Arteche PQ, Inc. Burkert Fluid Control Systems Chromalox Data Flow Systems, Inc. Flygt - a Xylem Brand GF Piping Systems Hach Company HF scientific JCS Industries, Inc. Lutz-JESCO America Corp. Milton Roy, LLC Mission Communications Myron L Company PMC Engineering LLC Revere Control Systems Sierra Instruments, Inc. Smith & Loveless, Inc. Thermal Edge, Inc. Thermo Fisher Scientific Water Analysis Instruments YSI, a xylem brand