| Bay-valley Groundworks INC | Agustin Lopez Guerrero | — | (510) 355 5531 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Bayith Builder | Bayith Builder | — | (209) 480 1877 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Bayith Builders INC | Pedro Salvador Guerra | bayithbuilders@gmail.com | (209) 556 7371 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Baypoint Construction | Mozaffari Emil | — | (209) 204 1773 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Bayval Electric | Victor Eduardo Orozco Padilla | — | (415) 760 7675 | Electricians | Patterson · Stanislaus County | — | — |
| Be In Comfort | Be In Comfort | — | (209) 678 6746 | HVAC | Turlock · Stanislaus County | — | — |
| Beacon Heating & Air LLC | Jordan Robert Soto | — | (209) 505 5125 | HVAC | Modesto · Stanislaus County | — | — |
| Bear State General Contracting LLC | Evan Michael Plata | — | (209) 556 8855 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Beas Concrete | Beas Concrete | beasconcrete@gmail.com | (209) 765 0250 | Other | Modesto · Stanislaus County | — | — |
| Beekman's Custom Plumbing | Beekman's Custom Plumbing | — | (408) 778 1010 | Other | Newman · Stanislaus County | — | — |
| Beeler Industries INC | Michael Louie Beeler | — | (209) 545 0740 | GC, remodel, ADU | Salida · Stanislaus County | — | — |
| Bell's Flooring | Bell's Flooring | — | (209) 318 7795 | Other | Oakdale · Stanislaus County | — | — |
| Bellavista Lath & Plastering | Bellavista Lath & Plastering | — | (209) 840 2720 | Other | Riverbank · Stanislaus County | — | — |
| Bellwether Rack & Shelving LLC | Paul Jacques Van Liefde | — | (619) 371 0522 | Other | Modesto · Stanislaus County | — | — |
| Belmonte Construction | Ulises Belmonte | dennis@belmonteconstruction.com | (209) 214 6138 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Beltran Acoustics | Beltran Acoustics | beltransacoustics@gmail.com | (209) 303 5329 | Other | Turlock · Stanislaus County | — | — |
| Ben Jammin Landscape | Ben Jammin Landscape | — | (209) 599 1234 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Benedict Electric | Douglas Allen Benedict | — | (209) 480 3135 | Electricians | Modesto · Stanislaus County | — | — |
| Benjamin V Garcia | Benjamin V Garcia | — | (209) 324 0343 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Bentley Electric | Timothy Clarence Bentley | — | (415) 987 2063 | Electricians | Ceres · Stanislaus County | — | — |
| Bentlines Engineering Design | Derek Anthony Alvernaz | — | (503) 502 1703 | Other | Turlock · Stanislaus County | — | — |
| Bert M Jimenez | Bert M Jimenez | — | (209) 595 2967 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Best Bros Painting | Michael Aaron Starkweather | — | (209) 876 0018 | Windows, patio, painters | Turlock · Stanislaus County | — | — |
| Best Brothers Painting INC | Albertico Vargas-Pulido | — | (209) 448 9828 | Windows, patio, painters | Waterford · Stanislaus County | — | — |
| Best Cabinet | Best Cabinet | — | (209) 656 8835 | Other | Turlock · Stanislaus County | — | — |
| Best Electric | Best Electric | — | (209) 569-0120 | Electricians | Modesto · Stanislaus County | — | — |
| Best Key Service | Vernon Eugene Vyborney | — | (209) 527 0802 | Other | Modesto · Stanislaus County | — | — |
| Bettencourt Pump Service LLC | Scotty Matos Bettencourt | — | (209) 535 7946 | Other | Turlock · Stanislaus County | — | — |
| Better Call Jim | Better Call Jim | — | (209) 204 9382 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Better Home Pros LLC | Juan Daniel Maldonado Godinez | — | (209) 216 9200 | GC, remodel, ADU | Modesto · Stanislaus County | — | — |
| Bezaleel & Aholiab Construction Company INC | Juan Carlos Martinez Mendez | — | (209) 595 3588 | GC, remodel, ADU | Salida · Stanislaus County | — | — |
| Bg's Plumbing | Bg's Plumbing | — | (209) 505 5543 | Other | Oakdale · Stanislaus County | — | — |
| Bhatti Builders | Bhatti Builders | — | (209) 450 9547 | GC, remodel, ADU | Ceres · Stanislaus County | — | — |
| Bhatti Builders INC | Amandeep Singh | — | (209) 450 9547 | GC, remodel, ADU | Ceres · Stanislaus County | — | — |
| Big Dawg Electric | John Gerald Cox | — | (209) 505 1493 | Electricians | Turlock · Stanislaus County | — | — |
| Big Foot Carpets | Joseph Albert Guichard | — | (209) 632 0800 | Other | Turlock · Stanislaus County | — | — |
| Big Oak Construction | Terry Glen Dumolt | — | (209) 604 8810 | GC, remodel, ADU | La Grange · Stanislaus County | — | — |
| Big Time Painting Company | Carlos Alberto Barajas Garcia | interested@domainmarket.com | (209) 750 4481 | Windows, patio, painters | Modesto · Stanislaus County | — | — |
| Bigler Construction | Baron Timothy Bigler | — | (209) 606 1717 | GC, remodel, ADU | Turlock · Stanislaus County | — | — |
| Bird Proof Specialist | Bird Proof Specialist | bpsbirdman@gmail.com | (408) 656 6566 | Other | Modesto · Stanislaus County | — | — |