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Endurance Energy

Endurance: The Seafloor Power Company

Latest funding

$54M Series A ·

Led by Founders Fund · Source: siliconangle.com

Total raised: $79M across 2 sourced rounds

All 2 rounds ↓
X: @endurancegeo · 559 followers.
LinkedIn: enduranceenergy.
Sectors: CleanTech, Energy, Geothermal Energy, Renewable Energy.
Stage: Series A.
Based in: Seattle, United States.
Founded: 2024.
Total raised: $79M in 2 sourced rounds.
Last round: Jun 11, 2026 · 157 days ago.
Headcount: 11–50 employees.
On Recent Funding since: Sep 29, 2026.

Signals

X account@endurancegeo · created Oct 26, 2025 (13 months old) · 559 followers
Website registeredJan 21, 2009 (17 years old)
TIMELINE · MONEY RAISED

Endurance Energy | 217 days from X account to first raise on record

@endurancegeo·Raised $79M in 2 sourced rounds·1 signal before the first raise
$20M$40M$59M$79MNOVJAN 2026MARMAYJULSEPNOV$79M||X ACCOUNT CREATED @ENDURANCEGEO · OCT 26, 2025$25M Seed · May 31, 2026$25M SEED · MAY '26$54M Series A · Jun 11, 2026$54M A · JUN '26

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

DateRoundAmountLeadSource
Series A$54MFFounders Fundsiliconangle.com
Seed$25MFFounders Fundfundraisingfox.com

Timeline

  1. X account created
  2. Website created

Founders and team

Acquisitions

Acquired companyPriceAnnounced
SStonePoint EnergyNot disclosed publiclyDate not given

Investors

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Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/endurance-energy (get a free API key).

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