| Brennan for Senate
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| Breske for Senate
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| Brett Davis for State Assembly
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| Brewery Workers Local
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| Brian Krolicki for Lieutenant Governor (Out-of-state: NV)
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| Brian Morello for Congress
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| Brian Smith for Senate
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| Bricklayers & Allied Craftworkers
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| Bridgepoint Education Inc PAC
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| Bridgepoint Education Inc PAC (Federal)
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| Bridgeview Corp dba Timber Falls Adventure Park (Corporation)
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| Brightspeed aka Connect Holding (Corporation)
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| Brightstone Bridge (Corporation)
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| Bristol-Myers Squibb Co (Corporation)
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| Bristol-Myers Squibb Co PAC (Federal)
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| Brockton Firefighters Peoples Committee (Unregistered, Massachusetts)
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| Broderick for County Board (Local-Dane County)
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| Broderick for County Board (Local-Milwaukee County)
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| Brooks Consulting LLC (Corporation)
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| Brooks for Assembly
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