| Bronco Plumbing Heating And Air | Phillip James Olmstead | — | (916) 675 1062 | HVAC | Roseville · Placer County | — | — |
| Brookline-belisle Electric Company | David Kenneth Belisle | — | (408) 309 3185 | Electricians | Auburn · Placer County | — | — |
| Brooks Electric | Paul Allen Brooks | — | (831) 212 9054 | Electricians | Lincoln · Placer County | — | — |
| Brooks Electrical Services INC | Paul Allen Brooks | — | (831) 212 9165 | Electricians | Lincoln · Placer County | — | — |
| Brooks Tile INC | Mathew Dean Brooks | — | (916) 721 1232 | Other | Newcastle · Placer County | — | — |
| Brosnan Electric | David Alan Brosnan | — | (650) 868 4097 | Electricians | Rocklin · Placer County | — | — |
| Brothers Construction Development LLC | Denys Tarnovetskyy | — | (916) 934 6155 | GC, remodel, ADU | Meadow Vista · Placer County | — | — |
| Brothers Electric And Material Supply | Jason Odie Brothers | — | (559) 788 7933 | Electricians | Lincoln · Placer County | — | — |
| Brothers Home Improvement INC | Rafael Vaca Cavanna | interested@domainmarket.com | (916) 791 9170 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Broton Builders LLC | Joseph Edward Rinaldi | — | (530) 497 4351 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Brower Mechanical Ca LLC | Eric Lyle Beardemphl | — | (916) 624 0808 | HVAC | Rocklin · Placer County | — | — |
| Brown Construction & Tree Work LLC | Zoller | — | (530) 863 8803 | GC, remodel, ADU | Foresthill · Placer County | — | — |
| Brown Mechanical | Brown Mechanical | info@brown-mechanical.ca | (916) 698 5620 | HVAC | Meadow Vista · Placer County | — | — |
| Brown Norman R | Brown Norman R | — | (916) 761 1817 | Other | Granite Bay · Placer County | — | — |
| Brown's Quality Electric INC | James Leonard Brown | — | (916) 600 2024 | Electricians | Loomis · Placer County | — | — |
| Browning Construction INC | Darrell Lee Browning | alexanderbrowning@comcast.net | (916) 224 4785 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Bruce W Mc Morrow | Bruce W Mc Morrow | — | (916) 768 1048 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Brunello Brothers Newera LLC | Paul Justin Brunello | — | (916) 743 3064 | Windows, patio, painters | Foresthill · Placer County | — | — |
| Brushbuster | Richard Joseph Stutz | — | (530) 885 6340 | Other | Penryn · Placer County | — | — |
| Budget Blinds Of Roseville / Rocklin | Gary Alan Decker | — | (916) 624 2249 | Other | Loomis · Placer County | — | — |
| Buds Tri - County Tree Services INC | Douglas Nelson Hardtke | — | (916) 223 2259 | Tree | Auburn · Placer County | — | — |
| Build Co | Mysin Nikolay | — | (808) 599 0247 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Build General Construction LLC | John Wei Ming Yeh | — | (916) 872 7688 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Build-it Construction | Sanchez Rasgado Yonathan | — | (916) 253 7171 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Builders Flooring & Design INC | Richard James Kludjian | — | (916) 780 6568 | Other | Granite Bay · Placer County | — | — |
| Building Concepts Construction Co | Michael Daniel Peterson | — | (916) 247 0323 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Building Energy & Power Solutions | Kisel Sergey | — | (916) 542 2994 | Electricians | Rocklin · Placer County | — | — |
| Buildit1 | Thomas Joseph Savoca | — | (916) 806 3038 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| Buildtech West | Robert Bruce Albertsen | — | (916) 272 0775 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| Buildyourdreams Exteriors | Mykhaylo Mulyar | — | (916) 995 7796 | GC, remodel, ADU | Loomis · Placer County | — | — |
| Built Environment INC | Steven Anthony Mueller | — | (916) 765 1842 | GC, remodel, ADU | Meadow Vista · Placer County | — | — |
| Built Pro INC | Adam Christopherd Boje | — | (916) 462 2233 | GC, remodel, ADU | Newcastle · Placer County | — | — |
| Built Right Mechanical INC | Anthony Orlando Indrieri | service@builtrightmechanical.com | (916) 606 6788 | HVAC | Lincoln · Placer County | — | — |
| Builtwell Construction | Momtaz Ramin | — | (916) 532 2080 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Bullet Construction | Frank Alfonso Orosco | — | (530) 237 7830 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Burch Landscaping | Burch Landscaping | brian@burchlandscaping.com | (916) 390-1718 | Windows, patio, painters | Roseville · Placer County | — | — |
| Burgess Building Contractors | Darrel Edward Burgess | — | (530) 401 3464 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Burgess Construction | Robert Eugene Burgess | — | (916) 865 8046 | GC, remodel, ADU | Rocklin · Placer County | — | — |
| Burks Construction | Sheldon James Burks | — | (559) 360 1218 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Burnett Tile And Stone | Marcus Vest Jr Burnett | — | (916) 792 8685 | Other | Loomis · Placer County | — | — |