- Rubber City Machinery - Akron, OH
- Cooper-Standard Products - Auburn, In.
- BRC Rubber Group - Churubusco, IN.
- Custom Rubber - Cleveland, OH
- Laur Silicone - Beaverton, MI
- DuPont-Dow - Akron, OH
- ExxonMobil - Houston, TX
- Precision Associates - Minneapolis, MN
- SKF - Elgin, IL
- Freudenberg-NOK - Plymouth, MI
- LaVelle - Burlington, WI
- Rhein Chemie Corporation - Chardon, OH
- DSM - Baton Rouge, LA
- Bayer - Akron, OH
- Uniroyal Chemical - Naugatuck, CT
- Vail Rubber - St. Joseph, MI
- Zeon Chemical - Louisville, KY