- Armour Creameries1
- Armstron Gimli Fisheries1
- Arthur H. Dannheim and Donald A. Dannheim, trading as the New Ulm Dairy, a partnership, New Ulm, Minn.1
- Arthur J. Johnson and Gunuf Gunstenson, copartners, trading as Kelliher Creamery Co.1
- Associated Frozen Food Packers, Inc.1
- Astoria Creamery1
- Athens Canning Co.1
- Atlantic Elevator Co.2
- B. & O. Nut Corporation1
- B. A. Griffin Co., Inc.1
- Badger Fruit & Extract Co.1
- Barnard Popcorn Supply Co.1
- Barnes Company Cooperative Creamery1
- Barrett Cooperative Creamery1
- Barrett Cooperative Creamery Co.1
- Beaver Valley Creameries, Inc.1
- Belgrade Flour Mill Co.1
- Bemis Products1
- Benjamin Weiner and Julius Weiner, trading as the Marshall Produce Co.1
- Benson Produce Co.1