Congratulations to all Society members who retired between October and December 2019.
| Last Name | First Name | Company |
| Beliaev | Igor | OPG |
| Borromeo | Jane | OPG |
| Brace | Kelly | ESA |
| Christiansen | Eric | Hydro One |
| Crowe | Bernadette | Hydro One |
| Cyrenne | Mario | OPG |
| Fabian-Gomez | Michelle | Inergi CSO |
| Franco | Vidalia | New Horizon |
| Hallett | Doran | LAO |
| Hickey | Vicki-Lynn | OPG |
| Hicks | Roger | OPG |
| Hunter | Dave | OPG |
| Kaszuba | Susan | OPG |
| Koch | Jeff | Hydro One |
| Kwan-Czuppon | Joanne | OPG |
| Lalonde | Darwin | OPG |
| Lehman | William | Hydro One |
| Lintner | Kevin | OPG |
| Long | Kary | OPG |
| March | Marie | OPG |
| Mirecki | John | OPG |
| Poland | Fred | OPG |
| Styles | Darryll | OPG |
