| Bat Systems Incorporated | Robert Levy | — | (562) 991 4823 | GC, remodel, ADU | Menifee · Riverside County | — | — |
| Bath Planet Inland Empire | Mitchell Lee Glover | — | (951) 506 0807 | GC, remodel, ADU | Wildomar · Riverside County | — | — |
| Bathing Solutions INC | Darren Marshall Sweet | — | (866) 292 5546 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Battey Construction Services | Codey James Battey | — | (951) 303 7045 | Other | Menifee · Riverside County | — | — |
| Battista Floor Covering LLC | Bryan Anthony Battista | — | (619) 793 7945 | Other | Wildomar · Riverside County | — | — |
| Baum Construction | Braydon Baum Barry | — | (619) 786 0249 | GC, remodel, ADU | Canyon Lake · Riverside County | — | — |
| Bautista Construction | Gilmar Eliud Bautista | admin@bautista-construction.com | (951) 805 5850 | GC, remodel, ADU | Wildomar · Riverside County | — | — |
| Baxter Electrical Contractors INC | David Samuel Baxter | — | (951) 461 0030 | Electricians | Temecula · Riverside County | — | — |
| Bay - Citi Plumbing And Rooter Service | Gerard Bernard Gorlero | — | (310) 897 2198 | Other | Blythe · Riverside County | — | — |
| Bay Water Pool & Spa's | Bay Water Pool & Spa's | — | (951) 278 2044 | Windows, patio, painters | Perris · Riverside County | — | — |
| Bayless Construction & Restoration | Carrie Leann Bayless | — | (909) 225 0482 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| Baymar Co | Bryan Gregory Vargas | — | (951) 901 3014 | Pool | Corona · Riverside County | — | — |
| Bazua Roofing | Bazua Alfredo | — | (760) 776 7663 | Other roofers | Mecca · Riverside County | — | — |
| Bb & L INC | Robert Charles Janelle | — | (760) 343 1365 | Other | La Quinta · Riverside County | — | — |
| Bb Electric | Billingsley Bruce | — | (951) 224 7529 | Electricians | Riverside · Riverside County | — | — |
| Bbi Construction | William Charles Beagle | bids@bbiconstruction.com | (951) 313 4274 | GC, remodel, ADU | Idyllwild · Riverside County | — | — |
| Bbsi Systems Integration | Bbsi Systems Integration | — | (951) 830 2108 | Electricians | Riverside · Riverside County | — | — |
| Bc Construction And Consulting INC | Michael Vito Cusenza | — | (760) 831 3332 | GC, remodel, ADU | Cathedral City · Riverside County | — | — |
| Bcc Remediation LLC | Dawson Raymond Scot Souden | — | (951) 847 4896 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Bcp Coatings | Christopher John Pennington | — | (951) 226 6597 | Windows, patio, painters | Lake Elsinore · Riverside County | — | — |
| Bcrr LLC | Christopher Mehran Reihanifam | — | (949) 331 3096 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Bd Renovations INC | Brian Christopher Davis | — | (916) 529 3110 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Bds INC | Paul Michael Bakkers | — | (714) 404 5398 | Other | Riverside · Riverside County | — | — |
| Be Honest Construction Clean Up | Daniel Brian Yanez | — | (760) 989 2789 | Other | La Quinta · Riverside County | — | — |
| Be Tru Construction | Eduardo Benitez | — | (619) 370 6168 | GC, remodel, ADU | Wildomar · Riverside County | — | — |
| Beach City Construction | Zambrano Robert | — | (909) 841 2328 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Beach City Stairs | Kevin David Label | — | (714) 721 6075 | Other | Temecula · Riverside County | — | — |
| Beach N Air-conditioning And Heating INC | Monte Lee Beach | — | (951) 845 6889 | HVAC | Beaumont · Riverside County | — | — |
| Beahm Concepts LLC | Micheal Bryant Beahm | — | (951) 532 1119 | Electricians | Menifee · Riverside County | — | — |
| Beam Management LLC | Billy Gene Parker | — | (951) 595 7266 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Bear Concrete | Bear Concrete | — | (909) 866 6566 | Other | Desert Hot Springs · Riverside County | — | — |
| Bear Creek Heating And Air Conditioning INC | Barry Lynn Dungan | — | (951) 600 2882 | HVAC | Murrieta · Riverside County | — | — |
| Bear Electric | Samuel Ioan Ursu | — | (951) 233 8943 | Electricians | Riverside · Riverside County | — | — |
| Bear Electric | John William Anderson | — | (951) 679 8760 | Electricians | Sun City · Riverside County | — | — |
| Bear Paw Construction INC | Jordan Thomas Gardner | — | (951) 490 2322 | GC, remodel, ADU | Menifee · Riverside County | — | — |
| Bear State Concrete Construction INC | Hugo Aguilar | — | (714) 244 8600 | Other | Norco · Riverside County | — | — |
| Bear State Systems INC | Timothy Michael Carrington | — | (919) 312 8591 | Electricians | Riverside · Riverside County | — | — |
| Bear State Water Heating | Bear State Water Heating | workorders@bearstatewaterheating.com | (951) 738 0012 | HVAC | Temecula · Riverside County | — | — |
| Bear State Water Heating LLC | Jose Luis Sevilla | workorders@bearstatewaterheating.com | (951) 738 0012 | HVAC | Temecula · Riverside County | — | — |
| Bear Valley Construction INC DBA Leon Construction | Alejandro Leon | — | (760) 701 9879 | GC, remodel, ADU | Indio · Riverside County | — | — |