• Wheatland Tube Company

• Caloritech Inc., Canada

• Caloritech Inc., USA

• Chesney Morales & Associates, Inc.

• Delta-Therm Corp.

• Eliason Corp.

• Flow Control Industries Inc.

• General Plastics Manufacturing Company

• Gordon R Williams Corporation

• J-M Manufacturing Co., Inc

• Kraissl Co.

• Lee Products

• Lochard, Inc

• Luwa Bahnson Inc.

• Melrose Chemicals Ltd.

• QuikWater, A Division of Webco Industries, Inc.

• Spears Manufacturing Company, Inc.

• Tru-Flex Metal Hose Corp.

• Turbotec Products

• Woodbrier Associates, Inc.