Instrumentation - Process Control
- Aerzen
- Amtech Drives, Inc.
- Aqua-Aerobic Systems, Inc.
- Automation24, Inc.
- AutomationDirect
- CAS DataLoggers
- Eagle Microsystems, Inc.
- FCI - Fluid Components International
- Force Flow
- Hach
- Halogen Valve Systems, Inc.
- Hawk Measurement
- HF scientific, a Watts Brand
- Howden
- Keller America Inc.
- KROHNE Inc.
- LaMotte Company
- Lone Star Blower and Compressor
- Lovibond
- Lutz-JESCO America Corp.
- Myron L ® Company
- Pepperl+Fuchs
- PMC-STS, Inc.
- Pulsar Measurement
- Seametrics
- Sensorex
- Sierra Instruments, Inc.
- YSI, a Xylem brand