Dianne is Past Chair of the Board of the Ontario Tennis Association (OTA) and has served on the board in various capacities since 2012, including Chair of the Board from 2021 to 2025.

In April 2025, Dianne was elected for a second term as Chair of Tennis Canada’s Council of the Provinces and Territories (COPT), which implements national programs, events and initiatives aimed at increasing participation and raising the profile of tennis in Canada. In her role as Chair of the COPT, she also serves as a member of Tennis Canada’s Nominating Committee responsible for nominating qualified individuals as candidates for Directors. She is a selected member of Tennis Canada’s Circle of Ambassadors, a group of inspirational women and men who champion equity in sports in conjunction with National Bank’s Game.Set.Equity campaign.

Dianne retired from the Board of Directors of the Scarborough Tennis Federation in 2020 after 14 years serving in various capacities, including President and Past President. In 2022, she was awarded the Scarborough Tennis Federation Distinguished Service Award for outstanding volunteer service for tennis in Scarborough. Dianne served as a community tennis club President for 17 consecutive years and in 2023 received a Certificate of Exemplary Leadership from The Hon. Gary Anandasangaree, Member of Parliament. She served for eight years on the City of Toronto Tennis Liaison Committee.

Since 2018, Dianne has served on the Board of Directors of YouthLink (formerly The Big Sister Association of Metropolitan Toronto), a multi-service agency offering mental health support for youth aged 12-24 and their families. She is Chair of the Governance Committee.

Dianne has worked for a self-regulatory organization in the securities industry for over 30 years. She manages and executes high-profile, large-scale national corporate events and the production of on-demand educational webcasts that help registered individuals achieve their mandatory continuing education requirements.

Dianne is currently participating in the Rotman School of Management Director Education Program, leading to the ICD.D designation (expected Spring 2026).