| Companion | Term |
|---|---|
| Robert M. Richards | 2021 - 2022 |
| William Edwards | 2018 - 2021 |
| Michael Downey | 2017 - 2018 |
| Robert Miller | 2016 - 2017 |
| William H. Edwards | 2015 - 2016 |
| Melvin Voss | 2014 - 2015 |
| Frank R. Torres | 2013 - 2014 |
| Clifford B. Cavender | 2012 - 2013 |
| Melvin Voss | 2011 - 2012 |
| Frank R. Torres | 2010 - 2011 |
| Dean O. Hildreth | 2009 - 2010 |
| Frank R. Torres | 2014 - |
| William H. Edwards | 2020 - |
| William H. Edwards | 2021 - |