- Ai-Tek Instruments
- ASCO
- Ashcroft
- Aventics
- BriskHeat
- Brooks Instrument
- Bürkert Fluid Control Systems
- Check-All Valve
- Clark-Reliance
- Drager/Draeger
- Dwyer|Omega
- FireFly
- Fireye
- Flo-Tite Valve & Controls
- Flow Smart
- Fluid Path
- Fluke Corporation
- FluoroSeal Valves
- Georg Fischer
- Habonim Valve Soultions
- Hayward
- Horiba
- ITT Engineered Valves
- Jacoby-Tarbox
- Jerguson
- JMS Southeast
- Jomar Valve
- Jordan Valve
- Kadant Inc
- Keckley Company
- Key Instruments
- Kuriyama
- Lenox
- Leser
- LowFlow Valve
- Marsh Bellofram
- Micronics
- Nelson Heat Trace
- nVent Caddy US
- OPW Engineered Systems
- Parker
- PBM Valve Solutions
- Pepperl+Fuchs
- Plast-O-Matic Valves
- Powell Valve
- Precision Digital Corporation
- PureFlex
- Ralston Instruments
- Raytex / Fluke
- Richards Industrials
- Rotronic Instrument
- Samson Controls
- Sani-Matic Systems
- Score Tricentric
- Steel & O’Brien
- Steriflow Food & Beverage
- Steriflow Valve
- SVF Flow Controls, Inc
- Techline International
- Temprel
- Topworx
- Valmet
- Val-Matic