| Blake Construction | Blake Ryan Lander | — | (949) 795 2369 | GC, remodel, ADU | San Clemente · Orange County | — | — |
| Blake Construction | Adam Robert Blake | — | (949) 394 2422 | GC, remodel, ADU | Westminster · Orange County | — | — |
| Blake Enterprises DBA Disaster Kleenup Better Floors & Restoratio | Corinne Lynne| Blake Corinne Lynne Lindquist | — | (714) 524 8500 | GC, remodel, ADU | Placentia · Orange County | — | — |
| Blake Rielly | Blake Rielly | — | (949) 887 6232 | Other roofers | Costa Mesa · Orange County | — | — |
| Blake Services INC | Kay Elaine Blake | — | (714) 524 8503 | GC, remodel, ADU | Placentia · Orange County | — | — |
| Blake Sign Company INC | Daniel Brian Blake | — | (714) 891 5682 | Other | Stanton · Orange County | — | — |
| Blanco Company INC | Garcia Alfredo Blanco | — | (714) 420 0883 | GC, remodel, ADU | Orange · Orange County | — | — |
| Blanco Construction INC | Joel Blanco | — | (714) 697 4714 | Other | Buena Park · Orange County | — | — |
| Blanusa Electric | Paul Anthony Blanusa | paul@blanusaelectric.com | (714) 248 6160 | Electricians | Huntington Beach · Orange County | — | — |
| Blaze Construction | Kurt Joseph Blaiser | — | (562) 843 8339 | GC, remodel, ADU | La Habra · Orange County | — | — |
| Blazing Hammers | Blazing Hammers | — | (949) 499 2692 | GC, remodel, ADU | Laguna Beach · Orange County | — | — |
| Blc Painting Services | Blanca Leticia Becerra Cobian | — | (657) 238 7664 | Windows, patio, painters | Anaheim · Orange County | — | — |
| Bld Landscape INC | Stephan Edward Bollin | — | (909) 525 5856 | Windows, patio, painters | Yorba Linda · Orange County | — | — |
| Bleich Construction | George Louis Jr Bleich | — | (714) 293 4507 | GC, remodel, ADU | Westminster · Orange County | — | — |
| Bless Construction INC | Michael Gene Bless | — | (714) 273 7000 | GC, remodel, ADU | Newport Beach · Orange County | — | — |
| Bless Home Remodeling INC | Donald David Harris | — | (714) 653 4985 | Other roofers | Anaheim · Orange County | — | — |
| Blessed Construction LLC | Chinh C Pham | — | (714) 312 8881 | GC, remodel, ADU | Santa Ana · Orange County | — | — |
| Bleu J Kim | Bleu J Kim | — | (213) 220 4233 | GC, remodel, ADU | Fullerton · Orange County | — | — |
| Blinds & More | Blinds & More | — | (714) 310 1940 | Other | Brea · Orange County | — | — |
| Blinds & Style | Blinds & Style | — | (949) 946 8004 | Other | Aliso Viejo · Orange County | — | — |
| Blinn & Young INC | Tracy Lee Prairie | — | (949) 645 2244 | Other | Costa Mesa · Orange County | — | — |
| Blizzardframeless Shower Doors INC | Randall Alan| Blizzard Randy Alan Blizzard | — | (714) 290 1505 | Windows, patio, painters | Huntington Beach · Orange County | — | — |
| Bloom Design Landscape INC | Jose Antonio Ramirez Chavez | — | (714) 720 4622 | Windows, patio, painters | Santa Ana · Orange County | — | — |
| Blue Air HVAC | Blue Air HVAC | — | (949) 892 5092 | HVAC | Lake Forest · Orange County | — | — |
| Blue Balance Pool Service And Janitorial Service | Martin Alan Smith | — | (949) 614 8372 | Pool | Laguna Hills · Orange County | — | — |
| Blue Chip Pool Care LLC | Melissa Ann Contreras | — | (949) 292 4016 | Pool | Huntington Beach · Orange County | — | — |
| Blue Chip Pool Repairs | Blue Chip Pool Repairs | — | (949) 292 4016 | Pool | Huntington Beach · Orange County | — | — |
| Blue Coast Flooring | Blue Coast Flooring | — | (714) 307 2980 | Other | Anaheim · Orange County | — | — |
| Blue Coast Group | Hector Enrique Garcia | — | (949) 973 2437 | GC, remodel, ADU | San Clemente · Orange County | — | — |
| Blue Core Construction INC | Joseph Su Woon Eo | — | (909) 784 8145 | GC, remodel, ADU | Brea · Orange County | — | — |
| Blue Diamond Construction | Naderi Abdullah | — | (949) 413 1995 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Blue Flame HVAC | Blue Flame HVAC | — | (949) 302 4904 | HVAC | Costa Mesa · Orange County | — | — |
| Blue Haven | Blue Haven | — | (714) 450-7884 | Pool | Orange · Orange County | — | — |
| Blue Horizon Construction Services INC | Soha Mirzahosseinkashani | — | (949) 299 9850 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Blue Knight Construction | Deborah Karr Ronstadt | — | (949) 751 7159 | GC, remodel, ADU | San Clemente · Orange County | — | — |
| Blue Ladder Construction LLC | Emily Lynn Fahrenholz | — | (714) 614 3497 | GC, remodel, ADU | Irvine · Orange County | — | — |
| Blue Lagoon Pools INC | Brandon Lee Tipton | — | (814) 743 8877 | Pool | Huntington Beach · Orange County | — | — |
| Blue Line Construction | Chinarian Gregory | — | (714) 343 3122 | GC, remodel, ADU | Orange · Orange County | — | — |
| Blue Line INC Construction Cleaning | Villegas Jorge | — | (714) 813 6178 | Other | Lake Forest · Orange County | — | — |
| Blue Line Pools | Blue Line Pools | — | (714) 561 3120 | Pool | Santa Ana · Orange County | — | — |