TerraPower
Bill Gates-founded next-generation nuclear reactor company building sodium-cooled fast reactors
Energy
📍 Bellevue, WA
Founded 2008
Current Valuation
$2.5B
as of 2022-Q3
UNICORN
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
Last Round
Series E — $830M (Aug 2022) · Lead: Bill Gates
IPO Status
no imminent plans
Fundraising Status
Series E · $830M · 3y 11mo ago
no imminent plansTotal raised $1.3B
Latest Funding Round
| Round | Amount | Date | Lead Investor | Post-Money |
|---|
| Series E | $830M | Aug 2022 | Bill Gates | — |
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.