| Abreg Painting INC | Vargas Abraham Castillo | — | (805) 891 5588 | Windows, patio, painters | Fillmore · Ventura County | — | — |
| Abreu & Sons | Abreu & Sons | — | (760) 594 7167 | GC, remodel, ADU | Valley Center · San Diego County | — | — |
| Abreu Building - Remodeling INC | Jordan Michael Abreu | guy@infinitydesignbuild.com | (619) 288 2995 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Abreu Construction | Thomas Cole Abreu | — | (916) 412 7065 | GC, remodel, ADU | Fair Oaks · Sacramento County | — | — |
| Abrew Repair & Construction | Kevin Michael Abrew | — | (925) 833 0128 | GC, remodel, ADU | Dublin · Alameda County | — | — |
| Abri Builders Co | Alvaro H Villatoro Perez | — | (424) 281 8365 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| Abril Roofing INC | Richard Steven Jr Abril | davidkumar@abrilroofing.com | (925) 228 0160 | Other roofers | Martinez · Contra Costa County | — | — |
| Abroad Cabling Solutions | Abroad Cabling Solutions | — | (805) 895 7315 | Other | Oak View · Ventura County | — | — |
| Abs Acoustics | Sakib Banjic | — | (858) 610 5407 | Other | San Diego · San Diego County | — | — |
| Abs Builders INC | Amy Marie Gwinnup | — | (530) 458 2299 | GC, remodel, ADU | Colusa · Colusa County | — | — |
| Abs Construction | Silvestre Mojica Covarrubias | — | (714) 931 2510 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Abs Custom Builders | Abs Custom Builders | alex@abscustombuilders.com | (415) 465 3684 | GC, remodel, ADU | Pacifica · San Mateo County | — | — |
| Abs Electric INC | Ali Barjasteh Shahkola | — | (818) 340 8500 | Electricians | Woodland Hills · Los Angeles County | — | — |
| Abs Facilities Services INC DBA Abs Building Maintenance | Robert Lewis Jr Hall | — | (408) 559 1928 | GC, remodel, ADU | Campbell · Santa Clara County | — | — |
| Abs Fence Master INC | Andrei Boldyrev | — | (916) 495 4072 | Other | Antelope · Sacramento County | — | — |
| Abs Fidelity Builder INC | Jack Lindsay Forest | — | (323) 300 6630 | Electricians | City Of Industry · Los Angeles County | — | — |
| Abs General Plumbing | Abs General Plumbing | — | (661) 755 1470 | Other | Newhall · Los Angeles County | — | — |
| Abs Home Works | Andrey Ivanovich Selebinka | — | (916) 606 9997 | GC, remodel, ADU | Citrus Heights · Sacramento County | — | — |
| Abs Plastering INC | Barrera Santiago Ambrocio | — | (650) 245 3482 | Other | San Mateo · San Mateo County | — | — |
| Abs Seamless Rain Gutters | Abs Seamless Rain Gutters | — | (760) 975 4033 | Other | Vista · San Diego County | — | — |
| Abs Window And Door INC | Giah Tagoi | — | (408) 499 2845 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| Absa Plumbing | Absa Plumbing | — | (510) 689 7172 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Absher Painting | Absher Painting | — | (559) 665 2702 | Windows, patio, painters | Chowchilla · Madera County | — | — |
| Abshire's Suspended Ceilings | Abshire's Suspended Ceilings | — | (559) 909 4849 | Other | Visalia · Tulare County | — | — |
| Absl Construction | Luis Maria Allende | — | (510) 727 0900 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Absolut Electric INC | Fox Yuriy | — | (916) 572 0851 | Electricians | West Sacramento · Yolo County | — | — |
| Absolute Abatement & Demolition | Absolute Abatement & Demolition | — | (562) 945 4700 | Other | Santa Fe Springs · Los Angeles County | — | — |
| Absolute Action Construction | Derek George Soeth | — | (415) 497 1272 | GC, remodel, ADU | Lower Lake · Lake County | — | — |
| Absolute Air | Absolute Air | mn@tritonair.net | (760) 731 7600 | HVAC | Fallbrook · San Diego County | — | — |
| Absolute Air | Absolute Air | — | (925) 228 8490 | HVAC | Martinez · Contra Costa County | — | — |
| Absolute Air Conditioning & Heating | Absolute Air Conditioning & Heating | absoluteairconditioningheating@gmail.com | (760) 318 5541 | HVAC | Palm Desert · Riverside County | — | — |
| Absolute Air Group LLC | Victor Paul Brian Rancour | — | (714) 942 5269 | HVAC | Westminster · Orange County | — | — |
| Absolute Air Solutions | Rudolph Christopher Delphino | — | (510) 901 7166 | HVAC | Hayward · Alameda County | — | — |
| Absolute Artistry Custom Cabinets | Absolute Artistry Custom Cabinets | — | (707) 799 3291 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| Absolute Av Design LLC | Daniel Aaron Craig | — | (619) 663 7478 | Other | San Diego · San Diego County | — | — |
| Absolute Best Care | Absolute Best Care | — | (925) 685 1119 | Windows, patio, painters | Concord · Contra Costa County | — | — |
| Absolute Best Concrete Coatings | Absolute Best Concrete Coatings | — | (909) 963 3585 | Other | Bloomington · San Bernardino County | — | — |
| Absolute Best Electric | Jim Allen | jim@absolutebestelectric.com | (747) 224-6907 | Electricians | Calabasas · Los Angeles County | — | — |
| Absolute Best Plumbing | Absolute Best Plumbing | — | (530) 513 0817 | Other | Chico · Butte County | — | — |
| Absolute Best Plumbing | Absolute Best Plumbing | — | (661) 202 5350 | Other | Lancaster · Los Angeles County | — | — |