- Founded in 1965 as E-S Precision Molded Products, in Melrose Park, Illinois with one injection molding machine
- In 1967, the plant was relocated to McHenry, Illinois and in 1973 it moved to Burlington, Wisconsin
- In 1980 we moved into a new facility, our current location in Waterford
- In 1987, the company was purchased by the Hempe Manufacturing and the name was changed to E-S Plastic Products, LLC
- Current ownership group purchased the company in December of 2011
- We added the Saukville, Wisconsin operation 5/31/12
- The ownership group currently owns and manages two other Wisconsin businesses
