Bill Gates-founded next-generation nuclear reactor company building sodium-cooled fast reactors
Energy📍 Bellevue, WAFounded 2008
Current Valuation
$2.5B
as of 2022-Q3
UNICORN
IPO Outlookprivate
Is TerraPower going public?
No. TerraPower has no imminent IPO plans on record. It is still private.
What is TerraPower's valuation in 2026?
TerraPower is valued at $2.5B as of 2022-Q3, set by its Series E ($830M, Aug 2022). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has TerraPower filed an S-1?
No public S-1 is on file for TerraPower.
Who are TerraPower's investors?
TerraPower's investors include Bill Gates, ARCH Venture Partners, SK Inc, Korea Hydro & Nuclear Power, GS Energy.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
TerraPower is building the first commercial Natrium reactor in Kemmerer, Wyoming, with a target operation date of 2030. The Natrium design pairs a sodium-cooled fast reactor with a molten salt thermal storage system, enabling load-following to complement intermittent renewables. Backed by a DOE Advanced Reactor Demonstration Program cost-share.
Company Profile
CEO
Chris Levesque
Founded
2008
HQ
Bellevue, WA
Employees
~900
Total Raised
$1.3B
Last Round
Series E — $830M (Aug 2022) · Lead: Bill Gates
IPO Status
no imminent plans
Fundraising Status
Series E · $830M · 4y ago
no imminent plansTotal raised $1.3B
Secondary Market
Implied price / share
$55.37
Open interest
8
Secondary price return by period
Implied per-share price from private secondary transactions, as of Jun 2026. This is a point estimate, not a quote — the feed carries no bid, ask or spread, and a secondary print is evidence of what someone paid on that date rather than a live market. Compare across every tracked name →
Latest Funding Round
Round
Amount
Date
Lead Investor
Post-Money
Series E
$830M
Aug 2022
Bill Gates
—
Talent Signal
Hiring trend
▶ Hiring steady
27% of roles posted in last 30d
Open roles
81
via greenhouse
Product-build share
43%
engineering, research, product, design
Trajectory
steady
balanced build + GTM — 43% builders vs 57% go-to-market/G&A — scaling both sides.
Actively hiring with no tracked executive churn.
Open roles by month
Open roles by function
■ product-building ■ go-to-market / G&A
Azure Systems EngineerCommissioning EngineerConsequence Safety Methods & Analysis EngineerCore Structural Materials Engineering ManagerData ArchitectDirector of Engineering
Counted from TerraPower's live job board as of 2026-08-17; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Founders & Key People
Bill GatesNathan Myhrvold
Investors
Bill Gates · ARCH Venture Partners · SK Inc · Korea Hydro & Nuclear Power · GS Energy
Products
Natrium reactor (345 MWe sodium-cooled fast reactor with molten salt storage)
Competitors
X-energy · NuScale · Oklo · Kairos Power
NuclearEnergyGates BackedSMR
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2022-Q3. Refreshed quarterly.