- AERZEN
- Amtech Drives, Inc.
- Aqua-Aerobic Systems, Inc.
- AutomationDirect
- Badger Meter
- Eagle Microsystems, Inc.
- Emerald Coast Manufacturing
- Hach
- Hawk Measurement
- HF scientific, a Watts Brand
- KELLER Pressure, Inc.
- KROHNE Inc.
- LaMotte Company
- Lone Star Turbo
- Lovibond
- Lutz-JESCO America Corp.
- Massa Products Corporation
- Myron L ® Company
- Pulsar Measurement
- Pyxis Lab, Inc.
- Seametrics
- Sensorex
- Sierra Instruments, Inc.
- USABlueBook
- VEGA Americas, Inc.
- YSI, a Xylem brand
