| Bulky Boy's Landscapes INC | Jose Pedro Jr Andrade | — | (619) 820 8064 | Windows, patio, painters | El Cajon · San Diego County | — | — |
| Bull Fence INC | Joshua James Flud | bullfence@hotmail.com | (760) 801 4589 | Other | Poway · San Diego County | — | — |
| Bull's Eye Pest Control | Bull's Eye Pest Control | — | (858) 432-2325 | Pest, tile roofs | San Diego · San Diego County | — | — |
| Bulldog Audio And Video | Bulldog Audio And Video | — | (760) 613 7506 | Other | Carlsbad · San Diego County | — | — |
| Bulldog Development General Contractors | Michael Bryan Tice | — | (619) 261 3899 | GC, remodel, ADU | Cardiff By The Sea · San Diego County | — | — |
| Bulldog Plumbing | Bulldog Plumbing | — | (206) 712 3150 | Other | El Cajon · San Diego County | — | — |
| Bullet Bobcat | Bullet Bobcat | — | (619) 572 6379 | Other | Ramona · San Diego County | — | — |
| Bullet Concrete Pumping INC | Maria Guadalupe Leon | bulletpumping@yahoo.com | (619) 250 0830 | Other | Bonita · San Diego County | — | — |
| Bullet Excavation | Robert Ponce Jr Hernandez | — | (760) 216 3762 | Pool | Oceanside · San Diego County | — | — |
| Bullock Construction | Gaynor Darwin Bullock | sales@bullock-construction.com | (760) 688 5098 | GC, remodel, ADU | Vista · San Diego County | — | — |
| Bulman Painting | Stephen William Bulman | — | (619) 565 7704 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Bumann Builders | Bumann Builders | — | (760) 300 8520 | GC, remodel, ADU | Cardiff · San Diego County | — | — |
| Bumblebee Construction | Ji Qin | — | (619) 988 5647 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Bundy Custom Designed Construction | Dillon Lee Bundy | aqremodeling2@gmail.com | (360) 770 2777 | GC, remodel, ADU | La Mesa · San Diego County | — | — |
| Burch Construction Company INC | Michael Edward Long | — | (760) 788 9370 | GC, remodel, ADU | Ramona · San Diego County | — | — |
| Burdette Electric | Ryan Alan Burdette | — | (619) 905 8510 | Electricians | Lakeside · San Diego County | — | — |
| Burdick Construction Company | Bruce Allen Burdick | — | (760) 432 0206 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Burdick Plumbing | Burdick Plumbing | — | (619) 997 2793 | Other | El Cajon · San Diego County | — | — |
| Burgener Builders & Associates | Eduard Jay Jr Burgener | — | (619) 251 8145 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Burger Construction And Property Services | John Edward Burger | — | (858) 755 1800 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Burgin Brothers Electric INC | Mark Kagayutan Burgin | — | (619) 402 7312 | Electricians | Santee · San Diego County | — | — |
| Burgio Drywall INC | Brian Douglas Burgio | — | (619) 708 2202 | Other | Lakeside · San Diego County | — | — |
| Burgio Landscape Services INC | Christopher Matthew Burgio | — | (619) 277 1399 | Windows, patio, painters | Alpine · San Diego County | — | — |
| Burke General Contracting Construction | Steven Perry Jr Burke | — | (619) 933 1290 | GC, remodel, ADU | Lakeside · San Diego County | — | — |
| Burke's Construction | Timothy Jay Burke | — | (760) 877 4113 | GC, remodel, ADU | Valley Center · San Diego County | — | — |
| Burkhart Construction | Christopher Michael Burkhart | — | (909) 851 9705 | GC, remodel, ADU | Fallbrook · San Diego County | — | — |
| Burman Electric | George Robert Rossman | info@burmanelectric.com | (619) 985 3142 | Electricians | El Cajon · San Diego County | — | — |
| Burner Sheet Metal LLC | David S Meienburg | gfinch@burnersheetmetal.com | (619) 938 9727 | GC, remodel, ADU | Lakeside · San Diego County | — | — |
| Burnett Construction | Blaine Michael Burnett | — | (619) 449 6740 | GC, remodel, ADU | Lakeside · San Diego County | — | — |
| Burnham Realty And Construction | Brian Lester Burnham | — | (949) 566 3776 | GC, remodel, ADU | Oceanside · San Diego County | — | — |
| Burnie Fireplace Services | Patrick Anthony Lopez | — | (858) 513 3915 | Other | Poway · San Diego County | — | — |
| Burns General Contracting | David Richard Burns | — | (760) 212 1776 | GC, remodel, ADU | Encinitas · San Diego County | — | — |
| Burrill Contractors INC | Cameron Fredrick Burrill | — | (760) 917 7885 | GC, remodel, ADU | Oceanside · San Diego County | — | — |
| Burris Electric | Burris Mark | buildzoomsupport@blockrenovation.com | (858) 399 0933 | Electricians | San Diego · San Diego County | — | — |
| Burtech Plumbing | Julie Johnston Burtech | — | (760) 634 2822 | Other | Vista · San Diego County | — | — |
| Burtek Energy LLC | Jay Earl Burden | impallari@gmail.com | (619) 372 5287 | HVAC | San Diego · San Diego County | — | — |
| Burton Construction & Consulting | Frank Edward Burton | — | (619) 218 6460 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| Burtzos Pool & Spa Services | Foti Andrew Burtzos | — | (760) 754 1256 | Pool | Oceanside · San Diego County | — | — |
| Busa Built | David Lee Norman | — | (760) 613 3233 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Busy Bees Locks & Keys INC | Jerry Michael Schaffer | — | (619) 733 0172 | Other | San Diego · San Diego County | — | — |