| Bongianni Landscaping | Bongianni Landscaping | — | (619) 889 2938 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Bongiorno Construction INC | Michael Anthony Bongiorno | — | (760) 877 1081 | GC, remodel, ADU | San Marcos · San Diego County | — | — |
| Bonilla Construction Sd INC | Victor Manuel Bonilla | — | (619) 207 2404 | GC, remodel, ADU | Chula Vista · San Diego County | — | — |
| Bonita Electric Corp | Samuel Valenzuela | — | (619) 852 4038 | Electricians | Vista · San Diego County | — | — |
| Bonita Flooring Installation | Bonita Flooring Installation | — | (619) 210 4435 | Other | Bonita · San Diego County | — | — |
| Bonita Home & Garden | Bonita Home & Garden | — | (619) 646 0992 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Bonita Landscape Maintenance | Bonita Landscape Maintenance | — | (619) 857 0302 | Windows, patio, painters | Spring Valley · San Diego County | — | — |
| Bonita Pipeline INC | Francisco Javier Marquez | — | (619) 434 9801 | GC, remodel, ADU | Chula Vista · San Diego County | — | — |
| Bonita Valley Landscape & Maint | Bonita Valley Landscape & Maint | — | (619) 204 7805 | GC, remodel, ADU | National City · San Diego County | — | — |
| Bonita Valley Plumbing INC | Kenneth P Luna | kenny@bonitavalleyplumbing.com | (619) 993 6679 | Other | Jamul · San Diego County | — | — |
| Bonsall Builders INC | Ronald Gary Arestad | — | (760) 594 1587 | GC, remodel, ADU | Bonsall · San Diego County | — | — |
| Bonsall Landscape And Lawn Care | Gomez Francisco Pozos | — | (760) 576 1616 | Windows, patio, painters | Bonsall · San Diego County | — | — |
| Bonsall Petroleum Construction Incorporated | Laurie Ann Perrault | — | (760) 631 0342 | GC, remodel, ADU | Bonsall · San Diego County | — | — |
| Bonsall Roofing | Bondy Fay Miller | impallari@gmail.com | (760) 215 4263 | Other roofers | Bonsall · San Diego County | — | — |
| Boonpay ' S Mobile Welding | Boonpay ' S Mobile Welding | — | (949) 933 2220 | Other | Fallbrook · San Diego County | — | — |
| Boonstra Construction INC | Joey Frederick Jr Boonstra | — | (760) 631 2131 | GC, remodel, ADU | Oceanside · San Diego County | — | — |
| Boosted HVAC Solutions | Kristopher Arturo Montano Perez | — | (619) 779 1990 | HVAC | Bonita · San Diego County | — | — |
| Booth Construction | Richard Dennis Booth | guy@infinitydesignbuild.com | (760) 743 4409 | HVAC | Escondido · San Diego County | — | — |
| Booth Construction | Kelsey Elizabeth Booth-Sims | — | (760) 743 4409 | HVAC | Escondido · San Diego County | — | — |
| Borbonio-rosas General Contractor INC | Sebastian Rey Gonzalez | — | (619) 627 3112 | GC, remodel, ADU | Chula Vista · San Diego County | — | — |
| Borchardt Scott Electric | Scott Richard Borchardt | — | (951) 239 6711 | Electricians | Fallbrook · San Diego County | — | — |
| Bordier's Home Improvements | Bordier's Home Improvements | — | (760) 941 3329 | GC, remodel, ADU | Oceanside · San Diego County | — | — |
| Borecomm Engineering INC | Marco Antonio Navarro | — | (619) 456 4959 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| Borg Construction | Matthew Leroy Borg | — | (619) 920 5485 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Boring Bros Construction Corp | Jorge Orozco | — | (949) 283 3418 | GC, remodel, ADU | National City · San Diego County | — | — |
| Borja | Samson Bonsol Jr Borja | — | (858) 432 4128 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Borja's Landscaping INC | Lorenzo Borja | — | (619) 381 7218 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Borneman Plastering INC | Johnny Willard Iii Borneman | info@bornemanplastering.com | (619) 440 2917 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| Borrego Electric | Denis George Hunsinger | buildzoomsupport@blockrenovation.com | (760) 767 3224 | Electricians | Borrego Springs · San Diego County | — | — |
| Borrego Electric | Borrego Adrian | contact@claycoelectric.org | (619) 817 5921 | Electricians | Spring Valley · San Diego County | — | — |
| Borrego Springs Construction | Araujo Enrique | info@borregocontractor.com | (760) 397 3825 | GC, remodel, ADU | Borrego Springs · San Diego County | — | — |
| Bosa Development Us Corporation | Louis Nasr | — | (619) 702 0760 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Bosco Construction Management | Guillermo Jr Camarena | — | (858) 518 6617 | GC, remodel, ADU | Bonita · San Diego County | — | — |
| Bosko Kresovich Jr | Bosko Kresovich Jr | — | (760) 644 2100 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Boss Construction & Design INC DBA Boss Construction Company | Alejandro Vargas | guy@infinitydesignbuild.com | (858) 254 8120 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Boss Drywall Sd | Razo Daniel | — | (619) 852 0365 | Windows, patio, painters | Chula Vista · San Diego County | — | — |
| Boss Electric Company INC | Prince Nakia Parker | — | (760) 798 6970 | Electricians | Escondido · San Diego County | — | — |
| Boswell Painting INC | Kenneth Lynn Boswell | — | (760) 519 1291 | Windows, patio, painters | Carlsbad · San Diego County | — | — |
| Bosworx 360 Services LLC DBA Bosworx 360 Design Build | Patrick Dock Boscarino | guy@infinitydesignbuild.com | (619) 966 7996 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| Botanically Crafted Landscapes | Botanically Crafted Landscapes | — | (619) 383 4396 | Windows, patio, painters | La Mesa · San Diego County | — | — |