| Avalon Air Conditioning And Heating | Avalon Air Conditioning And Heating | — | (951) 741 7858 | HVAC | Riverside · Riverside County | — | — |
| Avalon Audio/video And Smart Home LLC | Austin Allan Henry | — | (951) 500 4358 | Other | Temecula · Riverside County | — | — |
| Avalon Door Installations | Richard Carl Vincent | — | (951) 440 0447 | Other | Wildomar · Riverside County | — | — |
| Avalon Shutters INC | Douglas Noel Serbin | — | (909) 937 4934 | Other | Perris · Riverside County | — | — |
| Avalos Construction INC | Garcia Baldemar Avalos | — | (714) 597 2303 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| Avalos Floor Coverings INC | Jamie Lynn Avalos | — | (760) 520 3994 | Other | Cathedral City · Riverside County | — | — |
| Avance Fire Protection INC | Jorge Javier Vazquez Fernandez | — | (951) 403 5530 | Other | Menifee · Riverside County | — | — |
| Avant Garde Electric | Alfonso Iii Perez | — | (949) 842 3527 | Electricians | Murrieta · Riverside County | — | — |
| Avc Carpet & Flooring | Ontiveros Alejandro | — | (951) 847 5655 | Other | Corona · Riverside County | — | — |
| Avcope Landscape | Avcope Landscape | — | (951) 532 1291 | Windows, patio, painters | Mira Loma · Riverside County | — | — |
| Avel Construction INC | Lizarraga Enrique Valdez | avelconc@gmail.com | (951) 455 7497 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| Avelar Concrete | Hector Leon Bejarano | — | (951) 373 0928 | Other | San Jacinto · Riverside County | — | — |
| Avenue Electric INC | David Michael Bellehumeur | — | (951) 888 2500 | Electricians | Norco · Riverside County | — | — |
| Averra Contracting INC | Abanoub Nabil Fahmy | — | (714) 548 4123 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Avery Contracting | Austin Thomas Crawford | — | (951) 415 2899 | GC, remodel, ADU | Norco · Riverside County | — | — |
| Avery Enterprises INC | Kurtis James Avery | — | (951) 696 1935 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| Avery's Heating & Air | Avery's Heating & Air | — | (760) 880 6438 | HVAC | Desert Hot Springs · Riverside County | — | — |
| Avid Landscaping | Avid Landscaping | — | (760) 851 9809 | Windows, patio, painters | Thousand Palms · Riverside County | — | — |
| Avid Refrigeration INC | Manuel Rigorberto Lopez | — | (760) 481 4214 | HVAC | Desert Hot Springs · Riverside County | — | — |
| Avila Concrete | Avila Jorge Rolando | — | (951) 326 5066 | Other | Menifee · Riverside County | — | — |
| Avila Concrete Solutions | De Avila Josefina Cruz | — | (951) 591 1435 | Other | Murrieta · Riverside County | — | — |
| Avila Construction Services | Marco Antonio Avila Mena | — | (909) 273 9344 | GC, remodel, ADU | Beaumont · Riverside County | — | — |
| Avila Electric Construction | Jack Rangel Avila | — | (760) 251 5085 | Electricians | Desert Hot Springs · Riverside County | — | — |
| Avila Framing | Avila Framing | — | (619) 206 1887 | Other | Wildomar · Riverside County | — | — |
| Avilez Tree Service INC | Jay Estuardo Salazar Cruz | — | (951) 488 6808 | Tree | Riverside · Riverside County | — | — |
| Avina's Builder INC | Francisco Jaime Avina Lopez | — | (909) 809 7282 | GC, remodel, ADU | San Jacinto · Riverside County | — | — |
| Avir INC | Gordon Edward Speilberg | — | (760) 779 0881 | Electricians | Palm Desert · Riverside County | — | — |
| Avram Electric | Gheorghe Octavian Avram | — | (951) 934 3878 | Electricians | Jurupa Valley · Riverside County | — | — |
| Avss INC | Joshua Kandarian | — | (760) 565 1729 | Other | Palm Desert · Riverside County | — | — |
| Aw Flooring | Aw Flooring | — | (949) 682 6322 | Other | Murrieta · Riverside County | — | — |
| Awattofsolar INC | Jeff Allen Rinehart | tony@awattofsolar.com | (951) 476 4400 | Electricians | Lake Elsinore · Riverside County | — | — |
| Awesome Awnings | Jason Alan Rollins | — | (951) 440 0099 | Other | Norco · Riverside County | — | — |
| Awesome Possum Plumbing | Cassidy Phillippe Bernier | — | (951) 764 8805 | Other | Lake Elsinore · Riverside County | — | — |
| Awg Electric INC | Andrew Walter Gonzaga | — | (951) 902 9394 | Electricians | Perris · Riverside County | — | — |
| Ax Renovations | Ax Renovations | — | (760) 578 0786 | GC, remodel, ADU | Indio · Riverside County | — | — |
| Axis Electrical Contractors INC | Steven Lee Johnson | — | (951) 796 6136 | Electricians | Cherry Valley · Riverside County | — | — |
| Axl General Building Co | Cristian Axel Leyva Trujillo | — | (714) 322 8423 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Axp Plumbing Solutions | Timothy Alan Contreras | — | (951) 552 5227 | Other | Riverside · Riverside County | — | — |
| Ayala Concrete Design | Ayala Concrete Design | — | (951) 325 0995 | Other | Moreno Valley · Riverside County | — | — |
| Ayala Sewer Company | David Ascension Iii Ayala | — | (951) 999 7991 | Other | Nuevo · Riverside County | — | — |