Key facts
- 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).
Leadership
- Garth CoulsonCo-Founder, Chief Executive Officer & Board Member
- Brian MoffatCo-Founder, Chief Innovation Officer & Board Member
- ·Post-money valuations for all 3 rounds
- ·The complete investor list — 19 names
- ·Watchlist + deal alerts for Panthalassa
Funding rounds
3 roundsSecondary demand: investment vehicles
from 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. Vehicles like these are how secondary buyers pool demand for a name; a rising count is a demand signal.
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)
Panthalassa doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Panthalassa shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Panthalassa in its N-PORT filings yet. We sweep new filings monthly.