| B L Construction | Richard Nam Banh | — | (918) 834-8020 | GC, remodel, ADU | Elk Grove · Sacramento County | — | — |
| B L Patio Covers | B L Patio Covers | — | (916) 807 2811 | Other | Citrus Heights · Sacramento County | — | — |
| B Line Construction LLC | David Tan | — | (916) 646 6391 | Electricians | Sacramento · Sacramento County | — | — |
| B M H Equipment | Alexander Jack | info@bmhequipment.com | (916) 922 8828 | Other | Sacramento · Sacramento County | — | — |
| B M Landscaping | B M Landscaping | — | (916) 688 9109 | Windows, patio, painters | Sacramento · Sacramento County | — | — |
| B M T Builders | B M T Builders | — | (916) 529 8449 | GC, remodel, ADU | Rancho Cordova · Sacramento County | — | — |
| B N B Fence Company | Albert Patrick Ramirez | — | (916) 512 5025 | Other | Sacramento · Sacramento County | — | — |
| B N P Remodeling INC | Patty Peng Cheong | — | (916) 387 1668 | GC, remodel, ADU | Sacramento · Sacramento County | — | — |
| B O Tile | B O Tile | — | (415) 446 8471 | Other | Sacramento · Sacramento County | — | — |
| B P C Painting INC | Gary Franklin Brasiel | — | (916) 312 2002 | GC, remodel, ADU | Elk Grove · Sacramento County | — | — |
| B P Interiors INC | Wanda Elizabeth Snellings | — | (916) 825 7346 | GC, remodel, ADU | Sacramento · Sacramento County | — | — |
| B P T Flooring | B P T Flooring | — | (805) 637 3048 | Other | Citrus Heights · Sacramento County | — | — |
| B R Acoustical INC | Bret William Rapozo | — | (916) 729 5940 | Other | Sacramento · Sacramento County | — | — |
| B R I Floors | B R I Floors | — | (916) 316 8972 | Other | Citrus Heights · Sacramento County | — | — |
| B Squared Construction INC | Brandon Joseph Kasper | — | (408) 966 5235 | GC, remodel, ADU | Fair Oaks · Sacramento County | — | — |
| B Squared Finish Carpentry | B Squared Finish Carpentry | — | (916) 534 2750 | Other | Citrus Heights · Sacramento County | — | — |
| B T Mancini Co INC | David Bruce Roddick | sales@btmancini.com | (916) 381 3660 | Other roofers | Sacramento · Sacramento County | — | — |
| B V Construction | Richard Bruce Vandover | — | (916) 267 1244 | GC, remodel, ADU | Sacramento · Sacramento County | — | — |
| B&e Concrete Pumping | Edgar Parra | — | (209) 329 4533 | Other | Galt · Sacramento County | — | — |
| B&h Network Solutions INC | Eugene Kuznetsov | — | (916) 300 1199 | Other | Citrus Heights · Sacramento County | — | — |
| B&m Civil LLC | Jonathan Elliott Brown | — | (916) 638 8626 | HVAC | Rancho Cordova · Sacramento County | — | — |
| B&m Mechanical Services LLC | Jonathan Elliott Brown | — | (916) 862 0095 | HVAC | Rancho Cordova · Sacramento County | — | — |
| B&s Painting INC | Asis Soto Bryan | — | (916) 868 9188 | Windows, patio, painters | Sacramento · Sacramento County | — | — |
| B-court Construction | Roberto Carlos Betancourt | — | (916) 576 9692 | GC, remodel, ADU | Rio Linda · Sacramento County | — | — |
| B12 Drywall INC | Bryan Carl Lebaron | — | (916) 635 3600 | Other | Rancho Cordova · Sacramento County | — | — |
| B4 Construction Group INC | Dmitrii Shalnev | — | (916) 633 4115 | GC, remodel, ADU | Carmichael · Sacramento County | — | — |
| Bac Development | Bac Development | — | (408) 595 0200 | GC, remodel, ADU | Folsom · Sacramento County | — | — |
| Baca Marble & Granite | Baca Marble & Granite | — | (916) 852 1034 | Other | Rancho Cordova · Sacramento County | — | — |
| Backflow Technologies INC | Daniel Norman Scott | — | (916) 739 0544 | Other | Rancho Cordova · Sacramento County | — | — |
| Backflow Test Today | Michael Affinito Harrell | mikeaharrell@gmail.com | (916) 794 5100 | Other | North Highlands · Sacramento County | — | — |
| Baez Custom Tile | Baez Custom Tile | — | (916) 346 3616 | Other | Sacramento · Sacramento County | — | — |
| Baf Plumbing INC | Steven Paul Jr Davis | — | (916) 820 2779 | Other | Elk Grove · Sacramento County | — | — |
| Bagatelos Glass Systems INC DBA Bagatelos Architectural Glass Sys | Christopher John Bagatelos | — | (916) 364 3600 | Windows, patio, painters | Sacramento · Sacramento County | — | — |
| Bailey Engineering & Electrical | Joshua Brandon Bailey | — | (916) 690 9580 | Electricians | Orangevale · Sacramento County | — | — |
| Bailey Tree Company INC | Jeremiah James Bailey | — | (916) 859 0888 | Tree | Rancho Cordova · Sacramento County | — | — |
| Bailey's Painting Service | Kevin Ray Bailey | — | (916) 601 8749 | Windows, patio, painters | Orangevale · Sacramento County | — | — |
| Baja Drywall | Baja Drywall | — | (916) 320 7174 | Other | Sacramento · Sacramento County | — | — |
| Baker Burglar & Fire Systems INC | Richard Theodore Jordan | — | (916) 635 5796 | Electricians | Rancho Cordova · Sacramento County | — | — |
| Baker's Custom Plumbing | Baker's Custom Plumbing | — | (916) 715 1623 | Other | Folsom · Sacramento County | — | — |
| Bakers Granite And Tile | Bakers Granite And Tile | — | (916) 524 2275 | Other | Elk Grove · Sacramento County | — | — |