| | Acrotech Inc. (Lake City, MN) | |
| | Pleiger Plastics Co. (Washington, PA) | |
| | Contact Rubber Corp. (Bristol, WI) | |
| | Novex Inc. (Wadsworth , OH) | |
| | Optimal Polymer Solutions (Duarte, CA) | |
| | Acrotech, Inc (Lake City, MN) | |
| | UPC - Urethane Products Corporation (Bellflower, CA) | |
| | Urethane Products Ind., Inc. (Stow, OH) | |
| | Pleiger Plastics Company (Washington, PA) | |
| | Wabtec Rubber Products (Greensburg, PA) | |
| | Urethane Products Corporation (Bellflower, CA) | |
| | Robinson Rubber Products Co., Inc (Minneapolis, MN) | |
| | Prime Industries Inc. (Lorain, OH) | |
| | MLB Molded Urethane Products (Swanton, OH) | |
| | Polymer Components (Cleveland, TN) | |
