| ABB | Madison Electric |
| Acromag | McNaughton – McKay |
| Ashcroft Gauges | MicroMod |
| Automation Direct | Moore Industries |
| Barksdale | Omega Engineering |
| Beldon Cable | Precision Digital Corporation |
| Clark Reliance | Rockwell Automation |
| Emerson | SW Controls |
| EZ Automation | Yokogawa |
| Galco | |
| Great Lakes Process Controls | |
| Grainger | |
| Hoffman / Pentair Products | |
| Jordan Valve |
