Startup profile · funding coverage
Panthalassa funding, valuation and investors
Portland public-benefit corp building wave-powered floating nodes that run AI inference at sea, transmitting tokens via satellite.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series B
$140M · May 2026
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
$140M
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
series b · Portland, Oregon, USA
Investors in latest funding
Lead: Peter Thiel
Other: Founders Fund , John Doerr , Super Micro Computer , Lowercarbon Capital , Gigascale Capital
Overview
Panthalassa, founded in 2016 as a public benefit corporation in Portland, Oregon, develops autonomous floating nodes that capture wave energy and use it directly onboard to power AI inference computing. Rather than transmitting electricity to shore, nodes send inference tokens to customers via low-Earth-orbit satellites (principally Starlink). Surrounding seawater provides free cooling, extending chip lifetimes. Nodes are mass-produced from plate steel in coastal factories. After sea trials of Ocean-1 (2021) and Ocean-2 (2024), the company is deploying its Ocean-3 pilot series in 2026 with commercial systems planned for 2027. In May 2026, Panthalassa raised $140M Series B led by Peter Thiel, with John Doerr, Marc Benioff's TIME Ventures, Supermicro, and returning backers Founders Fund and Lowercarbon Capital — total funding ~$210M. The company employs ~120 people with engineering talent from SpaceX, Google, Blue Origin, and Tesla.
Why Panthalassa is interesting
Panthalassa skips the grid entirely — wave energy powers onboard AI chips and seawater cools them, selling compute tokens not electricity, sidestepping the interconnection delays throttling land-based data centers.
Product & use cases
Panthalassa builds self-propelled, steel floating nodes that generate clean electricity from ocean waves, consume it onboard to run AI inference chips, and transmit results via satellite — with seawater cooling and no grid connection required.
- AI inference compute for companies facing land-based data center power and siting constraints
- Off-grid AI infrastructure co-located with renewable wave energy and unlimited cold seawater cooling
- Inference token delivery via LEO satellite to global customers without terrestrial interconnection delays
- Pilot manufacturing scale-up at Portland-area facility for Ocean-3 node deployment
Key facts
- Series B (May 2026): $140M led by Peter Thiel — total funding ~$210M (GeekWire, Business Wire)
- Ocean-3 pilot series deploying 2026; commercial systems planned 2027
- Sells compute tokens, not electricity — 'never transmitting electricity back to shore' (company thesis)
- ~120 employees; engineering from SpaceX, Google, Blue Origin, Apple, Boeing, Tesla
- Co-founders: Garth Sheldon-Coulson (CEO, ex-Bridgewater) and Brian Moffat (CIO, ex-Spindrift Energy)
- Founders Fund first backed in 2018; Peter Thiel: 'Extra-terrestrial solutions are no longer science fiction'
Funding history (newest first)
Series B
2026-05 $140M- Peter Thiel (lead)
- Founders Fund (participant)
- John Doerr (participant)
- Super Micro Computer (participant)
- Lowercarbon Capital (participant)
- Gigascale Capital (participant)
Investors in our directory
Funds linked from Panthalassa's profile — open a fund page for stage focus and related deal articles.
Competitive landscape
Edge: Novel energy-compute pairing that consumes power at source rather than fighting grid interconnection — additive energy with unlimited seawater cooling, per former Meta CTO Mike Schroepfer (Gigascale Capital).
AI data center buildouts face $765B industry spend in 2026 against grid constraints and community opposition. Panthalassa's $140M Thiel-led round bets the ocean frontier solves power and cooling together — but wave energy has decades of failed grid-connection attempts; the company's break from transmitting electricity is structurally different yet unproven at commercial scale.
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Crusoe Energy adjacent
Flared-gas-powered modular data centers on land; Panthalassa uses ocean wave energy at sea — different energy source, same off-grid compute thesis.
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Starcloud (formerly Lumen Orbit) adjacent
Space-based solar-powered data centers; Panthalassa stays in ocean with wave energy rather than orbital deployment.
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CoreWeave / traditional data centers incumbent
Land-based GPU cloud waiting on grid hookups; Panthalassa avoids siting delays but faces ocean engineering and deployment risk.
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Oklo / nuclear-for-AI startups adjacent
Alternative off-grid power for AI compute via SMRs; Panthalassa bets on wave energy plus immediate seawater cooling instead.
Notable stories
- Panthalassa spent nearly a decade on wave energy before pivoting the business model to sell compute tokens rather than electricity — 'go where the energy is' (DataDeep.tech, Business Wire).
- Chief engineer Daniel Place came from SpaceX; Peter Thiel led the $140M round personally while Founders Fund has backed since 2018 — ocean compute framed as frontier alongside extraterrestrial options (GeekWire, May 2026).
Industries
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