| Barrett Construction | Thomas Dennis Barrett | — | (530) 774 1173 | GC, remodel, ADU | Stirling City · Butte County | — | — |
| Barron Plastering | Barron Plastering | — | (530) 514 7113 | Other | Paradise · Butte County | — | — |
| Battenfield Construction INC | Dustin Ray Battenfield | — | (530) 321 5903 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bauman Electric Company | Richard Keith Bauman | — | (530) 680 6262 | Electricians | Chico · Butte County | — | — |
| Bay Area Designer Builders INC | Steven Crittenden Shirley | designerbuilder@gmail.com | (530) 399 0505 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bc Brown General Engineering INC | Brandon Christopher Brown | — | (530) 624 2094 | Other | Durham · Butte County | — | — |
| Bc Construction LLC | Uriah Ethan Bakke | — | (530) 864 4654 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bcm Construction Company INC | Scott Joseph January | bcm@bcmconstruction.com | (530) 342 1722 | Other roofers | Chico · Butte County | — | — |
| Beattie Fox Denney Const | Charles Richard Denney | — | (530) 518 5386 | GC, remodel, ADU | Chico · Butte County | — | — |
| Beglau Building | Beglau Building | — | (530) 990 1103 | GC, remodel, ADU | Magalia · Butte County | — | — |
| Bell Millworks INC | Sean Thomas Bell | bellmillworks@gmail.com | (858) 568 5164 | GC, remodel, ADU | Magalia · Butte County | — | — |
| Ben Walsh | Ben Walsh | — | (530) 682 4389 | GC, remodel, ADU | Chico · Butte County | — | — |
| Benchmark Building Maintenance | Chris David Griggs | — | (530) 893 3480 | GC, remodel, ADU | Chico · Butte County | — | — |
| Benjamin D Reed DBA Castle Builders | Castle Builders | — | (530) 624 3371 | GC, remodel, ADU | Chico · Butte County | — | — |
| Benjamin Spragge | Benjamin Spragge | — | (530) 433 9101 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bentz Construction | Owen Isaac Bentz | — | (530) 586 0287 | GC, remodel, ADU | Chico · Butte County | — | — |
| Berger Electric | Russell Alexander Berger | — | (530) 321 1635 | Electricians | Paradise · Butte County | — | — |
| Bergstrom Concrete | Bergstrom Concrete | — | (530) 864 2961 | Other | Chico · Butte County | — | — |
| Bess Electric INC | Grayson John Ratekin Bess | — | (530) 519 4253 | Electricians | Chico · Butte County | — | — |
| Best Built Const & Painting | Best Built Const & Painting | — | (530) 520 6776 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bestway Painters INC | Laura Lee Thompson | — | (530) 343 0430 | Windows, patio, painters | Chico · Butte County | — | — |
| Better Built Fence Company | William Walther Patterson | — | (530) 990 9620 | Other | Oroville · Butte County | — | — |
| Bidwell Builders | Bidwell Builders | — | (530) 228 9281 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bidwell Construction INC | Winifred Grace Gordon | contact_us@bidwellconstruction.com | (530) 534 4400 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Bidwell Outdoor Living And Landscapes LLC | Bernhard Blake Bowman | — | (530) 518 0879 | Windows, patio, painters | Chico · Butte County | — | — |
| Big D's Plumbing | Big D's Plumbing | — | (530) 589 1099 | Other | Oroville · Butte County | — | — |
| Big Red Electric | Guillermo Jr Fabela | — | (530) 713 8047 | Electricians | Gridley · Butte County | — | — |
| Big Tree Roofing | Nickolas Wayne Olsen | nickford0074@yahoo.com | (209) 810 3164 | Other roofers | Paradise · Butte County | — | — |
| Big Valley Divers INC | John Clinton Eggleston | bvdjohn@sunset.net | (530) 898 1110 | Other | Chico · Butte County | — | — |
| Big'n & Son Drilling INC | Gurminder Singh Sandher | bignsondrillingoffice@gmail.com | (530) 231-1030 | Other | Palermo · Butte County | — | — |
| Big-ham's General Construction | Joshua Christopher Bigham | — | (530) 514 0383 | GC, remodel, ADU | Magalia · Butte County | — | — |
| Bill Biggs Plumbing | Billie Jackson Allen Biggs | — | (530) 864 2204 | Other | Chico · Butte County | — | — |
| Bill G Donovan General Contractor | Bill G Donovan General Contractor | — | (530) 563 8054 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bill Leonard | Bill Leonard | — | (707) 954 0190 | Other | Oroville · Butte County | — | — |
| Bill Struve Jr | Bill Struve Jr | — | (530) 519 6799 | Other | Paradise · Butte County | — | — |
| Bill Webb Construction INC | Bill Stanley Webb | — | (530) 891 3351 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bill's Quality Fencing | Bill's Quality Fencing | — | (530) 403 3304 | Other | Oroville · Butte County | — | — |
| Bill's Roofing | Bill Eugene Graham | — | (530) 846 3981 | Other roofers | Gridley · Butte County | — | — |
| Billson Construction Company INC | Richard Howard Billson | — | (530) 343 2293 | GC, remodel, ADU | Chico · Butte County | — | — |
| Billy Lancaster Construction | Billy Andrew Lancaster | — | (530) 282 6570 | GC, remodel, ADU | Oroville · Butte County | — | — |