| Charles J. Calcitrai | 2007 – 2009 |
| Camilo A. Trujillo | 2009 – 2011 |
| Thomas J. Young | 2011 – 2013 |
| David S. Rizzo ✞ | 2013 – 2014 |
| Edward J. Weyna ✞ | 2014 – 2016 |
| Antonio D’Ambrosio | 2017 – 2018 |
| Dennis J. Kasprzyk ✞ | 2018 – 2019 |
| Felipe R. Ovalle | 2019 – 2020 |
| Greg A. Archibald | 2020 – 2021 |
| John Martinez | 2021 – 2022 |
| Konrad Klimek | 2022 – 2025 |
| Misael Arroyo | 2025 – 2026 |