Panthalassa key facts
- Manufacturer of an ocean-based energy platform designed to generate clean power at scale from offshore environments.
- It has raised $78.1M across 3 recorded rounds; the latest was Later Stage VC ($18.1M) in Jan 2025.
- Notable investors include Climate Capital, Founders Fund, Valor Equity Partners, Western Technology Investment, 9Yards Capital — 19 tracked in total.
- 1 investment vehicle was formed to buy Panthalassa shares in the last 12 months, reporting $319K sold to 14 investors, per SEC Form D filings.
- Status: Privately Held (backing).
Panthalassa leadership
- Garth CoulsonCo-Founder, Chief Executive Officer & Board Member
- Brian MoffatCo-Founder, Chief Innovation Officer & Board Member
Who backs Panthalassa
19+- ·The complete investor list: 19 names
- ·Watch Panthalassa: the Monday email on marks, rounds and moves
Panthalassa funding rounds
3 roundsVehicles formed to buy Panthalassa shares
secondary demand · SEC Form D filingsIn the last 12 months, 1 investment vehicle were formed to buy Panthalassa shares, reporting $319K sold to 14 investors. Most recent filing Mar 2026.
Membership and data by Private Market View
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).
Panthalassa investors
19 investors are on record for Panthalassa, including Climate Capital, Founders Fund, Valor Equity Partners and Western Technology Investment. By type, the record holds 13 venture capital firms and 2 growth equity firms. The later-stage round in Jan 2025 drew 9 investors.
Who runs Panthalassa
6 people are listed on the Panthalassa team: 2 executives and 4 board members, including Brian Moffat (Co-Founder) and Garth Coulson (Co-Founder). 3 of them have a verified direct contact on file.
About Panthalassa
Manufacturer of an ocean-based energy platform designed to generate clean power at scale from offshore environments. The company offers modular offshore energy systems and deployment infrastructure, enabling energy providers and industrial users to access scalable, low-emission power for compute and other high-demand applications.
- Sector
- Energy
- HQ
- Portland, OR, United States
- Founded
- 2016
- Employees
- 108
- Website
- panthalassa.com/
- Ownership
- Privately Held (backing)
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Panthalassa doesn't have a valuation on record yet — one is published once a priced round, a reported valuation, fund marks, or secondary prints surface in our sources. The rest of the record below builds toward it.