• Aerzen USA
• Aqua-Aerobic Systems, Inc.
• AWT Technologies, Inc.
• BDP Industries, Inc.
• Bright Technologies, Specialty Division of Sebright Products, Inc.
• Calgon Carbon Corporation
• DEL Tank & Filtration Systems
• Flo Trend Systems, Inc.
• Harmsco Filtration Products
• Hayward Flow Control
• Huber Technology, Inc.
• Koch Membrane Systems
• Lakeside Equipment Corporation
• Ovivo
• Prime Solution, Inc.
• ProMinent Fluid Controls, Inc.
• Real Tech, Inc.
• Smith & Loveless, Inc.
• SPX Flow Technology
• WesTech Engineering, Inc.