Craig kielburger and marc kielburger biography

Marc Kielburger is a husband, father and renowned social entrepreneur. His passions uniquely integrates biohacking, longevity medicine and consciousness to inspire others in the pursuit of living fulfilled lives.

For more than 30 years, Marc has helped companies, foundations and individuals bring purpose to life. He has worked closely with major global brands like Microsoft, Unilever, Walgreens and Allstate to help create positive social movements and has helped prominent individuals like Oprah Winfrey, Richard Branson and Sheryl Sandberg develop and deliver inspirational legacy projects.

With Oprah, Marc developed and launched the
O Ambassadors program, a multi-million dollar program that connected over one million North American youth at 2,000 different schools with their peers in developing countries.

Today, Marc co-leads Legacy+, a foundry of strategists, designers, creators, storytellers and innovators that brings purpose to life for companies, foundations and individuals by building real movements and legacy projects with real impacts. A prolific author, Marc has co-authored 10 books, including the New York Times bestseller ME to WE and the international best-seller WEconomy.

His latest book is the newly released What Is My Legacy?: Realizing a New Dream of Connection, Love, and Fulfillment.  Released on Martin Luther King Day 2025, the book has been celebrated for its profound insights on building a purposeful life.

People Magazine wrote a feature shortly before its release, noting “the book draws on neuroscience, psychology, epigenetics and their own lived experiences, to create a new framework the authors call ‘Living Legacy.’" Co-written by his brother Craig Kielburger along with Martin Luther King III and Arndrea Waters King, What is My Legacy? features a foreword by His Holiness the Dalai Lama and contributions from luminaries like Simon Sinek, Jay Shetty, Julia Roberts, Pete Carroll and Melinda French Gates, among many others.