| Bianchi Group Developers INC | Paul Joseph Iii Bianchi | paul@bianchi-tillettdevelopers.com | (916) 869 1471 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Bianchi-tillett Developers INC | Paul Joseph Iii Bianchi | — | (916) 869 1471 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Bianco Landscape Management | John Lawerence Iii Bianco | — | (916) 521 1314 | Windows, patio, painters | Roseville · Placer County | — | — |
| Bianco Tree Management | Phillip Andrew Johnson | — | (916) 705 3000 | Other | Roseville · Placer County | — | — |
| Big Blue Aerial | Jesse Randall Desens | — | (530) 581 7563 | Other | Tahoe City · Placer County | — | — |
| Big Blue Painting INC | Erick Barton Gramanz | — | (530) 583 4831 | Windows, patio, painters | Tahoe City · Placer County | — | — |
| Big Pine Electric INC | Michael Ralph Lepore | contact@bigpineelectric.com | (279) 675 9785 | Electricians | Roseville · Placer County | — | — |
| Big Tim's Flooring Installations | Big Tim's Flooring Installations | — | (916) 521 5483 | Other | Auburn · Placer County | — | — |
| Big Water Welding | Ian Scott Mason | — | (530) 581 2161 | Other | Tahoe City · Placer County | — | — |
| Bigelow Construction Craftsman Homes INC | Tanya Michelle Thayer | — | (530) 412 2904 | GC, remodel, ADU | Tahoe City · Placer County | — | — |
| Bill Margraf Const | Bill Margraf Const | — | (916) 765 9804 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Bill Saunders Construction | Billy Scott Saunders | — | (530) 210 6460 | GC, remodel, ADU | Colfax · Placer County | — | — |
| Bill Wilder Construction Co | Tyler Joseph Wilder | — | (925) 584 4958 | Windows, patio, painters | Rocklin · Placer County | — | — |
| Birdi HVAC | Birdi HVAC | — | (916) 953 9079 | HVAC | Roseville · Placer County | — | — |
| Bishoff Construction Services | Gregory William Bishoff | — | (530) 470 3148 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Bishoff Plumbing | Bishoff Plumbing | — | (530) 470 3539 | Other | Auburn · Placer County | — | — |
| Bishop Construction | Rusty Thomas Bishop | admin@bishopconstruction.com | (916) 216 5889 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Bison Contracting | Joseph Whitt Warix | — | (916) 397 9626 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Bitner Construction | Steven Daniel Bitner | — | (916) 765 6923 | GC, remodel, ADU | Loomis · Placer County | — | — |
| Black & Company | William Justin Iii Black | — | (916) 628 0999 | Windows, patio, painters | Rocklin · Placer County | — | — |
| Black Bear Pavers Concrete And Landscape | J D Scott Tousignant | — | (916) 258 5163 | Windows, patio, painters | Auburn · Placer County | — | — |
| Black Cat Construction | Daniel Laurence Wright | — | (916) 626 1106 | GC, remodel, ADU | Auburn · Placer County | — | — |
| Black Cat Landscapes | Black Cat Landscapes | — | (916) 626 1106 | Windows, patio, painters | Auburn · Placer County | — | — |
| Black Diamond Tile Works INC | Benjamin Kyrle Hankinson | info@blackdiamondtileworks.com | (530) 448 2340 | Other | Kings Beach · Placer County | — | — |
| Blackmon & Son | Robert Steven Blackmon | — | (530) 386 0339 | GC, remodel, ADU | Carnelian Bay · Placer County | — | — |
| Blackmun Land Management | Blackmun Land Management | — | (530) 637 9306 | GC, remodel, ADU | Colfax · Placer County | — | — |
| Blackrock Industries INC | Joshua Collin Westphal | — | (916) 368 6076 | Other | Rocklin · Placer County | — | — |
| Blackrock Masonry LLC | Jeremy Ryan Jaeger | — | (916) 923 3434 | Other | Roseville · Placer County | — | — |
| Blacktop Sealing And Striping INC | Thomas Jay Reeve | — | (530) 583 1919 | Other | Tahoe City · Placer County | — | — |
| Blake Hoffmann Wood Floors | Blake Hoffmann Wood Floors | — | (530) 305 6178 | Other | Carnelian Bay · Placer County | — | — |
| Blake Renovations | Blake Renovations | — | (530) 788 5518 | GC, remodel, ADU | Roseville · Placer County | — | — |
| Blakemore Construction Co | Bradley Craig Blakemore | — | (916) 784 7222 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| Blanchard Construction | Thomas Raymond Blanchard | info@blanchardconstruction.com | (916) 791 7127 | Other | Granite Bay · Placer County | — | — |
| Blanco Specialties INC | Philip James Blanco | — | (916) 786 7145 | GC, remodel, ADU | Granite Bay · Placer County | — | — |
| Blane's Window & Screen | Blane's Window & Screen | — | (916) 783 5999 | Windows, patio, painters | Rocklin · Placer County | — | — |
| Blaze Air | Blaze Air | — | (530) 906 8807 | HVAC | Auburn · Placer County | — | — |
| Blind Spot INC | Thomas Andrew Noll | — | (916) 773 7768 | Other | Rocklin · Placer County | — | — |
| Bloom Landscaping Co | Dustin Scott Colter | lawrencehess@bloom-landscaping.com | (916) 917 0410 | Windows, patio, painters | Rocklin · Placer County | — | — |
| Blossom Hill General Contracting | James J Rafferty | — | (916) 408 8693 | GC, remodel, ADU | Lincoln · Placer County | — | — |
| Blu Builders | Blu Builders | — | (916) 316 4797 | Electricians | Newcastle · Placer County | — | — |