| Bp Iron INC | Benjamin Jr Padilla | — | (714) 322 1922 | Other | Chino · San Bernardino County | — | — |
| Bprecise Plastering INC | Lopez Aldo Beltran | — | (760) 668 4379 | Other | Ontario · San Bernardino County | — | — |
| Brad Kaiser INC | Bradley John Kaiser | — | (760) 981 9574 | Tree | Hesperia · San Bernardino County | — | — |
| Brad Oddo Construction | Bradley Vincent Oddo | — | (909) 239 2025 | GC, remodel, ADU | Alta Loma · San Bernardino County | — | — |
| Brad Scott Drywall | Brad Scott Drywall | — | (909) 560 1455 | Other | Upland · San Bernardino County | — | — |
| Bradco Environmental | Tracey Leigh Bauder | — | (888) 447 4354 | Tree | Crestline · San Bernardino County | — | — |
| Bradley A Aubrey | Bradley A Aubrey | — | (760) 953 5066 | Other | Oak Hills · San Bernardino County | — | — |
| Bradley General Building INC | Brad Charles Nelson | — | (760) 217 8891 | HVAC | Helendale · San Bernardino County | — | — |
| Bradshaw Electric | Paul Steven Bradshaw | — | (951) 204 1596 | Electricians | Running Springs · San Bernardino County | — | — |
| Braeger Construction INC | Paul Alfred Braeger | — | (909) 621 4795 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Braley's Electric INC | James Gregory Braley | gbraley@braleyselectric.com | (909) 981 1121 | Electricians | Upland · San Bernardino County | — | — |
| Brandon Androshak Custom And Unique Homes | Brandon James Androshak | — | (760) 401 0830 | GC, remodel, ADU | Twentynine Palms · San Bernardino County | — | — |
| Brandon Fisher Construction | Brandon Anthony Fisher | — | (909) 630 9918 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| Brandon Moeller Fine Homes | Brandon Moeller Fine Homes | — | (951) 544 5965 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Brandon's Tree Service | Brandon's Tree Service | — | (909) 231-5824 | Tree | San Bernardino · San Bernardino County | — | — |
| Brandt Benson | Brandt Benson | — | (909) 915 8630 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Brannon's Technologies | Brannon's Technologies | — | (951) 316 3549 | Electricians | Yucaipa · San Bernardino County | — | — |
| Brapga Security Systems Inc. | Brapga Security Systems Inc. | — | (844) 446-9347 | Alarm and generators | San Bernardino · San Bernardino County | — | — |
| Brattain Windows INC | Justin Matthew Brattain | — | (760) 778 5300 | Windows, patio, painters | Joshua Tree · San Bernardino County | — | — |
| Bravo Builders | Nelsy Guadalupe Bravo Peral | — | (909) 855 9766 | GC, remodel, ADU | Bloomington · San Bernardino County | — | — |
| Bravo's Masonry | Miguel Angel Bravo Franco | — | (909) 714 3172 | Other | Rialto · San Bernardino County | — | — |
| Bray Interiors | Bray Interiors | — | (909) 730 9343 | Other | Yucaipa · San Bernardino County | — | — |
| Bre Electric INC | Paul Leroy Brehaut | — | (909) 645 8222 | Electricians | Rancho Cucamonga · San Bernardino County | — | — |
| Brea Hills Garage Door Service | Curtis Ray Marks | — | (714) 990 9900 | Other | Running Springs · San Bernardino County | — | — |
| Breeze HVAC | Breeze HVAC | — | (626) 217 3989 | HVAC | Chino · San Bernardino County | — | — |
| Brem Sheet Metal | Brem Sheet Metal | — | (909) 693 6886 | Other | Hesperia · San Bernardino County | — | — |
| Brenes Pro Building | Brenes Pro Building | — | (626) 485 9023 | GC, remodel, ADU | Chino Hills · San Bernardino County | — | — |
| Brett - A - Bee Electric | Brett Matthew Pattison | — | (909) 337 0985 | Electricians | Twin Peaks · San Bernardino County | — | — |
| Brett Bender Wall Covering INC | Brett Eric Bender | — | (909) 463 4222 | Windows, patio, painters | Rancho Cucamonga · San Bernardino County | — | — |
| Brett C Endter DBA Enterprize Contracting | Brett Campbell Endter | — | (909) 279 9917 | Other roofers | Fontana · San Bernardino County | — | — |
| Brett Carlson | Brett Carlson | — | (909) 223 7750 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Brewer Eric | Brewer Eric | — | (909) 464 1233 | Other | Chino Hills · San Bernardino County | — | — |
| Brian Dolman Construction | Brian Christopher Dolman | — | (909) 496 6142 | GC, remodel, ADU | Lake Arrowhead · San Bernardino County | — | — |
| Brian Felberg | Brian Felberg | — | (760) 686 3879 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |
| Brian G | Brian G | gargallocarnallabrianhermam@gmail.com | (909) 514 8754 | Electricians | Loma Linda · San Bernardino County | — | — |
| Brian Hook Construction INC | Brian Christopher Hook | — | (909) 269 2705 | GC, remodel, ADU | Highland · San Bernardino County | — | — |
| Brian L Clark | Brian L Clark | — | (909) 578 8806 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Brian Ortega | Brian Ortega | — | (909) 631 4148 | GC, remodel, ADU | Chino · San Bernardino County | — | — |
| Brian Sanden | Brian Sanden | — | (951) 440 1455 | Other | Big Bear Lake · San Bernardino County | — | — |
| Brian Yawching Kao | Brian Yawching Kao | — | (626) 347 3434 | HVAC | Ontario · San Bernardino County | — | — |