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Panthalassa Raises $140.0M Series B Funding

Recently funded · $140.0M Series bUtilitiesUSView source

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Panthalassa, which aims to turn the vast power of the open ocean into the planet's cheapest energy, has secured $140.0M in Series B funding. The company is developing solutions for clean compute at sea and renewable fuels to shore, tapping into what it calls Earth’s largest and most power-dense renewable energy resource.

The significant capital infusion drew a broad syndicate of investors, notably including Peter Thiel, John Doerr, Founders Fund, and Lowercarbon Capital. They were joined by TIME Ventures, SciFi Ventures, Susquehanna Sustainable Investments, Hanwha Group, and others backing the ambitious ocean energy project.

From the source

Garth · May 4, 2026

Today we're announcing Panthalassa's $140M Series B, led by Peter Thiel, with participation from John Doerr and many other incredible investors. The mission: unlock the ocean as another planetary-scale energy resource for humanity. First stop: compute.

In 2018 we patented wave-powered computing grids made up of nodes that are integrated power plants and computing clusters and drive themselves around far from shore. Eight years later, we're ready to scale. We have one of the world's best teams, hailing from every background you can imagine. And we have amazing partners. The investors in this round are some of them: visionaries willing to bet o

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