| A G Baggett & P J Weber DBA Canyon Construction | Arthur Guy Jr Baggett | — | (916) 747 1544 | Electricians | El Portal · Mariposa County | — | — |
| A G Brown Electric | Andrew George Brown | — | (310) 713 5942 | Electricians | Pacific Palisades · Los Angeles County | — | — |
| A G Builders | A G Builders | — | (619) 742 9245 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| A G Builders | A G Builders | — | (916) 709 7079 | GC, remodel, ADU | Sacramento · Sacramento County | — | — |
| A G Builders | A G Builders | — | (707) 332 2156 | GC, remodel, ADU | Santa Rosa · Sonoma County | — | — |
| A G C | A G C | — | (415) 722 7711 | Other | Daly City · San Mateo County | — | — |
| A G C Company | Antoniuk Rafal | — | (916) 225 9262 | GC, remodel, ADU | Sacramento · Sacramento County | — | — |
| A G C Custom Iron Gates | Galindo Ceciliano Alejandro | — | (760) 586 8881 | Other | Escondido · San Diego County | — | — |
| A G C I INC | Ruben Mario Arce | — | (415) 785 7977 | GC, remodel, ADU | Greenbrae · Marin County | — | — |
| A G C INC | Elizabeth Anne Guinnane | — | (408) 369 6305 | HVAC | Campbell · Santa Clara County | — | — |
| A G Concrete | A G Concrete | — | (213) 810 8649 | Other | Los Angeles · Los Angeles County | — | — |
| A G Construction | Guerra Alejandro | — | (626) 723 6417 | GC, remodel, ADU | La Puente · Los Angeles County | — | — |
| A G Construction | Gonzalez Farias Alejandro | — | (415) 532 4511 | GC, remodel, ADU | San Rafael · Marin County | — | — |
| A G Construction | Gociu Alexandru | — | (310) 200 0408 | GC, remodel, ADU | Fullerton · Orange County | — | — |
| A G Construction | Gutierrez Alfredo | — | (562) 547 5055 | GC, remodel, ADU | Long Beach · Los Angeles County | — | — |
| A G Construction | Gonzalez Alfredo | — | (310) 261 9157 | GC, remodel, ADU | Azusa · Los Angeles County | — | — |
| A G Construction | Amardeep Singh Litt | — | (916) 788 0569 | GC, remodel, ADU | Roseville · Placer County | — | — |
| A G Construction | Alex Ayala Garcia | — | (831) 902 5643 | GC, remodel, ADU | Hollister · San Benito County | — | — |
| A G Construction | Aaron Jason Grail | — | (707) 292 4097 | GC, remodel, ADU | Cotati · Sonoma County | — | — |
| A G Construction | Jonathan Silver | — | (310) 951 4312 | GC, remodel, ADU | Los Angeles · Los Angeles County | — | — |
| A G Construction | Jose Antonio Godinez | — | (510) 750 8234 | Other | Richmond · Contra Costa County | — | — |
| A G Construction | Antonio Z Gonzalez | — | (818) 581 7401 | GC, remodel, ADU | Panorama City · Los Angeles County | — | — |
| A G Construction | Ajit Singh Ghuman | — | (661) 396 9884 | GC, remodel, ADU | Bakersfield · Kern County | — | — |
| A G Construction Corp | Alvaro Cruz Garcia Ramirez | — | (818) 317 4945 | GC, remodel, ADU | Panorama City · Los Angeles County | — | — |
| A G Construction Inglelwood | Andres Marin Garcia | — | (310) 701 8509 | GC, remodel, ADU | Lennox · Los Angeles County | — | — |
| A G Contracting | Gonzales Adolph | — | (559) 859 1830 | GC, remodel, ADU | Selma · Fresno County | — | — |
| A G D Cabinetry | A G D Cabinetry | — | (805) 680 3606 | Other | Ventura · Ventura County | — | — |
| A G D Construction | Antonio Geraldo Davis | — | (415) 832 9304 | GC, remodel, ADU | San Francisco · San Francisco County | — | — |
| A G D Drywall | A G D Drywall | — | (916) 996 2713 | Other | Orangevale · Sacramento County | — | — |
| A G Drywall | A G Drywall | — | (813) 388-7563 | Other | Pacheco · Contra Costa County | — | — |
| A G Electric | Guerra Armando | — | (323) 309 4642 | Electricians | Los Angeles · Los Angeles County | — | — |
| A G Electric | Guadarrama Abel | — | (714) 805 1163 | Electricians | Santa Ana · Orange County | — | — |
| A G Electric Systems INC | Gomez Armando | — | (818) 572 6525 | Electricians | Woodland Hills · Los Angeles County | — | — |
| A G Electrical INC | Rey Arturo Galindo Fernandez | — | (510) 200 4972 | Electricians | San Jose · Santa Clara County | — | — |
| A G Electricals | A G Electricals | — | (818) 261 2746 | Electricians | Simi Valley · Ventura County | — | — |
| A G Engineering INC DBA Albert Gutierrez | Gutierrez Albert | — | (909) 944 8504 | Electricians | Rancho Cucamonga · San Bernardino County | — | — |
| A G England | A G England | — | (818) 652 3232 | GC, remodel, ADU | Newhall · Los Angeles County | — | — |
| A G Flooring | A G Flooring | — | (323) 952 0017 | Other | Moreno Valley · Riverside County | — | — |
| A G Flooring INC | Adolfo Alfonso Gomringer | — | (661) 476 8300 | Other | Azusa · Los Angeles County | — | — |
| A G G Concrete | Garcia Garcia Agustin | — | (818) 581 0538 | Other | Pacoima · Los Angeles County | — | — |