| Brownbridge Construction | Brian Clay Brownbridge | — | (909) 260 3600 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Browns Construction | Jeffrey Wayne Brown | — | (760) 694 0680 | GC, remodel, ADU | Phelan · San Bernardino County | — | — |
| Brs Restoration INC | John Fernando Brasil | — | (909) 884 8505 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Brucato Floor Covering | Anthony Joseph Brucato | — | (909) 239 1738 | Other | Rancho Cucamonga · San Bernardino County | — | — |
| Bruce A Ayres Landscape Company | Bruce Armand Ayres | — | (909) 464 2535 | Windows, patio, painters | Chino · San Bernardino County | — | — |
| Bruce Alan Howard | Bruce Alan Howard | — | (760) 912 4820 | GC, remodel, ADU | Pinon Hills · San Bernardino County | — | — |
| Bruce R Buchser | Bruce R Buchser | — | (909) 723 4136 | GC, remodel, ADU | Lake Arrowhead · San Bernardino County | — | — |
| Bruce Roofing California INC | Shelby Bruce Clonts | — | (909) 225 0024 | Other roofers | Rancho Cucamonga · San Bernardino County | — | — |
| Bruno Mancinelli | Bruno Mancinelli | — | (760) 964 6222 | GC, remodel, ADU | Rancho Cucamonga · San Bernardino County | — | — |
| Brush Bro Painting INC | Mario Alberto Aceves Luevano | — | (213) 200 8433 | Windows, patio, painters | Victorville · San Bernardino County | — | — |
| Brush N Roll Painting | Brush N Roll Painting | — | (909) 740 9057 | Windows, patio, painters | Ontario · San Bernardino County | — | — |
| Bryan Adam Walker | Bryan Adam Walker | — | (909) 645 1915 | GC, remodel, ADU | Redlands · San Bernardino County | — | — |
| Bryan Gott | Bryan Gott | bryan@bryangott.com | (909) 982 8951 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Bryant's Cabinet & Millwork | Bryant's Cabinet & Millwork | — | (909) 969 4369 | Other | Victorville · San Bernardino County | — | — |
| Bryce Adam Odom | Bryce Adam Odom | — | (909) 224 9767 | Other | Hesperia · San Bernardino County | — | — |
| Bryon Anderson Plumbing | Bryon Anderson Plumbing | — | (949) 795 1774 | Other | Alta Loma · San Bernardino County | — | — |
| Buchanan Construction | Kenneth Roy Buchanan | — | (909) 244 4711 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| Buck Construction & Remodeling | Joseph Patrick Buck | — | (951) 264 4197 | GC, remodel, ADU | Highland · San Bernardino County | — | — |
| Buck's Woodwork | Buck's Woodwork | — | (909) 268 2724 | Other | Chino · San Bernardino County | — | — |
| Budget Air Conditioning & Heating | Budget Air Conditioning & Heating | — | (951) 237 4011 | HVAC | Grand Terrace · San Bernardino County | — | — |
| Budget Construction LLC | Jae Kon Kim | — | (909) 767 1376 | GC, remodel, ADU | Fontana · San Bernardino County | — | — |
| Budget Electrical Contractors INC | Danny Earl Guy | — | (909) 381 2646 | Electricians | Redlands · San Bernardino County | — | — |
| Budget Paving INC | Ramon Martinez | dispatch@budgetpaving.com | (714) 580 7149 | GC, remodel, ADU | Rialto · San Bernardino County | — | — |
| Buena Vista Contractors | Alarcon Samuel Adame | — | (626) 409 4916 | GC, remodel, ADU | Ontario · San Bernardino County | — | — |
| Buena Vista Grading And Paving | Buena Vista Grading And Paving | — | (562) 412 0942 | Other | Chino Hills · San Bernardino County | — | — |
| Buenas Brothers Engineering INC | Javier Buenas | — | (323) 972 2087 | GC, remodel, ADU | Redlands · San Bernardino County | — | — |
| Bueno Construction Company | Ricardo Carranza Bueno | — | (760) 947 9107 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |
| Buff & Stuff | Buff & Stuff | — | (760) 403 1983 | GC, remodel, ADU | Apple Valley · San Bernardino County | — | — |
| Buggy Rogers Painting | Buggy Rogers Painting | — | (951) 235 4736 | Windows, patio, painters | Redlands · San Bernardino County | — | — |
| Build Pro 101 | Build Pro 101 | — | (909) 263 1316 | GC, remodel, ADU | Alta Loma · San Bernardino County | — | — |
| Build Right L A | Gregorio Patino | — | (310) 488 3946 | GC, remodel, ADU | Upland · San Bernardino County | — | — |
| Build Weiser Construction INC | George Angel Jr Ochoa | — | (909) 991 2700 | GC, remodel, ADU | Hesperia · San Bernardino County | — | — |
| Builder City Construction INC | Luis Roberto Silva Perez | — | (909) 242 4134 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Buildex Construction | Zaul Jr Aguilar | — | (951) 667 9761 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Building 5 Septic INC | Marco Antonio Flores | — | (760) 900 3323 | Other | Redlands · San Bernardino County | — | — |
| Building Block Construction | Kevin Todd Strickland | — | (951) 376 7822 | GC, remodel, ADU | San Bernardino · San Bernardino County | — | — |
| Building North Finish Carpentry INC | Lance Freddrick North | — | (909) 709 0036 | Other | Yucaipa · San Bernardino County | — | — |
| Building On The Rock | Building On The Rock | — | (760) 524 8035 | GC, remodel, ADU | Wrightwood · San Bernardino County | — | — |
| Building Vision LLC | Charles Edward Warfield | — | (909) 848 1745 | GC, remodel, ADU | Yucaipa · San Bernardino County | — | — |
| Buildreams Construction | Eduardo Gamaliel Rodriguez Gomez | — | (626) 367 5791 | GC, remodel, ADU | Victorville · San Bernardino County | — | — |