# Endurance Energy

**Source:** https://www.startuphub.ai/startups/endurance-energy
**Profile type:** Startup

> Harnessing deep ocean geothermal energy for baseload renewable power.

## About

Endurance Energy is a startup founded by SpaceX alumni that aims to harness terawatts of geothermal energy from deep in the ocean. The company's approach focuses on tapping into geologically active areas around the Ring of Fire, where tectonic plates spread apart, allowing hot magma to flow closer to the surface. Unlike traditional geothermal startups that drill thousands of feet into the Earth's crust, Endurance Energy plans to operate underwater, leveraging the oil and gas industry's experience with subsea operations. Their technology is designed to provide a renewable, non-polluting, 24/7 baseload power source to support coastal cities and address the surging energy demand from AI data centers, electric vehicles, and heavy industry. The company emphasizes that their operations would pose less risk to the ocean compared to potential blowouts in the oil and gas industry, as they would be releasing hot water into an already naturally occurring phenomenon.

## Key facts

- **Slug:** endurance-energy
- **Website:** https://www.endurance.energy/
- **Location:** San Francisco, United States
- **Founded:** 2025-01-01 00:00:00
- **Employees:** 21
- **Operating status:** Active
- **Total funding:** $54M
- **Sectors / tags:** Energy, Climate Tech, Renewable Energy, Geothermal, Clean Energy, Advanced Geothermal, Energy Storage, Ocean Energy, Baseload Power

## Frequently asked

### What does Endurance Energy do?

Endurance Energy is a startup founded by SpaceX alumni that aims to harness terawatts of geothermal energy from deep in the ocean. The company's approach focuses on tapping into geologically active areas around the Ring of Fire, where tectonic plates spread apart, allowing hot magma to flow closer to the surface. Unlike traditional geothermal startups that drill thousands of feet into the Earth's crust, Endurance Energy plans to operate underwater, leveraging the oil and gas industry's experienc…

### How much funding has Endurance Energy raised?

Endurance Energy has raised a total of $54M in funding. The most recent round on record is Series A.

### Where is Endurance Energy headquartered?

Endurance Energy is headquartered in San Francisco, United States.

### When was Endurance Energy founded?

Endurance Energy was founded in 2025.

### What industry does Endurance Energy operate in?

Endurance Energy operates in Energy, Climate Tech, Renewable Energy, Geothermal, Clean Energy, Advanced Geothermal.

### How many employees does Endurance Energy have?

Endurance Energy has approximately 21 people on record.

### What is Endurance Energy's revenue?

StartupHub estimates Endurance Energy's annual revenue at $14.3M (range $7.8M to $38.9M, 71% confidence), based on comparable companies in the sector.

### What is Endurance Energy's valuation?

StartupHub estimates Endurance Energy's effective valuation at $210.5M (range $135.0M to $324.0M, 25% confidence), based on comparable companies in the sector.

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