Bob Mumgaard.

Bob Mumgaard is the Co-Founder and CEO of Commonwealth Fusion Systems (CFS), the most well-funded private fusion energy company in the world.

Mumgaard co-founded CFS in 2018 as a spinout from MIT's Plasma Science and Fusion Center, where he earned his PhD. CFS is building SPARC, a compact fusion demonstration device designed to produce net fusion energy, and ARC, a follow-on commercial power plant. The company has raised over $2 billion from investors including Bill Gates' Breakthrough Energy Ventures, Google, and Khosla Ventures-more than any other private fusion company. CFS's breakthrough was the development of high-temperature superconducting magnets that enable smaller, more economical fusion reactors than previously thought possible. The company has signed a partnership with Dominion Energy to site its first commercial power plant in Virginia. Mumgaard has been named to Time's 100 Most Influential People and MIT Technology Review's 35 Innovators Under 35. His work addresses humanity's most important energy challenge: developing a clean, abundant, and safe source of electricity. If successful, CFS could fundamentally transform the global energy system.