FundedIQ
Energy

Panthalassa: Funding, Investors & Team (Sep 2026)

Panthalassa is a technology company focused on developing renewable energy systems in the ocean, particularly to power computing and artificial intelligence infrastructure. The company works on harnessing wave energy to generate electricity at sea, which can then be used to run offshore data centers or converted into fuels that are transported back to land.

panthalassa.com LinkedIn Portland, United States 101-250 employees
Energy Renewable Energy Sustainability B2B
Total raised
$140M
Rounds
1
Latest
Series B
May 2026

Panthalassa has raised $140M across 1 funding round on record, the most recent a Series B of $140M announced in May 2026.

That round is above the $14M median round size for Energy companies tracked on FundedIQ over the last two years.

Panthalassa Company Profile and Key Stats

Total funding raised
$140M
across 1 round on record
Funding rounds on record
1
Latest funding round
Series B
$140M in May 2026
Employees
101-250
reported band
Headquarters
Portland, United States

Latest funding round on record: May 2026.

Panthalassa Funding Rounds

Date
Round
Amount
Series B
$140M

Panthalassa Founders and Leadership Team

Name
Role
Contact
Garth Sheldon
Founder
Locked

Contact details for the Panthalassa team: 1 has a LinkedIn profile.

Start 14-day free trial →

Panthalassa Funding Compared to Other Energy Startups

Segment
Companies
Median round
2,284
$14M
29,795
$7.5M
4,307
$30M

Panthalassa's latest round of $140M is above the median round in Energy. Medians cover the last 24 months of disclosed rounds.

Funded Startups Like Panthalassa in Energy and Portland

Companies Similar to Panthalassa

Ampaire is at the forefront of the Third Aviation Revolution, creating aircraft that are…

Series B $19.0M

Thea Energy is taking a faster approach to commercialize fusion energy. The company’s fusion systems will…

Series B

Form Energy develops and commercializes a low-cost battery system that can store wind and solar energy for a…

Series G $750M

LevelTen Energy is a company that offers a platform for renewable energy buyers, sellers, and advisors to…

Undisclosed round

Zeno is developing next-generation radioisotope power systems that generate carbon-free, resilient power for…

Undisclosed round $3.6M

Base Power is a contemporary energy company that focuses on backup battery systems for homes and electricity…

Series D $1.0B

Valar Atomics is a company focused on scaling nuclear energy beyond the traditional electricity grid.

Series B $1.0B

Antora Energy delivers zero-carbon industrial heat and power to heavy industries that are more reliable than…

Series C $550M

Commonwealth Fusion is a research company that develops energy through an inexhaustible power plant. It uses…

Undisclosed round $1.0B

Antares Industries is an advanced nuclear energy startup that designs and manufactures adaptable and scalable…

Series C $370M

WATT Fuel Cell Corporation is a developer and manufacturer of Solid Oxide Fuel Cell (SOFC) components and…

Undisclosed round

Gritt Robotics is utilizing AI and Robotics to automate the construction of renewable energy projects.

Series A $26.0M

Panthalassa Funding FAQs

What does Panthalassa do?

Panthalassa is a technology company focused on developing renewable energy systems in the ocean, particularly to power computing and artificial intelligence infrastructure. The company works on harnessing wave energy to generate electricity at sea, which can then be used to run offshore data centers or converted into fuels that are transported back to land.

How much funding has Panthalassa raised?

Panthalassa has raised $140M across 1 round on record. The most recent is a Series B of $140M announced in May 2026.

When did Panthalassa last raise funding?

Panthalassa's most recent funding round on record is a Series B of $140M, announced in May 2026.

Who founded Panthalassa?

FundedIQ lists Garth Sheldon (Founder) at Panthalassa.

Where is Panthalassa headquartered?

Panthalassa is based in Portland, Oregon, United States.

How many employees does Panthalassa have?

Panthalassa is in the 101-250 employee band.

How does Panthalassa's funding compare to other Energy startups?

Panthalassa's latest round of $140M is above the $14M median round size for Energy companies on FundedIQ across 2,284 tracked companies over the last two years.

About FundedIQ's Panthalassa Funding Data

FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.

Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Panthalassa is left off this page rather than filled in.

14-day free trial · Cancel anytime

Know who just raised. Then know who to reach.

Every newly funded startup with its round, its investors and its founders: delivered weekly by email, or searchable in the app.

Alerts from $19/mo · Pro from $99/mo. Card required, nothing charged until day 15, and we email you 3 days before that.