| BCBaldwin Contraction CO. | Lincoln | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BMBall Metal Beverage Container CORP | Torrance | CA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| BAB and B Enameling Incorporated | Huntington Beach | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| BIBarcel/cdt INC | Irvine | CA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| BCBarry Callebaut Usana LLC | American Canyon | CA | Food Manufacturing311320 | — | ◇ UNVERIFIED |
| BCBasf Construction Chemicals, INC. | Newark | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BCBasf CORP | Rancho Cucamonga | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| BCBasf CORP Colton | Colton | CA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| BRBas Recycling | Moreno Valley | CA | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| BDBatth Dehydrator LLC | Caruthers | CA | Food Manufacturing311423 | — | ◇ UNVERIFIED |
| BGBaxman Gravel CO | Fort Bragg | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BABay Area Circuits | Fremont | CA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| BEBay Equipment & Repair | Hayward | CA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| BSBay State Milling Company | Woodland | CA | Food Manufacturing311211 | — | ◇ UNVERIFIED |
| BBB & B Pallet Co, INC. | Compton | CA | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| BBB & B Pipe & Tool Company | Long Beach | CA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BCB C Doering | Costa Mesa | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BSBeach Side Recycling INC | Huntington Beach | CA | Paper Manufacturing322122 | — | ◇ UNVERIFIED |
| BMBeacon Management INC | Commerce | CA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| BVBear Valley Water District | Bear Valley | CA | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| BHBeauty & Health International INC | Garden Grove | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| BGBeaver General Machine | Santa Fe Springs | CA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| BCBeckman Coulter INC. | Fullerton | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| BCBeckman Coulter, INC. | Brea | CA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| BOBell-carter Olive CO. Wwtp | Corning | CA | Food Manufacturing311421 | — | ◇ UNVERIFIED |
| BABement's Autobody | Fresno | CA | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| BMBender Machine INC | Los Angeles | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BRBender Ready Mix INC | Santa Fe Springs | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BABeneficial Ag Services | Ontario | CA | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| BPBentley Prince St INC | La Puente | CA | Textile Product Mills314110 | — | ◇ UNVERIFIED |
| BPBentley Prince Street INC | La Puente | CA | Textile Product Mills314110 | — | ◇ UNVERIFIED |
| BRBerkeley Ready Mix Concrete | Berkeley | CA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BGBert-co Graphics, Bert-co Ind Dba | Los Angeles | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| BLBetaair LLC | City of Industry | CA | Plastics and Rubber Products Manufacturing326112 | — | ◇ UNVERIFIED |
| BFB F Goodrich Aerospace Humphrey Operation | San Diego | CA | Transportation Equipment Manufacturing336320 | — | ◇ UNVERIFIED |
| BHBfs Hughcamf | Hughson | CA | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| BSBf Suma Pharmaceuticals INC | San Gabriel | CA | Food Manufacturing311514 | — | ◇ UNVERIFIED |
| BGB & G House of Printing Incorporated | Gardena | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| BVBgm Ventures INC Dba Hy Tech Plating | San Carlos | CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| BHB & H Finishing | San Jose | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| BIBigbattery INC | Chatsworth | CA | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| BBBimbo Bakehouse LLC | Oxnard | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| BBBimbo Bakeries Company | Montebello | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| BBBimbo Bakeries Usa/oroweat | South San Francisco | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| BDBin Doctor | Salinas | CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| BLBiocell Laboratories | Compton | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| BLBiological Life INC | Simi Valley | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| BPBiomarin Pharmaceutical INC | Novato | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| BIBioneer INC | Alameda | CA | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
 Bio Rad Laboratories | Richmond | CA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
