| Advanced Landscape & Hydroseeding | Kerry Scott Gephart | — | (909) 307 6056 | Windows, patio, painters | Mentone · San Bernardino County | — | — |
| Advanced Mechanical Air Conditioning & Heating | Michael John Colclasure | — | (760) 228 2934 | HVAC | Yucca Valley · San Bernardino County | — | — |
| Advanced Mission Glass Corporation | Cesar Hernandez | — | (909) 355 1969 | Windows, patio, painters | Fontana · San Bernardino County | — | — |
| Advanced Monitoring INC | Hany Ibrahim Dimitry | — | (909) 628 7773 | Electricians | Ontario · San Bernardino County | — | — |
| Advanced Pool Solutions INC | Juan Manuel Sanchez Miranda | info@advancedpoolsolutions.com | (909) 330 8213 | Pool | Rancho Cucamonga · San Bernardino County | — | — |
| Advanced Rebar Company LLC | Rodriguez Fernando Bertadillo | — | (323) 602 3427 | Other | Rialto · San Bernardino County | — | — |
| Advanced Refrigeration LLC | Joshua Ryan Gonzalez | — | (909) 927 7197 | HVAC | Chino Hills · San Bernardino County | — | — |
| Advanced Sweeping Services INC | Romulo Augusto Boggio | — | (909) 350 3952 | Other | Fontana · San Bernardino County | — | — |
| Advanced System Integrator | Advanced System Integrator | — | (909) 268 2361 | Other | Fontana · San Bernardino County | — | — |
| Advanced Systems Services INC | Tammy Leryse Wigington | — | (909) 949 9944 | HVAC | Upland · San Bernardino County | — | — |
| Advanced Technology INC | Alfonso Estrada | — | (626) 453 8955 | Electricians | Ontario · San Bernardino County | — | — |
| Advanced Vacuum Plumbing Systems | Advanced Vacuum Plumbing Systems | — | (909) 772 4322 | Other | Pinon Hills · San Bernardino County | — | — |
| Advanco Fire Protection INC | Rigoberto Bustamante Vazquez | — | (909) 460 2510 | Other | Ontario · San Bernardino County | — | — |
| Advantage Asphalt INC | Vincent John Portesi | contact@advantageasphalt.com | (909) 481 5623 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Advantage Backhoes | Advantage Backhoes | — | (909) 338 6302 | Other | Crestline · San Bernardino County | — | — |
| Advantage Builders INC | Danny Napolitano | — | (909) 982 6173 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Advantage Custom Pools | Advantage Custom Pools | info@advantagecustompools.com | (909) 355 7665 | Pool | Mentone · San Bernardino County | — | — |
| Advantage Directional Drilling INC | Ralph Anthony Torres | drillit@advantagedirection.com | (760) 948 7069 | Other | Victorville · San Bernardino County | — | — |
| Advantage Drywall Solutions INC | Ricardo Antonio Monterrubio Martinez | — | (909) 497 4915 | Other | Chino · San Bernardino County | — | — |
| Advantage Electric | Bryan Matthew Heveron | — | (760) 302 4000 | Electricians | Pioneertown · San Bernardino County | — | — |
| Advantage Garage Doors | Advantage Garage Doors | — | (909) 435 5821 | Other | Hesperia · San Bernardino County | — | — |
| Advantage Painting Solutions INC | Richard Edward Huezo | info@advantagepaintingsolutions.com | (951) 739 9204 | Windows, patio, painters | Chino · San Bernardino County | — | — |
| Advantage Siding & Decking | Carlos Francisco Nunez | — | (915) 226 6554 | Windows, patio, painters | Chino · San Bernardino County | — | — |
| Advantage Unlimited Paving INC | Vivian Eugenia Norman | — | (909) 401 4044 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Ae Painting | Ae Painting | elsaraga@gmail.com | (847) 262-7149 | Windows, patio, painters | Grand Terrace · San Bernardino County | — | — |
| Aea Remodeling | Aea Remodeling | — | (909) 435 6455 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Aegis Fire Protection Company INC | Christopher Joseph Hosey | — | (909) 991 5771 | Other | San Bernardino · San Bernardino County | — | — |
| Aero Fresh Industries INC | Timothy Robert Shelly | — | (909) 877 6991 | HVAC | Bloomington · San Bernardino County | — | — |
| Aesthetic Glass | Aesthetic Glass | — | (909) 486 4864 | Windows, patio, painters | Big Bear Lake · San Bernardino County | — | — |
| Affinity Flooring Of The Desert Corporation | David Emmitte Ledcke | — | (760) 369 3033 | Other | Yucca Valley · San Bernardino County | — | — |
| Affordable Comfort | Affordable Comfort | peter@affordable-comfort.com | (800) 774 0182 | HVAC | Fontana · San Bernardino County | — | — |
| Affordable Construction And Garage Door | Jack Douglas Iii Laymon | — | (760) 408 8012 | GC, remodel, ADU | Yucca Valley · San Bernardino County | — | — |
| Affordable Construction Services INC | Albertano Torres | tahoe96150@aol.com | (714) 552 7566 | GC, remodel, ADU | Chino · San Bernardino County | — | — |
| Affordable Electric | Posada Alex | — | (626) 374 4652 | Electricians | Fontana · San Bernardino County | — | — |
| Affordable Furniture Repair And Refinish LLC | Affordable Furniture Repair And Refinish LLC | — | (909) 453-0300 | Restoration | San Bernardino · San Bernardino County | — | — |
| Affordable Handyman | Affordable Handyman | — | (951) 295 7983 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Affordable Heating And Air Conditioning | Affordable Heating And Air Conditioning | — | (760) 367 9839 | HVAC | Twenty Nine Palms · San Bernardino County | — | — |
| Affordable Roofing & Rain Gutters INC | Jose Luis Gonzalez | — | (626) 216 9374 | Other roofers | Chino · San Bernardino County | — | — |
| Affordable Services | Carlos Castilla | — | (562) 694 2449 | Tree | Ontario · San Bernardino County | — | — |
| Affordable Sliding Door | Affordable Sliding Door | — | (760) 641 5764 | Windows, patio, painters | Yucca Valley · San Bernardino County | — | — |