca Painting INC | Imer Noel Abarca Chavez | — | (559) 309 7945 | Windows, patio, painters | Visalia · Tulare County | — | — |
| Abarcas Construction | Mayron Bladimir Abarca Tobar | — | (408) 836 7237 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| Abarcas Repipe & Plumbing INC | Juan Carlos Abarca Oliva | — | (669) 226 8147 | Other | San Jose · Santa Clara County | — | — |
| Abart Construction | Fritz Gustav Gero Lapenson | — | (760) 559 0597 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| Abass-sepehr Bahram | Abass-sepehr Bahram | — | (310) 892 2622 | Electricians | Beverly Hills · Los Angeles County | — | — |
| Abateco | Joseph Daniel Blanton | — | (661) 391 9800 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| Abatex LLC | Peter Allen Miko | — | (833) 248 0688 | Other roofers | Goleta · Santa Barbara County | — | — |
| Abatti Construction | Joseph John Abatti | — | (951) 514 1340 | GC, remodel, ADU | Murrieta · Riverside County | — | — |
| Abay Painting | Abay Painting | — | (510) 402 8477 | Windows, patio, painters | Fremont · Alameda County | — | — |
| Abayla Contracting Services INC | Tony Fernandes | — | (925) 820 2034 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| Abb Builders INC | Todd Mason Belluomini | — | (707) 327 8640 | GC, remodel, ADU | Winters · Yolo County | — | — |
| Abba And Sons Construction Co | Mary Baez Garcia | — | (909) 614 3380 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| Abba Builder Co | Duy Ngoc Dinh | edward@abbabuilder.com | (714) 813 5409 | GC, remodel, ADU | Garden Grove · Orange County | — | — |
| Abba Communications | Abba Communications | — | (909) 944 2599 | Other | Ontario · San Bernardino County | — | — |
| Abba Construction | Bandegan Abraham | — | (858) 585 2020 | GC, remodel, ADU | Rancho Santa Fe · San Diego County | — | — |
| Abba Landscaping & Maintenance INC | Merino Arnulfo Cavero | — | (831) 596 1454 | Windows, patio, painters | Los Gatos · Santa Clara County | — | — |
| Abba Project Management | Alexander Stewart Buggy | — | (213) 940 0880 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Abba Stone And Tile INC | Armando Barajas | — | (415) 648 2501 | Other | San Pablo · Contra Costa County | — | — |
| Abbaca Construction | Jesse Clifton Hutchins | — | (707) 391 5645 | Other | Redwood Valley · Mendocino County | — | — |
| Abbad Construction And HVAC | Ghalari Hossein | — | (818) 636 8100 | HVAC | Encino · Los Angeles County | — | — |
| Abbas Haghshenas DBA Bay Plus Construction | Abbas Masjedhakimi Haghshenas | — | (408) 781 6660 | GC, remodel, ADU | Saratoga · Santa Clara County | — | — |