- B&C Trust FundsBCTF1
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- Best Life and Health Insurance Company95604
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- BienvivirBSHS1
- Big 5 CorporationJ1738
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- Blackhawk Claims ServiceCB987
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- Block Vision IncorporatedBV001
- Blue Advantage72128
- Blue Care Network - Non Joint Venture Hospital Laboratory Network - Joint Venture Hospital Laboratory22770
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- BMW Manufacturing CorporationJ1258
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- Brown and Toland Medical Group94316
- Brownyard Group Incorporated (Arch Insurance)11150
- Brunswick CorporationJ1032
- BSI Companies25916
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- Buffets Incorporated Country BuffetJ1501
- Builders Group of MinnesotaJ1391
- Bunch and AssociatesJ1435
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- Burlington Coat Factory WarehouseJ1033
- Business Administrators & Consultants49984
- Businessmen's Assurance (Nebraska)61301
- Bywater12090