| Blue Saw Construction And Plumbing | Winson Wah Lau | — | (415) 528 1928 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Boal Enterprises | Kristi Michelle Boal | — | (530) 999 8194 | Electricians | Grass Valley · Nevada County | — | — |
| Boas Construction Company | Gregory Alan Boas | boas@boasconstruction.com | (530) 412 2142 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Bob Corrigan Construction | Corrigan Robert | — | (928) 606 5009 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Bob's Discount Carpet INC | Kurt Michael Pinkham | — | (530) 272 2100 | Other | Grass Valley · Nevada County | — | — |
| Bobby Jones Concrete | Bobby Jones Concrete | — | (530) 272 7337 | Other | Grass Valley · Nevada County | — | — |
| Bocko Construction INC | Blake Hamlin Bockius | office@bockoconstruction.com | (530) 308 6815 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Bodie Wagner | Bodie Wagner | — | (530) 913 2951 | GC, remodel, ADU | North San Juan · Nevada County | — | — |
| Boger Construction | Orville Gene Boger | — | (530) 277 5311 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Bohnet And Son Electric | Donn Vernon Bohnet | — | (530) 277 4224 | Electricians | Grass Valley · Nevada County | — | — |
| Boltshauser Construction | Brady Scott Boltshauser | — | (530) 615 7644 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Bonanza Fence Company LLC | Joseph Eugene Hunnicutt | — | (530) 639 1111 | Other | Penn Valley · Nevada County | — | — |
| Bones Painting INC | Glenn Joseph Davis | — | (530) 412 1862 | Windows, patio, painters | Truckee · Nevada County | — | — |
| Borden Construction Gen Bldg Contractors | Michael Dennis Borden | — | (530) 587 3977 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Bowman Built | Bowman Built | — | (818) 669 5757 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Boxpower INC | Kevin Anthony Krulikowski | info@boxpower.io | (530) 802 5477 | Electricians | Grass Valley · Nevada County | — | — |
| Boyer Construction INC | Ryan Eugene Boyer | — | (760) 914 0098 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Brad Barcus Construction Company INC | William Bradley Barcus | — | (530) 488 3803 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Brad Schumann Builders | Brad Schumann Builders | — | (530) 613 8908 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Brandon Allen Flooring | Brandon Allen Flooring | — | (619) 227 0885 | Other | Nevada City · Nevada County | — | — |
| Bratt Construction | Tyler Douglas Bratt | — | (530) 386 1136 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Bratt Construction INC | Tyler Douglas Bratt | — | (530) 386 1136 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Bray Built INC | Michael Tyler Bray | — | (530) 401 5295 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Brent Soltis Construction | Brent David Soltis | — | (530) 557 0621 | GC, remodel, ADU | Cedar Ridge · Nevada County | — | — |
| Brett Green Construction | Brett Ross Green | — | (530) 277 0995 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Brett Johnson Roofing | Brett Dannan Johnson | brettbuilt@gmail.com | (530) 587 7113 | Other roofers | Truckee · Nevada County | — | — |
| Brewer Refrigeration Heating And Airconditioning INC | Robert K Jr Brewer | — | (530) 272 6351 | HVAC | Grass Valley · Nevada County | — | — |
| Brian Bookout | Brian Bookout | — | (530) 329 2464 | Electricians | Nevada City · Nevada County | — | — |
| Brian Milhous | Brian Milhous | — | (530) 277 3956 | GC, remodel, ADU | Nevada City · Nevada County | — | — |
| Brian S Puckett Electrical | Brian Steven Puckett | — | (530) 272 6241 | Electricians | Grass Valley · Nevada County | — | — |
| Brian Sarinova | Brian Sarinova | — | (831) 252 2939 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Brickner's Hardwood Flooring Company | Bryan Michael Brickner | — | (530) 315 1448 | Other | Grass Valley · Nevada County | — | — |
| Bright Electric LLC | Talon Cole Parker | — | (530) 913 9759 | Electricians | Grass Valley · Nevada County | — | — |
| Brimer Construction & Plumbing | Jamie Dean Brimer | — | (530) 587 0733 | GC, remodel, ADU | Truckee · Nevada County | — | — |
| Brimer Plumbing | Jamie Dean Brimer | — | (530) 575 6801 | Other | Grass Valley · Nevada County | — | — |
| Bringolf Building & Design | Bringolf Building & Design | — | (530) 913 2551 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Bringolf Construction | Bruce Noel Bringolf | — | (530) 913 7030 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Brodine Construction | Jon Anthony Brodine | — | (831) 888 6227 | GC, remodel, ADU | Grass Valley · Nevada County | — | — |
| Bron Fariss Flooring | Bron Fariss Flooring | — | (530) 277 4210 | Other | Cedar Ridge · Nevada County | — | — |
| Brooke Painting | Heath Benjamin Brooke | — | (530) 263 1460 | Windows, patio, painters | Grass Valley · Nevada County | — | — |