| Blinded By The Light | Blinded By The Light | — | (805) 581 1314 | Other | Ventura · Ventura County | — | — |
| Blink | Blink | — | (888) 998-2546 | EV chargers | Ventura · Ventura County | — | — |
| Bliss Home Theaters And Automation INC | George Ventura Bliss | — | (818) 706 2794 | Other | Westlake Village · Ventura County | — | — |
| Blois Construction LLC | James Brian Blois | — | (805) 656 1432 | Other | Oxnard · Ventura County | — | — |
| Bludog Telecom INC | Christobal Migel Reyes | chris@bludogtelecom.com | (805) 647 3319 | Other | Camarillo · Ventura County | — | — |
| Blue Anchor Co LLC | Vincent Bruce Darley | — | (805) 915 8589 | Other roofers | Simi Valley · Ventura County | — | — |
| Blue Anchor Pool Service | Lemus Rene | info@blueanchorpoolservice.com | (805) 990 0367 | Pool | Moorpark · Ventura County | — | — |
| Blue Diamond Pool Service | Brian Gallagher Sheppard | — | (805) 896 6803 | Pool | Newbury Park · Ventura County | — | — |
| Blue Heron | Blue Heron | — | (310) 701 2228 | Windows, patio, painters | Ojai · Ventura County | — | — |
| Blue Line Pool Services | Lemus Otilio | — | (805) 750 1381 | Pool | Moorpark · Ventura County | — | — |
| Blue Pacific Pool & Spa Maintenance & Repairs | Eric Travis Hooker | — | (805) 367 6508 | Pool | Newbury Park · Ventura County | — | — |
| Blue Ribbon Acoustics | Blue Ribbon Acoustics | — | (805) 358 6681 | GC, remodel, ADU | Westlake Village · Ventura County | — | — |
| Blue Skies Builders | Blue Skies Builders | — | (805) 405 1572 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| Blue Sky Custom Construction | German Lopez Mendoza | — | (805) 844 9287 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| Blue Square Construction | Michael Gregory Katzoff | mike@bluesquareconstruction.com | (818) 581 1540 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Blue Star Tile & Stone Co | Michael Allen Shapiro | — | (805) 905 9949 | Other | Camarillo · Ventura County | — | — |
| Bluewater Painting Company INC | Steven David Chesney | — | (805) 625 1734 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Blvd Plastering & Drywall | Christian Alejandro Baez | — | (805) 340 2073 | Other | Ventura · Ventura County | — | — |
| Bm Concrete | Bm Concrete | — | (805) 509 7798 | Other | Oxnard · Ventura County | — | — |
| Bob Loft The Tree Trimmer | Robert Ernest Loft | — | (805) 499 9107 | Tree | Thousand Oaks · Ventura County | — | — |
| Bob Mc Casland Fence Installation | Bob Mc Casland Fence Installation | — | (805) 320 4423 | Other | Camarillo · Ventura County | — | — |
| Bob Patterson | Bob Patterson | — | (805) 750 8596 | Windows, patio, painters | Simi Valley · Ventura County | — | — |
| Bob Roberts | Bob Roberts | — | (805) 498 3000 | Other | Thousand Oaks · Ventura County | — | — |
| Bob The Builder INC | Robert James Pimley | — | (805) 990 8400 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Bob's Fence Company | Robert Danford Ii Ghen | — | (805) 983 3346 | Other | Ojai · Ventura County | — | — |
| Bobby J Mc Lain Const | Bobby J Mc Lain Const | — | (805) 340 9413 | GC, remodel, ADU | Fillmore · Ventura County | — | — |
| Bodenhamer Bilt Construction INC | Ronald James Bodenhamer | — | (805) 231 2998 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Bold Framing | Bold Framing | info@bold-framing.com | (805) 814 6272 | Other | Ventura · Ventura County | — | — |
| Bold Plumbing INC | Trever Cole Seybold | — | (805) 795 2886 | Other | Simi Valley · Ventura County | — | — |
| Bomar Elevator Services INC | Anthony Francis Marcione | — | (818) 430 3992 | Other | Westlake Village · Ventura County | — | — |
| Bonny Builders Group INC | Lorenzo Gomez | — | (805) 816 1896 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Borchard Construction INC | Scott Burgess Borchard | — | (805) 754 7893 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| Bosson Co | James Christian Bosson | — | (805) 501 7950 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Botello Stone INC | Luis Rafael Botello | — | (805) 705 5642 | Other | Ventura · Ventura County | — | — |
| Bouchez Construction | Timothy Alan Bouchez | — | (805) 529 4060 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| Bowman Electric & Power INC | Jason John Bowman | — | (805) 624 9258 | Electricians | Simi Valley · Ventura County | — | — |
| Box Worx INC | William Patrick Mckenna | — | (805) 377 5453 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Boyd Air Systems | Boyd Air Systems | — | (805) 791 1331 | HVAC | Moorpark · Ventura County | — | — |
| Boyd And Associates | Steven Douglas Driscoll | — | (805) 650 3267 | Electricians | Ventura · Ventura County | — | — |
| Br Garage Doors And Gates | Br Garage Doors And Gates | — | (818) 422 8908 | Other | Thousand Oaks · Ventura County | — | — |