Marc Kielburger is a social entrepreneur dedicated to helping individuals live their longest, healthiest, and most meaningful lives. He is a Co-Founder at Unlimited Life, an initiative launched in 2025 with Dave Asprey, Dr. Tim Cook, and his brother Craig, which combines science and emotional wellness. He also co-founded Legacy+ in 2022, a collective that builds transformative movements for global brands and foundations, including Allstate, CBOE, and Oprah.