- Ballard & Ballard Co.1
- Barjay Products, Inc.1
- Basic Food Materials, Inc. and Ray F. Beerend1
- Beatrice Foods Co.1
- Becker Pretzel Bakeries, Inc.1
- Belmont Canning Co.1
- Benjamin Ostroff1
- Benson Manufacturing Co.1
- Berlin Milling Co., Inc.1
- Bernau Processing Plant1
- Berrien County Cooperative Fruit Exchange1
- Billman-Woodard Company, a partnership, Hope, Ind., and Elmer Billman and Ormand H. Woodard, members1
- Birk Bros. Brewing Co.1
- Bisceglia Brothers Wine Co.1
- Bitney Poultry Co.1
- Blue Ribbon Fish Co.1
- Blumoon Food Products, Inc.1
- Bonner Packing Co.1
- Booth Cold Storage Co.1
- Breyer Ice Cream Co. and Frank S. Bartolett and Herman Kruse1