Brief Description. Massman Companies. is a leader in the design and manufacturing of precision automated machinery, Massman Companies has been providing innovative packaging systems for over 40 years. From liquid filling to case packing to palletizing, Massman has solutions for a wide range of automation needs. Massman Companies include Massman Automation. EDL. Ideal Pase, DTM Packaging, and New England Machinery. Massman Companies. prides itself...