- Amtech Drives, Inc.
- AutomationDirect
- Badger Meter
- Blue-White Industries
- Bluesen Co., Ltd.
- Bristol Instruments
- Eagle Microsystems, Inc.
- Hach
- Hawk Measurement
- In-Situ
- infinitii ai corp.
- KELLER Pressure, Inc.
- LaMotte Company
- Lovibond
- Massa Products Corporation
- McCrometer
- MSA Safety
- Myron L ® Company
- Onyx Valve Company
- PRIMEX
- Seametrics
- Sensorex
- Sierra Instruments, Inc.
- YSI, a Xylem brand
