- Fitzpatrick (42)
- Quadro Engineering (21)
- FitzMill (18)
- Rietz (15)
- Urschel Laboratories, Inc. (15)
- Fluid Air (13)
- Greerco (12)
- Union Process (12)
- Prater (6)
- Across International (6)
- Fluid Energy Processing and Equipment Company (6)
- Colorado Mill Equipment, LLC (6)
- Modern Process Equipment, Inc. (4)
- Packint Chocolate Equipment (4)
- NETZSCH Food & Confectionary (3)
- Jinan Shuoda Machinery Equipment (3)
- Okuma (3)
- Sala International (3)
- Schutte Hammermill (3)
- Bauermeister (3)
- Meadows Mills, Inc. (3)
- Cornell (3)
- Keith Machinery Corp (3)
- Hosokawa Bepex GmbH (3)
- Theory Application Service (3)
- NETZSCH Vakumix GmbH (3)
- Stokes (3)
- Oliver (3)
- Patterson Kelley (3)
- Paul O. Abbe (3)
- CB Mills (3)
- J.H. Day (Littleford Day, Inc.) (3)