Garth Sheldon-Coulson is the founder of Panthalassa. Panthalassa has raised $140M, latest Series B $140M (2026). AI Infrastructure · Portland, OR.
Garth Sheldon-Coulson is the founder of Panthalassa. Panthalassa operates in AI Infrastructure and is based in Portland, OR. Panthalassa has raised $140M, latest Series B $140M (2026). Backers on record include David Mindell, David Wanek, Unless, Western Technology Investment.
This founder profile draws on disclosed rounds, filings and investor records in the StartupFundraising database and is updated as new funding is recorded. Founders raising now use profiles like this one to study comparable AI Infrastructure journeys in Portland — who backed them, at what stage, and how much they raised.
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