Mark Harrison

Written By Laurie Kirby

Founder of the MH3 Collective

Mark Harrison is the founder of the MH3 Collective, a group of ventures whose purpose is to connect people & ideas to create social impact. The Collective includes:

  • Humanity, a full-service agency for CHANGEMAKERS

  • Sidekick, a realization consultancy 

  • T1, an agency that unites brands with communities

  • SponsorshipX is an advocacy platform for partnership marketers

In addition, he co-founded the BTI to support the development of Black leaders and Park Street Education, a charity that removes all barriers to children's education.

His community involvement also includes serving as Board Chair of Big Brothers Big Sisters of Toronto, as a Board Member & Chair of the Marketing Committee of the CAMH Foundation and the Canadian Academy of Recording Arts and Sciences/The JUNO Awards.

Mark received the Harry Jerome Award (Business Category), annually presented by the Black Business and Professional Association (BBPA). In addition, his success in marketing over the last thirty years has led him to be the Association of Canadian Advertisers' 2022 Gold Medal Award winner. In May 2025, Mark was inducted into the AMA Toronto Marketing Hall of Legends.

Mark is also CBC Metro Morning's business columnist, where he regularly discusses corporate and societal matters.

Laurie Kirby
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