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Panthalassa

Panthalassa

Private
Portland, OregonEnergy & Sustainabilityhttps://panthalassa.com/

Last Round

Series B

May 4, 2026

Est. Valuation

$1B

Total Funding Raised

$193M

Momentum

Top 5%

of companies Caplight tracks

Company Overview

Panthalassa is a renewable energy and ocean technology company that develops and deploys autonomous floating nodes that convert wave motion into continuous electricity for applications like AI computing at sea and clean fuel production.

Sector

Energy & Sustainability

Verticals

Cloud Infrastructure, Alternative Fuels, Renewable Energy

Business Model

B2B

Customer Profile

Hardware Sales, Services & Consulting, Government Contracts

AI Layer

Application

Keywords

wave energywave energy conversionoffshore power generationautonomous nodesat-sea data centersfloating data centersrenewable fuel productiongreen hydrogenmarine energyocean coolingpower purchase agreementsPPAoff-grid energywave energy buoys

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Caplight Momentum Score

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Panthalassa Comparables

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Panthalassa comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Environmental Resources Management
61%
Subsea Cloud Inc.
58%
CorPower Ocean
58%

Panthalassa Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BMay 4, 2026
VC RoundMay 21, 2025
VC RoundSep 13, 2024
Series AAug 24, 2024

Key People

Founding team and executive leadership

Garth Sheldon-Coulson

Co-Founder CEO

Founding Team

Panthalassa Investors

Notable investors and investment history

Panthalassa investors
InvestorRounds
ValorSeries A
Hanwha Asset Management (USA) Ltd.Series B
SciFi VenturesSeries B
TIME VenturesSeries B
TIME VenturesSeries B
Gigascale CapitalVC Round, Series A, Series B
Planetary Venture CapitalSeries B

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jun 18, 2026

    Monthly visitors grew 123% MoM, reaching 44K.

  • May 4, 2026

    $140M round led by Peter Thiel

Panthalassa Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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Panthalassa Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about Panthalassa's valuation, stock price, and market status.

Firmographic Details

HeadquartersPortland, Oregon
Employee Range120
Year Founded2021
Last FundingMay 4, 2026

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