| American Cowboys Construction INC | Carlos De Jesus Speranza | — | (714) 512 9631 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| American Craft Plumbing INC | Eric Vincent Johnnie Marquecho | — | (951) 250 4765 | Other | Jurupa Valley · Riverside County | — | — |
| American Custom Fencing | Daniela Araceli Jimenes | — | (626) 931 6365 | Other | Jurupa Valley · Riverside County | — | — |
| American Eagle Copper Repiping | American Eagle Copper Repiping | — | (877) 547 9001 | Other | Corona · Riverside County | — | — |
| American Empire Plumbing | Brian Aguayo | — | (951) 972 5725 | Other | Temecula · Riverside County | — | — |
| American Epoxy Works | American Epoxy Works | — | (619) 368 4352 | Other | Palm Desert · Riverside County | — | — |
| American General Contractor | American General Contractor | — | (951) 795 2171 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| American Grid Electric | Gary Fred Guzman | — | (714) 545 8800 | Electricians | Indio · Riverside County | — | — |
| American Highland Roofing | Ramirez Melina | — | (951) 463 1512 | Other roofers | Corona · Riverside County | — | — |
| American Home Remodeling INC | James Edwin Darling | info@americanhomeremodeling.com | (951) 520 0654 | GC, remodel, ADU | Corona · Riverside County | — | — |
| American Industry Glass LLC | Mark Brian Jonasson | bids@americanindustryglass.com | (951) 719 5006 | Windows, patio, painters | Winchester · Riverside County | — | — |
| American Innovation LLC | Daniel Guadarrama | — | (949) 991 8237 | HVAC | Corona · Riverside County | — | — |
| American Iron Rentals INC DBA American Iron Engineering | Travis Regan Russel Johnson | — | (951) 987 8228 | Other | Corona · Riverside County | — | — |
| American Lath & Plaster INC | Ryan Alexander Henderson | — | (951) 490 8121 | Other | Menifee · Riverside County | — | — |
| American Leak Detection INC | Jimmy Thomas Carter | — | (760) 320 9991 | Pool | Palm Desert · Riverside County | — | — |
| American Leak Locators & Plumbing INC | James Clifford Shreve | — | (951) 522 7513 | Other | Riverside · Riverside County | — | — |
| American Made Custom Millwork LLC | Mark Irland James Miller | — | (951) 298 9495 | Other | Temecula · Riverside County | — | — |
| American Masters Awnings | American Masters Awnings | — | (951) 818 4254 | Other | Lake Elsinore · Riverside County | — | — |
| American Paint Master | Steven Robert Padilla | — | (951) 312 7326 | Windows, patio, painters | Lake Elsinore · Riverside County | — | — |
| American Pipesmith Plumbing | Chad Michael Smith | — | (909) 648 5238 | Other | Menifee · Riverside County | — | — |
| American Plumbing & Heating | American Plumbing & Heating | — | (951) 360 3102 | HVAC | Riverside · Riverside County | — | — |
| American Plumbing & Leak Detection INC | Rovel Leyva | — | (951) 602 0309 | HVAC | Corona · Riverside County | — | — |
| American Plumbing Service | William Fredrick Llamas | — | (951) 750 0086 | Other | Menifee · Riverside County | — | — |
| American Plus INC | Rey Xochitiotzi | — | (424) 333 1522 | GC, remodel, ADU | Jurupa Valley · Riverside County | — | — |
| American Pride Concrete INC | John Leonard Robbins | — | (951) 679 0717 | Other | Menifee · Riverside County | — | — |
| American Probuild Corporation | Dennis Gallardo Villegas | — | (714) 660 7790 | GC, remodel, ADU | Banning · Riverside County | — | — |
| American Renovation INC | Tj M Afdasta | — | (949) 432 7000 | GC, remodel, ADU | Perris · Riverside County | — | — |
| American Renovation Network INC | Lydia Negrette | eben@eyebytes.com | (951) 501 8131 | GC, remodel, ADU | Murrieta · Riverside County | — | — |
| American Residential Plumbing | American Residential Plumbing | — | (714) 204 9609 | Other | Riverside · Riverside County | — | — |
| American Restoration & Construction Services INC | Christopher Vendel Borcsa | — | (951) 427 2642 | GC, remodel, ADU | Eastvale · Riverside County | — | — |
| American Restoration And Construction INC | Travis William Upchurch | — | (800) 651 4494 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| American Skilled Home Services LLC | Jesus Francisco Correa | — | (323) 213 1446 | GC, remodel, ADU | Coachella · Riverside County | — | — |
| American Tile Max | American Tile Max | — | (951) 675 2317 | Other | Perris · Riverside County | — | — |
| American United Drywall | David Ruiz | — | (424) 448 8357 | Other | Norco · Riverside County | — | — |
| American West Development | Emiliano Favian Vasquez | — | (951) 347 4058 | Other | Temecula · Riverside County | — | — |
| American West Electric & Construction INC | Garcia Phillip | — | (951) 285 9630 | GC, remodel, ADU | Canyon Lake · Riverside County | — | — |
| American Wet & Dry Engineering | American Wet & Dry Engineering | — | (951) 437 1401 | Other | Perris · Riverside County | — | — |
| American Wood Traditions | American Wood Traditions | — | (949) 466 1243 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| American Wrought Iron | American Wrought Iron | — | (760) 799 1351 | Other | Palm Desert · Riverside County | — | — |
| Americas Best Drywall LLC | Roger Alberto Najarro Ramirez | — | (951) 546 4483 | Other | Riverside · Riverside County | — | — |