Panthalassa

Portland, OR · Founded 2016 · Privately Held (backing)

Manufacturer of an ocean-based energy platform designed to generate clean power at scale from offshore environments. Panthalassa is based in Portland, OR and was founded in 2016. It has raised $78.1 million across 3 recorded rounds; the latest was an $18.1 million later-stage round in Jan 2025.

Last price · $/share
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Implied valuation
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Total raised
$78.1M
Last round
Later Stage VC
Jan 2025
Valuation — not yet established

No valuation for Panthalassa is on record yet — no priced round, mark, or trade has surfaced in our sources. Total raised ($78.1M) and the funding record below are the closest available signals.

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Panthalassa funding history

3 rounds
DateRoundRaisedPost-money
Jan 2025Later Stage VC$18.1M▮
Nov 2023Later Stage VC—▮
Feb 2022Later Stage VC$60.0M▮
Unlock post-money valuations

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How much has Panthalassa raised?

Panthalassa has raised $78.1 million across 3 recorded rounds since 2022. The largest was a $60 million later-stage round in Feb 2022; the most recent was an $18.1 million later-stage round in Jan 2025.

Institutional holders and vehicles

In the last 12 months, 1 investment vehicle was formed to buy Panthalassa shares, reporting $319,000 sold to 14 investors, per SEC Form D filings (most recent Mar 2026).

How Panthalassa's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Panthalassa, too few pricing signals exist to publish a composite mark; the figures above reflect the most recent observed valuation event. Full methodology →

Frequently asked about Panthalassa

How much has Panthalassa raised?
Panthalassa has raised $78.1M in total funding across 3 recorded rounds.
When did Panthalassa last raise?
Panthalassa last raised in Jan 2025 (Later Stage VC), raising $18.1M.