| Black Castle Construction | Nathan Paul Mckenzie | — | (209) 985 3449 | Electricians | Ceres · Stanislaus County | — | — |
| Black Castle Construction INC | Nathan Joel Davenport | — | (209) 985 3449 | Electricians | Ceres · Stanislaus County | — | — |
| Black Fenix Plumbing Co | Elizarraras Alfonso | — | (209) 894 9611 | Other | Newman · Stanislaus County | — | — |
| Black Pearl Custom Finish | Black Pearl Custom Finish | — | (209) 535 2561 | Windows, patio, painters | Turlock · Stanislaus County | — | — |
| Black Pearl Mechanical | Cesar Placencia | — | (209) 678 8834 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Blackbird Const | Blackbird Const | — | (209) 602 0641 | GC, remodel, ADU | Oakdale · Stanislaus County | — | — |
| Blades General Contracting INC | Jason Carl Blades | — | (209) 632 6330 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Blake's True Colors Painting Company | Daniel Martin Blake | — | (415) 794 0408 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Blancarte's Painting | Blancarte's Painting | — | (209) 900 3815 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Blanco Construction LLC | Jesus Antonio Blanco | — | (510) 815 0667 | GC, remodel, ADU | Riverbank · Stanislaus County | — | — |
| Blind Pros | Blind Pros | — | (209) 581 4545 | Other | Waterford · Stanislaus County | — | — |
| Blue Diamond Kitchen And Bath | Mustafa Firat Yildirim | — | (209) 577 9000 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Blue Sky Roofing | Sanchez Reyes Francisco | — | (510) 695 9255 | Other roofers | Modesto · Stanislaus County | — | — |
| Blue Tech Water | Christopher Ayliffe Binfield | — | (855) 258 3832 | Other | Modesto · Stanislaus County | — | — |
| Blurock Pools | Blurock Pools | — | (209) 678 1363 | Pool | Waterford · Stanislaus County | — | — |
| Bnb Construction INC | Armando Banderas | — | (650) 305 1258 | GC, remodel, ADU | Oakdale · Stanislaus County | — | — |
| Bnh Mechanical LLC | Balkar Singh Hayer | — | (408) 373 8614 | HVAC | Modesto · Stanislaus County | — | — |
| Bnk's Investments INC | Mele Alatini Shavers | — | (209) 480 2821 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Bob Silva Painting | Bob Silva Painting | — | (209) 985 0517 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Bob's Pool & Spa Repair | Bob's Pool & Spa Repair | — | (209) 656 7408 | Pool | Denair · Stanislaus County | — | — |
| Bobby Yamaichi Remodeling INC | Robert Masashi Yamaichi | — | (209) 864 0464 | GC, remodel, ADU | Westley · Stanislaus County | — | — |
| Bobbyb LLC | Robert Paul Berndt | — | (209) 996 7935 | GC, remodel, ADU | Ceres · Stanislaus County | — | — |
| Bonfiglio Electric | Antonino Paul Bonfiglio | — | (209) 613 1952 | Electricians | Modesto · Stanislaus County | — | — |
| Boone Home Improvement | Donald Wayne Boone | boonehomeimprovement@gmail.com | (209) 531 5468 | GC, remodel, ADU | Oakdale · Stanislaus County | — | — |
| Borges Construction | Ronald David Borges | — | (209) 538 4230 | GC, remodel, ADU | Hughson · Stanislaus County | — | — |
| Bostrom Electric | Joseph Aage Bostrom | bostromelectric@gmail.com | (209) 777 2800 | Electricians | Turlock · Stanislaus County | — | — |
| Boutdy's Electrical And Appliance | Boutdy Victor Naophienkham | — | (209) 471 3029 | Electricians | Modesto · Stanislaus County | — | — |
| Bowman Construction | Tony Ryan Bowman | — | (209) 202 4763 | GC, remodel, ADU | Hughson · Stanislaus County | — | — |
| Boxwood Home Renovations | Nigel Jonathan Ambler | — | (209) 890 9182 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Bpf Construction INC | Brandon Richard Braun | info@bpfconstruction.com | (209) 613 6241 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Brambila Flooring | Brambila Flooring | — | (209) 860 2552 | Other | Ceres · Stanislaus County | — | — |
| Brambila Landscaping INC | Victor Hugo Brambila Flores | — | (650) 885 1127 | Windows, patio, painters | Patterson · Stanislaus County | — | — |
| Branchcon INC | Lane Gregory Branch | cole@branchcon.com | (209) 568 6218 | GC, remodel, ADU | Oakdale · Stanislaus County | — | — |
| Brantley Masonry | Brantley Masonry | — | (209) 202 1074 | Other | Oakdale · Stanislaus County | — | — |
| Bremco Of Northern California INC | Natalie Ann Zalinski | — | (925) 447 2700 | GC, remodel, ADU | Newman · Stanislaus County | — | — |
| Brent Roman | Brent Roman | — | (626) 722 7361 | Other | Patterson · Stanislaus County | — | — |
| Bret Turner Heating & Cooling | Bret Turner Heating & Cooling | — | (209) 595 5186 | HVAC | Modesto · Stanislaus County | — | — |
| Brian Daigre's Floor Covering | Brian Daigre's Floor Covering | — | (510) 755 5971 | Other | Modesto · Stanislaus County | — | — |
| Brian J Thompson | Brian J Thompson | — | (209) 595 0310 | GC, remodel, ADU | Oakdale · Stanislaus County | — | — |
| Brian Taylor Construction | Brian Dean Taylor | — | (209) 404 0337 | GC, remodel, ADU | Ceres · Stanislaus County | — | — |