MEARIE Board Chairs
- 1987 - Ralph Nichol, Leamington PUC
- 1988 and 1989 - Carl Anderson, North York Hydro
- 1990 - Frank Hueston, Port Hope HEC
- 1991 - Marv LeClair, Essex PUC
- 1992, 1993 and 1994 - Doug McCaig, Fort Frances PUC
- 1995 - Bill Scott, York Hydro
- 1996 - Jim MacKenzie, Guelph Hydro
- 1997 - Pauline Storks, Clarington Hydro
- 1998 - Elvin Martin, Waterloo North
- 1999 - John Loucks, Nanticoke Hydro
- 2000 - Brian Hollywood, Lindsay Hydro
- 2001 - Pauline Storks, Veridian Corporation
- 2002 and 2003 - Dave Sinclair, Kenora Hydro Electric Corporation Ltd.
- 2004 - Don MacMaster, Whitby Hydro Electric Corporation
- 2005 - John Loucks, Brantford Power Inc.
- 2006, 2007 and 2008 - Robert Mace, Thunder Bay Hydro Electricity Distribution Inc.
- 2009 - Brian Bentz, PowerStream Inc.
- 2010, 2011, 2012 and 2013 - Robert Mace, Thunder Bay Hydro Electricity Distribution Inc.
- 2014, 2015 and 2016 - Vinay Sharma, London Hydro Inc.
MMI Board Chairs
- 1998, 1999, 2000 and 2001 - Elvin Martin, Waterloo North Hydro Inc.
- 2002 - Pauline Storks, Veridian Corporation, Chair
- 2003 - Dave Sinclair, Kenora Hydro Electric Corporation Ltd.
- 2004 - John Loucks, Brantford Power Inc.
- 2005 and 2006 - Gerry Guthrie, Kitchener-Wilmot Hydro Inc
- 2007 and 2008 - Dave Sinclair, Kenora Hydro Electric Corporation Ltd.
- 2009 and 2010 - John Sanderson, Whitby Hydro Electric Corporation
- 2011 and 2012 - Roland Herman
- 2013 and 2014 - Robert Mace, Thunder Bay Hydro Electricity Distribution Inc.
- 2015 and 2016 - Brian Wilkie, Niagara Peninsula Energy Inc.