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TerraPower

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Designs and develops advanced nuclear reactors focusing on a traveling wave reactor (TWR) concept, aiming for safe, affordable and sustainable nuclear energy

Bellevue, United StatesFounded 2008Energy
Valuation $2.5–5B Last recorded · 2026
Revenue $100–500M Latest reported FY
Headcount 1–2k Current team size
Unlock exact values This page shows ranges. Dealroom has the exact numbers for TerraPower and the history behind them.

At a glance

Founded
2008
Headquarters
Bellevue, United States
Sector
Energy
Power Law
Unicorn$1–10B valuation tierThoroughbred$100M+ revenue

Knowledge graph

News, research, reports and resources connected to this company by Dealroom
News TerraPower to break ground on first data centre nuclear project in 2027 Aug 19, 2026 Market map US Novel Energy Startups Jun 25, 2026 Market map Nuclear Fission

Investors

8 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed1 investor entered at this stage

  • Bill Gates

Series A2 investors entered at this stage

Series B and later5 investors entered at this stage

  • SK Group
  • Littelfuse
  • ArcelorMittal
  • HD Hyundai Marine Solution
  • NVentures

Ownership

Share of equity by holder

Estimated cap table from Dealroom's shareholder data — share of equity by holder. Stakes as last recorded by Dealroom (2026). Percentages are indicative.

51.5% Founders
  • 7.5%
  • 5%
  • 4.5%
  • 4%
  • 1%

Some investors are hidden on this public profile. See the full cap table on Dealroom →

Talent

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Employees mapped 1,051 incl. 3 AI specialists
Founders Hidden — book a demo/100 quality score
Key operators 7 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
4 countries with
team presence
🇺🇸 United States99.5%
🇸🇰 Slovakia0.2%
🇦🇹 Austria0.1%
🇨🇦 Canada0.1%
4 countries shown
Web traffic by country
42K monthly visits
across markets
🇺🇸 United States54.8%
🏳️ Korea11.2%
🏳️ Republic of6.2%
🇨🇦 Canada6%
🇬🇧 United Kingdom4%
Top 5 markets shown

Patents

Estimated portfolio value
$165M

157 active patent families included in this estimate.

A patent family groups patent filings for the same invention. Source: Dealroom · PatSnap.

Explore the patent portfolioPatent records, technology areas and peer comparisonsBook a demo

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about TerraPower on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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