| Ameri Air Conditioning And Heating | Ameri Air Conditioning And Heating | — | (909) 854 7996 | HVAC | San Bernardino · San Bernardino County | — | — |
| Ameri-climate Heating & Air Conditioning | Ameri-climate Heating & Air Conditioning | — | (909) 738 8523 | HVAC | Yucaipa · San Bernardino County | — | — |
| Ameribuild | Johnny N Kaloshian | — | (909) 264 3155 | GC, remodel, ADU | Grand Terrace · San Bernardino County | — | — |
| America's 1st Roof Technician | Cornelio Perez | — | (909) 838 3040 | Other roofers | Yucaipa · San Bernardino County | — | — |
| America's Air Conditioning & Heating INC | James Calvin Ii Wesley Nunley | — | (909) 997 2474 | HVAC | Loma Linda · San Bernardino County | — | — |
| America's Best Builders | America's Best Builders | — | (951) 258 9207 | GC, remodel, ADU | Phelan · San Bernardino County | — | — |
| America's Climate Heating & Air Conditioning INC | Penaloza Oscar Reyes | — | (909) 582 9975 | HVAC | Chino Hills · San Bernardino County | — | — |
| America's Paint Dept | America's Paint Dept | micah@micahrich.com | (626) 485 1007 | Windows, patio, painters | Victorville · San Bernardino County | — | — |
| American All Phase Electric Corporation | Richard Robert Lee | — | (760) 559 5998 | Electricians | Apple Valley · San Bernardino County | — | — |
| American Beauty Construction Company | Christopher Robin Lewis | — | (760) 242 2126 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| American Blast INC | Juan Jose Alonso | — | (909) 562 9633 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| American Charging And Electrical Services | Justin David Nicolia | — | (909) 289 2144 | Electricians | Yucaipa · San Bernardino County | — | — |
| American Civil Construction | James Dean Knecht | — | (760) 508 2867 | Other | Helendale · San Bernardino County | — | — |
| American Contracting INC | Adrian Joseph Gurubel | — | (760) 586 2211 | GC, remodel, ADU | Pinon Hills · San Bernardino County | — | — |
| American Eagle Concrete | Juan Carlos Garcia | — | (909) 356 0145 | Other | Fontana · San Bernardino County | — | — |
| American Eagle Construction | Travis Martin | — | (951) 283 0730 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| American Eagle Electric INC | Camacho Gilberto Quintero | charles@americaneagleelectric.com | (909) 837 1966 | Electricians | Bloomington · San Bernardino County | — | — |
| American Electric Services | Jason Ray Gentry | — | (951) 259 9127 | Electricians | Phelan · San Bernardino County | — | — |
| American Federal Gates | Edgar Estevez | — | (626) 833 3425 | Other | Chino · San Bernardino County | — | — |
| American Fire Life Safety Solutions DBA Fire Alarm Services | Rogelio Salvador Razo | — | (818) 371 8883 | Electricians | Cucamonga · San Bernardino County | — | — |
| American Foodservice INC DBA Frontier Foodservice | Stephen Michael Ruck | — | (909) 894 8560 | Other | Redlands · San Bernardino County | — | — |
| American Force Private Security Inc. | American Force Private Security Inc. | americanforce51@gmail.com | (866) 304-2627 | Alarm and generators | San Bernardino · San Bernardino County | — | — |
| American General Builders | Quintero Christian Delgadillo | — | (909) 746 9806 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| American Glass Co | American Glass Co | — | (909) 889-3574 | Windows, patio, painters | San Bernardino · San Bernardino County | — | — |
| American Green Developers INC | Thomas Gordon Lotz | — | (760) 961 4447 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |
| American Heritage Construction Services | Joseph Matthew Negley | — | (909) 821 8506 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| American Jetting Services INC | Anthony Dwain Jones | — | (909) 947 2107 | Other | Ontario · San Bernardino County | — | — |
| American Landscape And Maintenance INC | Daniel Benjamin Stauffer | — | (909) 307 1674 | Windows, patio, painters | San Bernardino · San Bernardino County | — | — |
| American Lock & Key | American Lock & Key | — | (909) 227 5455 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| American Log Homes And Construction | William Anton Burtner | — | (909) 222 7872 | GC, remodel, ADU | Big Bear Lake · San Bernardino County | — | — |
| American Made Painting | American Made Painting | — | (909) 534 3439 | Windows, patio, painters | San Bernardino · San Bernardino County | — | — |
| American Made Plumbing INC | Atore | — | (657) 632 8881 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| American Modular Construction | Juan Carlos Valle | — | (951) 201 5252 | Other | San Bernardino · San Bernardino County | — | — |
| American Painting & Sandblasting | American Painting & Sandblasting | — | (951) 347 7716 | Windows, patio, painters | Colton · San Bernardino County | — | — |
| American Polytech Coating Systems INC | Gerardo Antonio Pence | — | (909) 899 8561 | Other roofers | Rancho Cucamonga · San Bernardino County | — | — |
| American Pride Construction | Michael James Robertson | — | (760) 985 2885 | GC, remodel, ADU | Hesperia · San Bernardino County | — | — |
| American Roof Tops INC | Wendy Lauren Smart | — | (909) 987 7897 | Other roofers | Alta Loma · San Bernardino County | — | — |
| American Roofing Repair | American Roofing Repair | — | (310) 362-9936 | Other roofers | San Bernardino · San Bernardino County | — | — |
| American Septic Services INC | Celeste Cuevas | — | (909) 888 5911 | Other | San Bernardino · San Bernardino County | — | — |
| American Sheetmetal Specialties INC | Robert Michael Adame | — | (909) 794 7010 | Other | Mentone · San Bernardino County | — | — |