Biography
Marc Kielburger
Social entrepreneur, New York Times bestselling author and longevity advocate. Co-founder of Free The Children with his brother Craig, and today co-leader of Legacy+ and co-founder of Unlimited Life.
Biography
Social entrepreneur, New York Times bestselling author and longevity advocate. Co-founder of Free The Children with his brother Craig, and today co-leader of Legacy+ and co-founder of Unlimited Life.
Marc Kielburger is a Canadian social entrepreneur, New York Times bestselling author and longevity advocate, born in 1977 in Thornhill, Ontario. A Harvard graduate and Rhodes Scholar, he spent three decades building youth-service movements with his younger brother, Craig Kielburger, starting with Free The Children. Today Marc co-leads Legacy+, co-founded the longevity program Unlimited Life, and co-hosts the My Legacy Podcast with Martin Luther King III and Arndrea Waters King.
Marc co-leads Legacy+, a Toronto-based organization of strategists, designers, storytellers and innovators that helps companies, foundations and individuals build movements and legacy projects with measurable impact. He co-founded Unlimited Life with Dave Asprey and Dr. Tim Cook, a program that brings together longevity medicine, biohacking and fulfillment, and he is a Certified Health Coach. He also co-founded Trifecta Health, a personalized health company that uses genomic testing, expert interpretation and custom-compounded supplements in place of one-size-fits-all advice. His framework for living longer and more fulfilled, which he calls the Longevity Trifecta, is the focus of his writing and speaking today.
With Craig, Martin Luther King III and Arndrea Waters King, Marc co-hosts the My Legacy Podcast, syndicated on iHeartRadio, and he serves as Chancellor of Legacy College in Kenya. He is also a co-founder of the Dalai Lama Center, a member of YPO, and a contributor to Entrepreneur's Leadership Network. The four co-authors' new book, Happiness vs. Fulfillment, is out November 10, 2026. For monthly updates, see what the Kielburger brothers are doing now.
Marc Kielburger grew up in Thornhill, Ontario. He graduated from Harvard University in International Relations, then went to the University of Oxford as a Rhodes Scholar, where he completed a law degree. He has since received 10 honorary doctorates and degrees.
In 1995, Marc's younger brother Craig, then 12, founded Free The Children after reading about the death of child-labour activist Iqbal Masih. Marc helped build it into an international movement, later known as WE, along with the WE Day stadium events and the social enterprise Me to We. Over more than 30 years he has hosted more than 130 stadium events across North America and the UK, welcoming over 1.5 million attendees, with guests including His Holiness the Dalai Lama and Mikhail Gorbachev, and primetime broadcasts on ABC, CBS, CTV and Hulu.
Marc has worked with global brands including Microsoft, Unilever, Walgreens and Allstate on social movements, and with Oprah Winfrey, Sir Richard Branson and Sheryl Sandberg on legacy projects. With Oprah, he developed and launched the O Ambassadors program, which connected more than one million North American students at 2,000 schools with peers in developing countries. He was named, with Craig, one of Canada's Most Admired CEOs in the public sector.
Marc Kielburger has co-authored 10 books, most with Craig, including the New York Times bestseller Me to We and the international bestseller WEconomy. What Is My Legacy? Realizing a New Dream of Connection, Love and Fulfillment, written with Craig, Martin Luther King III and Arndrea Waters King and featuring a foreword by His Holiness the Dalai Lama, was released on Martin Luther King Jr. Day 2025. Their next book, Happiness vs. Fulfillment, is out November 10, 2026. See every title at kielburgerbooks.com.
Marc is the older of the two Kielburger brothers. They have worked side by side for more than three decades and share honours including membership in the Order of Canada and a joint induction into Canada's Walk of Fame. Read Craig Kielburger's biography, the Kielburger story, or Marc's own site, marckielburger.com.
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Marc Kielburger is a Canadian social entrepreneur, New York Times bestselling author and longevity advocate. He co-founded Free The Children with his brother Craig Kielburger, and today he co-leads Legacy+, co-founded Unlimited Life, and co-hosts the My Legacy Podcast with Martin Luther King III and Arndrea Waters King.
He co-leads Legacy+, a Toronto-based organization that builds purpose-driven movements and legacy projects. He co-founded Unlimited Life with Dave Asprey and Dr. Tim Cook and co-founded Trifecta Health, a personalized, DNA-driven health company. He also co-hosts the My Legacy Podcast on iHeartRadio and serves as Chancellor of Legacy College. His own focus is longevity medicine, biohacking and fulfillment.
Marc Kielburger was born in 1977 in Thornhill, Ontario, Canada.
He graduated from Harvard University in International Relations, then studied at the University of Oxford as a Rhodes Scholar, where he completed a law degree.
He has co-authored 10 books, including the New York Times bestseller Me to We, the international bestseller WEconomy, and What Is My Legacy? (2025) with Craig Kielburger, Martin Luther King III and Arndrea Waters King. Their new book, Happiness vs. Fulfillment, is out November 10, 2026.
Yes. Marc is Craig Kielburger's older brother. They have worked together for more than three decades, from Free The Children to Legacy+ and the My Legacy Podcast.