# Garth Sheldon-Coulson Co-founder and CEO of [[Panthalassa]], the Portland, Oregon wave-powered AI data center company that raised a **$140M Series B led by [[Peter Thiel]]** in May 2026 at a ~$1B valuation. Unusual founder profile: a hedge-fund-trained energy systems thinker with a law degree, an MIT engineering master's, and a published track record of writing about AI and energy policy before founding Panthalassa. ## Background **Education.** Swarthmore B.A. → MIT S.M. (Master of Science) → Harvard Law J.D. Field of study spans engineering and law — an unusual stack that maps directly onto what Panthalassa requires: the company's product is half a maritime engineering project (regulatory regime: UNCLOS, IMO, [[U.S. Coast Guard]], state coastal commissions) and half a power-and-compute platform (regulatory regime: FERC, state utility commissions, EPA, FCC for satellite uplinks). **Stanford.** Pre-Bridgewater, Sheldon-Coulson was a Research Fellow at Stanford working at the intersection of AI and energy systems — apparently the formative period for the top-down thesis that later became Panthalassa. **Bridgewater Associates (May 2014 – Jan 2016).** Senior Investment Associate at [[Ray Dalio]]'s hedge fund, working on AI and energy research. Bridgewater is unusual among hedge funds in maintaining a substantial in-house research function on macro-systemic questions; Sheldon-Coulson's energy-systems thesis was developed there. **TechCrunch contributor.** Authored a small number of pieces for TechCrunch during the Bridgewater era — the public archive of his pre-Panthalassa thinking. ## The Founding Thesis The opening argument Sheldon-Coulson gives in Panthalassa's Gigascale Capital profile is the cleanest statement of why he founded the company: > [!quote] *"We started by asking ourselves, what was the way that you could build a platform that supplies half of the planet's primary energy? The world's rivers combined are about a terawatt. Tidal ocean currents...very hard to get anywhere close to a terawatt. Even geothermal, it's very hard to get anywhere close to a terawatt globally."* > — Garth Sheldon-Coulson, Gigascale Capital profile The reasoning: global primary energy demand is projected at roughly **20 terawatts by 2050**. To displace fossil fuels at scale, you need clean-energy primary sources with **tens of terawatts of headroom**. There are only three: **solar**, **fission/fusion**, and **the open ocean**. Solar and nuclear had multiple commercial entrants by 2016; the open ocean had effectively none. Panthalassa was founded on the gap. The reasoning is **categorically more strategic than the typical clean-energy startup pitch** — most wave-energy companies pitched themselves into the niche-renewable corner. Sheldon-Coulson pitched the open ocean as a primary-energy contender against solar and nuclear, and built the engineering around what was needed to fulfill that ambition rather than what existing wave-energy IP would permit. ## Role at Panthalassa As CEO, Sheldon-Coulson is the public face of the company and the principal external negotiator with investors, regulators, and customers. The Series B investor stack — [[Peter Thiel]] leading; [[John Doerr]], [[Marc Benioff]], [[Max Levchin]], [[Dylan Field]], [[Super Micro Computer]], Susquehanna Sustainable Investments, Hanwha Asset Management (USA), Anthony Pratt, Fortescue Ventures, Gigascale Capital — represents one of the more politically and ideologically diverse capital tables of any 2026 hard-tech round, and his ability to assemble it across the Thiel / Doerr / Benioff / Pratt blocs is a measurable founder skill. He continues to write and speak publicly (Oregon Innovation Showcase 2025, multiple podcast appearances, technical conference talks), and is the primary technology spokesperson alongside CTO/co-founder [[Brian Moffat]]. ## Why This Page Exists Sheldon-Coulson is KB-relevant primarily as the operator the [[Peter Thiel]] network has chosen to back in the offshore-compute vector of the AI infrastructure buildout. His Bridgewater background, education stack, and top-down energy-systems framing place him in the small group of **strategic-narrative-trained founders** the Thiel cluster systematically prefers (others in this category: [[Palmer Luckey]] at [[Anduril]], [[Trae Stephens]] at [[Founders Fund]], [[Alex Karp]] at [[Palantir]]). The shared template is: a founder who can articulate a civilization-scale thesis at a Davos-or-Hudson-Institute level, packaged inside a defensible-physics product. ## See Also - [[Panthalassa]] — Company - [[Brian Moffat]] — Co-founder - [[Peter Thiel]] — Series B lead - [[Bridgewater Associates]] — Prior employer - [[The Quest for 90 Gigawatts]] — Infrastructure context ## Sources - The Org — [Garth Sheldon-Coulson](https://theorg.com/org/panthalassa/org-chart/garth-sheldon-coulson) - LinkedIn — [Garth Sheldon-Coulson](https://www.linkedin.com/in/garthsheldoncoulson/) - Gigascale Capital — [Panthalassa: Harnessing Ocean Power at Terawatt Scale](https://gigascale.com/profiles/panthalassa-harnessing-ocean-power/) - Oregon Innovation Showcase 2025 — [Speaker page](https://www.oregoninnovationshowcase.com/2025/speaker/1568144/garth-sheldon-coulson) - TechCrunch — [Author archive](https://techcrunch.com/author/garth-sheldon-coulson/)