| Bingo Painting Company | Micheal Paul Bock | — | (530) 715 4701 | Windows, patio, painters | Oroville · Butte County | — | — |
| Birchard Construction INC | Adam Veale Birchard | — | (530) 864 5427 | GC, remodel, ADU | Durham · Butte County | — | — |
| Bird Drywall A Partnership X 5 | Edward Duane Bird | — | (530) 990 1505 | Other | Oroville · Butte County | — | — |
| Birkedal's Cabinetry | Birkedal's Cabinetry | — | (530) 519 3569 | Other | Chico · Butte County | — | — |
| Bisbee Concrete Coring | Johnathan Derek Bisbee | — | (503) 591 2783 | Other | Chico · Butte County | — | — |
| Bishop Plumbing | Bishop Plumbing | — | (530) 589 5100 | Other | Oroville · Butte County | — | — |
| Bjk Energy INC DBA Bjk Constructors | Brian James Kolu | — | (530) 518 8956 | GC, remodel, ADU | Chico · Butte County | — | — |
| Black Diamond Land Services | Bradley Allen Jeffries | — | (530) 624 9270 | Windows, patio, painters | Chico · Butte County | — | — |
| Black Rock Landscaping | Black Rock Landscaping | info@blackrocklandscaping.com | (530) 828 1977 | Windows, patio, painters | Chico · Butte County | — | — |
| Blaine White Floor Covering | Blaine White Floor Covering | — | (530) 521 9276 | Other | Chico · Butte County | — | — |
| Blessed Family Electric | Jason Gerald Burke | blessedfamilyelectric@gmail.com | (206) 483 4528 | Electricians | Paradise · Butte County | — | — |
| Blk Construction | John Paul Black | %20sales@blk-construction.com | (530) 433 9591 | GC, remodel, ADU | Magalia · Butte County | — | — |
| Blm Holdings INC | David Dwayne Nelson | — | (530) 520 1120 | Electricians | Chico · Butte County | — | — |
| Blue Chip Construction | Austin Donald Spang | — | (408) 775 0788 | GC, remodel, ADU | Chico · Butte County | — | — |
| Blue Collar Plumbing Operations LLC | Jared Frank Higby | — | (530) 216 3417 | Other | Gridley · Butte County | — | — |
| Blue Haven Pools | Scott Howard Finwall | — | (530) 899 8445 | Electricians | Chico · Butte County | — | — |
| Blue Moon Landscape INC | Jeremy Keith Harris | — | (530) 521 6587 | Windows, patio, painters | Chico · Butte County | — | — |
| Blue Oak Landscaping LLC | Benjamin Douglas Silverman | — | (530) 518 7248 | Windows, patio, painters | Chico · Butte County | — | — |
| Blumert Painting | Diane Elizabeth Blumert | — | (530) 872 4854 | Windows, patio, painters | Paradise · Butte County | — | — |
| Bob Hammett Painting | Bob Hammett Painting | — | (916) 434 1087 | Windows, patio, painters | Oroville · Butte County | — | — |
| Bob I Becker | Bob I Becker | — | (530) 410 0681 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Bob Stidham Construction | Bobby Glen Stidham | — | (530) 864 3483 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bob's Air Repair | Bob's Air Repair | — | (530) 345 9800 | HVAC | Chico · Butte County | — | — |
| Bob's Concrete Pumping INC | Jerry Henry Henderson | — | (530) 891 5055 | Other | Durham · Butte County | — | — |
| Bob's Plumbing Co | Robert Sturges Jr Francis | — | (530) 892 1231 | Other | Chico · Butte County | — | — |
| Bobby E Alexander General Contractor | Bobby E Alexander General Contractor | — | (818) 248 6746 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bobkat Builders INC | Brooke Paul Shelton | — | (530) 324 5213 | GC, remodel, ADU | Chico · Butte County | — | — |
| Bobs Flooring | Bobs Flooring | — | (530) 354 1969 | Other | Chico · Butte County | — | — |
| Boche Brothers Landscaping | Alex Stephen Bolt | — | (530) 208 5251 | Windows, patio, painters | Oroville · Butte County | — | — |
| Boe Roofing | Robert Henry Boe | — | (530) 514 7454 | Other roofers | Chico · Butte County | — | — |
| Boeger Development Services | Stephen Andrew Boeger | — | (530) 682 9274 | Other | Oroville · Butte County | — | — |
| Bolen Plastering INC | Joseph Matthew Bolen | — | (530) 876 1534 | Other | Paradise · Butte County | — | — |
| Boles Welding | Boles Welding | — | (530) 209 4161 | Other | Paradise · Butte County | — | — |
| Bolt Construction | David Dwane Bolt | — | (530) 990 5938 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Bonnie's Gardens | Bonnie's Gardens | — | (530) 720 9194 | Windows, patio, painters | Chico · Butte County | — | — |
| Bowen Pools And Renovations INC | Robert Milton Bowen | — | (530) 345 2503 | Pool | Chico · Butte County | — | — |
| Bowens Floor Covering | Bowens Floor Covering | — | (530) 693 1426 | Other | Oroville · Butte County | — | — |
| Boyds Landscaping | Boyds Landscaping | — | (530) 846 1474 | Windows, patio, painters | Gridley · Butte County | — | — |
| Bradford William Burks | Bradford William Burks | — | (530) 521 9763 | Electricians | Chico · Butte County | — | — |
| Bradley Custom Iron | Bradley Custom Iron | — | (530) 589 4535 | Other | Oroville · Butte County | — | — |