The privately held Mack Group firm, which also owns Mack Technologies and Mack Prototype, has owned Mack Molding since its founding in 1920.

Mack Molding, which has its beginnings in bespoke injection molding, is now a top provider of contract manufacturing services and injection molded plastic parts to businesses across a variety of industries. Mack Molding is headquartered in Arlington, Vermont, and has 8 facilities around the eastern United States.

Mack has obtained the highest possible 5A1 D&B rating as a family-run firm. The company funds its own expansion and acquisitions and has no long-term debt. Mack routinely ranks among the top 10 non-automotive injection molders in North America, with sales of about $500 million.

A variety of services are offered by Mack Molding to