We first opened the door of Promaco, Inc. in March of 1995. Over the past 26 years we have had the pleasure of working with many incredible people and companies including Enduro Binders, Custom Technologies and Haviland Corporation. We pride ourselves on making quality products that are built to last.

In addition to injection molding, we manufacture industrial strength, high grade trash bags that are perfect for everything from tough jobs to in the home.

Enduro Binders

Custom Technologies

Haviland Corporation

Meramec Group