- Flow Meters
- Dynasonics, Precision Flow Products, Sponsler, Thermal Instrument Co., Master Meter, Delta Controls, Lake Monitors.
- Level
- Delta, ISE-Magtech, Senex,Reotemp, Love Controls, Burns Engineering, McDaniel Controls, Alloy Engineering
- Temperature
- Hyde-Park, Keptrol, K.E.P., Olympic Controls, Partlow, Love Controls
- Pressure
- Ronningen-Petter, Miller-Leaman Inc.( Thompson), Serfilco, LTD
- Data Acquisition
- Phoenix Contact Wireless, Kessler-Ellis, Partlow, Love
- Process Control
- K.E.P., Schneider, Love, Regal, Olympic, Phoenix Contact
- Filtration
- Miller-Leaman, Rosedale, Ronningen-Petter, Balston, Finite, Hankison, Wilkerson
- Valves and Specialty Products
- Control Air, Remote Control, Lance Valves, Mil-Ram Technology, IMI Cash Valve. Quantum Analytical, VNE, Hydro Instruments, Sterling, North American
