| 1994 | Gordon Batley, P. Eng. (Deceased) |
| 1994 | Richard Théberge, LL.L., LL.M |
| 2000 | G. Douglas Bonner, P. Eng. |
| 2007 | John Dickson, Ph.D. (Deceased) |
| 2014 | Rob Deverall (Deceased) |
| 2015 | Alnoor (Al) Nathoo, P. Eng. |
| 2018 | Stephen Walker, P. Eng. |
| 2022 | Michael L.J. Maher (Deceased), Ph.D., P. Eng. |
| 2022 | Barry Loescher, Ph.D., P. Chem. |
| 2023 | Richard L. Carrington |
| 2023 | Gilbert McIntee, P. Eng. |
| 2025 | Gordon H. Leaman, P. Eng. |
| 2025 | David Hope, PChem. |
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