Mr. Wilkinson is a Director of The Co-operators and serves as a director on a regional agriculture and consumer co-operative. He was inducted into the Canadian Agricultural Hall of Fame for his work in improving the economic situation within rural Canada. In February of 2009, he received an Honorary Doctorate of Laws from the University of Guelph for his contribution to Canadian agriculture.

He  is a Past-President of the International Federation of Agricultural Producers (IFAP), where he served a six year term. Prior to that, he served as President of the Ontario Federation of Agriculture, as well as the Canadian Federation of Agriculture. Jack also served as Vice-Chair of the Global Forum on Agriculture Research (GFAR).

Jack continues to operate a Northern Ontario farm with his wife Julie, and to speak at national and international events on issues facing agriculture.