About the

Kielburger Brothers

For more than three decades, brothers Marc Kielburger ​and
Craig Kielburger have worked together to explore a question that has shaped their lives:

What Makes a Life Truly Meaningful?

Their work has taken them across continents and disciplines, from social entrepreneurship, global development and education to movement building, longevity, health, human connection and fulfillment.

Today, that life's work comes together through​ Fulfilled Life, a deeply personalized approach to helping people live their longest, healthiest and best lives.

Father carrying his child at the beach

The Kielburger ​Brothers Today

Today, Marc and Craig Kielburger are authors,
social entrepreneurs and co-hosts of the My Legacy podcast.

Marc’s work explores longevity, health, reconnection and fulfillment.
Craig’s focuses on movement building, service, belonging and impact.

Together, their work asks a shared question:

How do we live longer,
healthier and more meaningful lives?

Marc and Craig Kielburger with Elie Wiesel, Nobel Peace Prize recipient and authorMarc and Craig Kielburger with Malala Yousafzai, Prince Harry and Richard BransonCraig and Marc Kielburger on stage with Oprah WinfreyMarc and Craig Kielburger seated with His Holiness the Dalai LamaThe Kielburger brothers with a world leader at a public eventThe Kielburger brothers at a community gatheringMarc and Craig Kielburger speaking at a live eventThe Kielburger brothers with partners and supportersThe Kielburger brothers with friends of the movementMarc and Craig Kielburger at an international gatheringThe Kielburger brothers photographed with guests

Two Brothers.
One Life’s Work.

Marc and Craig's paths have always been deeply connected, but their individual experiences have given them distinct perspectives on what it means to live well.

Marc Kielburger's personal health journey led him upstream in search of the root causes of declining health. What he discovered was a deeper pattern of disconnection from self, others, nature and purpose. That realization led him into longevity medicine, biohacking and the science of reconnection, shaping a belief that living longer and living more meaningfully are deeply connected. 

Craig Kielburger's journey began at age 12, when the story of Iqbal Masih moved him to turn an idea into action. Over the three decades since, Craig has built and studied movements across philanthropy, education, business and civic life, exploring what makes people believe in something, commit to it and carry it forward. Along the way, he saw how belonging to something larger than ourselves can create meaning, connection and fulfillment.

Two young men smiling in a crowd

Different paths led them toward a shared realization:

Fulfillment begins with connection.

Connection to yourself.

Connection to others.

Connection to the world around you.

From an Idea at 12 to a Global Life’s Work

Craig was just 12 when he founded Free The Children after learning about Iqbal Masih, a boy his age who had escaped child labor and was later murdered.

Marc soon joined him.

What began with a group of young people grew into decades of work spanning education, healthcare, economic opportunity, service and global development.

The international programs they helped build empowered 200,000 students through education, supported 30,000 women through alternative income initiatives and provided more than one million people across Africa, Asia and Latin America with access to healthcare and clean water.

Their live events brought together more than 1.5 million young people, alongside global leaders, Nobel Laureates, activists, educators and
cultural figures.

Today, that work continues through Legacy+, Legacy College and the Dalai Lama Center, extending their exploration of purpose, compassion, connection and human potential.

But across every chapter, the questions underneath the work
remained remarkably consistent:

What makes life meaningful?
What connects us?
What are we here to contribute?

A New Dream of Connection, Love and Fulfillment

Those questions became central to What Is My Legacy?: Realizing a New Dream of Connection, Love, and Fulfillment, co-authored by Marc and Craig Kielburger with Martin Luther King III and Arndrea Waters King.

Featuring a foreword by His Holiness the Dalai Lama and contributions from Simon Sinek, Jay Shetty, Julia Roberts, Pete Carroll, Melinda French Gates and others, the book explores legacy not simply as what someone leaves behind, but as something lived through everyday choices, relationships and contributions.

Marc and Craig also co-host the My Legacy podcast and syndicated radio show alongside Martin Luther King III and Arndrea Waters King, exploring the people, relationships and experiences that shape extraordinary lives.

Their next book, Happiness vs. Fulfillment, takes the question further, challenging the pursuit of happiness as life's ultimate goal and exploring a richer way of living grounded in connection to self, others and the world.

Four people holding a YouTube Silver Play Button award
Person standing on a mountain top at sunrise

The Next Chapter Is Fulfilled Life

After more than three decades exploring purpose, service, health, connection and what makes a life meaningful, Marc and Craig's work comes together in Fulfilled Life.
Not as a single prescription for how to live.
But as a deeply personalized approach built around a simple belief:

Your Fulfilled Life Cannot
Be Prescribed

For Marc, the path has been shaped by health, longevity and reconnection.

For Craig, by service, belonging and the power of building something larger than oneself.

Together, those perspectives inform a broader approach that brings together advanced science, ancient wisdom, extraordinary experiences, education, health, relationships, purpose and contribution

All around one person:

You.

Person floating on their back in calm water

Meet the Kielburger Brothers

Marc Kielburger

Marc Kielburger

Longevity. Health. Reconnection. Fulfillment.

Marc's personal journey from declining health to a deeper understanding of reconnection has shaped his work at the intersection of longevity medicine, biohacking and fulfilled living.

Meet Marc Kielburger

Craig Kielburger

Craig Kielburger

Movement Building. Service. Belonging. Fulfillment.

Craig's three decades of building movements around the world have shaped his understanding of how service, contribution and belonging connect people to something larger than themselves.

Meet Craig Kielburger

What Does a Fulfilled Life
Look Like for You?