| Advanced Building And Remodeling INC | John Matthew Calderon | — | (310) 870 5000 | Electricians | Los Angeles · Los Angeles County | — | — |
| Advanced Building Concepts INC | Eric Joseph Holguin | — | (619) 315 9516 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Advanced Building Construction | Rafe Allen Palmer | — | (916) 320 6105 | GC, remodel, ADU | Grizzly Flats · El Dorado County | — | — |
| Advanced Building Contractor | Advanced Building Contractor | — | (916) 267 7978 | GC, remodel, ADU | Elk Grove · Sacramento County | — | — |
| Advanced Building Development & Construction INC | Christopher Jordan Chacon | — | (909) 599 2243 | GC, remodel, ADU | La Verne · Los Angeles County | — | — |
| Advanced Building Inspections | Advanced Building Inspections | — | (818) 883-9810 | Inspectors | Calabasas · Tehama County | — | — |
| Advanced Building Services INC | Jerome Victor Lenoir | — | (510) 763 6933 | GC, remodel, ADU | Oakland · Alameda County | — | — |
| Advanced Building Solutions | Advanced Building Solutions | — | (916) 716 1130 | HVAC | Citrus Heights · Sacramento County | — | — |
| Advanced Building Solutions INC | Seth Wellington Nobmann | — | (707) 206 4044 | GC, remodel, ADU | Petaluma · Sonoma County | — | — |
| Advanced Business Communications | Thomas Gordon Heidal | — | (916) 869 0968 | Electricians | Sacramento · Sacramento County | — | — |
| Advanced Business Management Solutions INC | Adam Geller | — | (310) 810 8210 | GC, remodel, ADU | Encino · Los Angeles County | — | — |
| Advanced Cabinet Repair INC | Gary Douglas Davider | — | (858) 349 1610 | GC, remodel, ADU | La Quinta · Riverside County | — | — |
| Advanced Cable & Communications INC | Stephen Hull Corcoran | — | (714) 435 1806 | Other | Huntington Beach · Orange County | — | — |
| Advanced Cable Solutions INC | Jasen Edward Smith | — | (818) 362 2200 | Electricians | Valencia · Los Angeles County | — | — |
| Advanced Cable Systems | Christoper Dato | — | (805) 687 1335 | Electricians | Santa Barbara · Santa Barbara County | — | — |
| Advanced Car Stereo Riverside(10555 Magnolia Ave Riverside 92505) | Advanced Car Stereo Riverside(10555 Magnolia Ave Riverside 92505) | — | (951) 393-1208 | Alarm and generators | Riverside · Riverside County | — | — |
| Advanced Centrifugal Systems INC | Robert Fisher | — | (805) 512 4935 | HVAC | Pasadena · Los Angeles County | — | — |
| Advanced Certified Welding | Advanced Certified Welding | — | (831) 210 1862 | Other | Salinas · Monterey County | — | — |
| Advanced Chemical Service INC | Jacob Weissberg | — | (800) 319 9227 | Other | Riverside · Riverside County | — | — |
| Advanced Chemical Transport LLC | Joseph Michael Williams | — | (408) 548 5050 | Other | San Jose · Santa Clara County | — | — |
| Advanced Cleanroom Microclean Corporation | Janet Renee Ford | — | (714) 751 1152 | Other | Santa Ana · Orange County | — | — |
| Advanced Cleanup Technologies INC | Tammy Nan Garcia | — | (877) 811 1389 | Other | Lomita · Los Angeles County | — | — |
| Advanced Climate Control Heating & Air Conditioning | Mojarro Noe | — | (661) 699 8572 | HVAC | Bakersfield · Kern County | — | — |
| Advanced Climate Technologies | Johnathan Eugene Payne | — | (714) 738 0180 | HVAC | Fullerton · Orange County | — | — |
| Advanced Com | Gary Scott Gass | sales@advancedcom.com | (408) 930 6704 | Other | San Jose · Santa Clara County | — | — |
| Advanced Combustion & Process Controls INC | Steven David Bopp | — | (661) 615 1193 | Electricians | Bakersfield · Kern County | — | — |
| Advanced Comfort Air Solutions LLC | Jeff Edwin Jury | — | (916) 879 6744 | HVAC | Sacramento · Sacramento County | — | — |
| Advanced Comfort Control INC | William Allen Harkness | office@advancedcomfortcontrol.com | (530) 254 6571 | HVAC | Susanville · Lassen County | — | — |
| Advanced Comfort Incorporated | Santo Tat Ming Mui | — | (626) 945 4223 | HVAC | Monterey Park · Los Angeles County | — | — |
| Advanced Comfort Mechanical | Advanced Comfort Mechanical | — | (909) 687 4714 | HVAC | Rancho Cucamonga · San Bernardino County | — | — |
| Advanced Commercial Doors INC | Wesley Allen Furr | — | (661) 255 9505 | Other | Stevenson Ranch · Los Angeles County | — | — |
| Advanced Communication And Technology | Advanced Communication And Technology | — | (310) 258 1750 | Other | Los Angeles · Los Angeles County | — | — |
| Advanced Communications Company | Charles Eugene Borders | — | (530) 893 3474 | Other | Chico · Butte County | — | — |
| Advanced Compliance | Advanced Compliance | interested@domainmarket.com | (562) 254 5250 | Electricians | Whittier · Los Angeles County | — | — |
| Advanced Compliance | Advanced Compliance | interested@domainmarket.com | (661) 706 4321 | Other | Bakersfield · Kern County | — | — |
| Advanced Computers & Graphics INC | Mike Vahe Keshishian | — | (818) 547 2275 | Other | Glendale · Los Angeles County | — | — |
| Advanced Comtech INC | Michael Anthony Mirolla | — | (818) 999 4194 | Other | North Hills · Los Angeles County | — | — |
| Advanced Concrete & Construction INC | Micah Henry Utter | — | (805) 238 7888 | GC, remodel, ADU | Templeton · San Luis Obispo County | — | — |
| Advanced Concrete Coatings | Advanced Concrete Coatings | — | (916) 400 1930 | Other | Sacramento · Sacramento County | — | — |
| Advanced Concrete Exteriors | Advanced Concrete Exteriors | sebastian@aldusleaf.org | (858) 344 8687 | Other | Escondido · San Diego County | — | — |