Garth Sheldon-Coulson

Garth Sheldon-Coulson is the co-founder and CEO of Panthalassa, a Portland, Oregon company building free-floating, wave-powered nodes that generate clean electricity in the open ocean and pair it with onsite AI computing. A Harvard-trained lawyer with an MIT master's and a Bridgewater investing background, he pivoted from finance to spend nearly a decade inventing marine energy hardware. In May 2026 Panthalassa raised a $140M Series B led by Peter Thiel, pushing its valuation near $1 billion, on a bet that the open ocean is one of only three energy sources on Earth with tens of terawatts of untapped capacity.