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Years Operating
27+
Longest-running private fusion company (since 1998)
Capital Raised
~$1.3B+
Among top 3 in fusion cumulative funding (alongside CFS + Helion)
Approach
p-B11 aneutronic target
Only major fusion developer targeting hydrogen-boron-11 fuel (no neutron flux, direct energy conversion possible)
Commercial Spinouts
2 (Life Sciences + Power)
BNCT cancer therapy in clinical use; battery / grid-storage products on the market
Trump Media Merger
$6B (announced Dec 2025)
close targeted mid-2026; would fund a commercial reactor
Total raised: ~$1.45B+ · Latest valuation: $6B (Trump Media merger, announced Dec 2025)
| Round | Date | Amount | Valuation | Key Investors |
|---|---|---|---|---|
| Early / Series A-D | 1998-2014 | Undisclosed (cumulative ~$200M) | - | Vulcan Capital (Paul Allen)Goldman SachsVenrockWellcome Trust |
| Series F | May 2018 | $40M | - | VulcanWellcome TrustNEAVenrock+1 more |
| Series G | Apr 2021 | $280M | - | TAE Investor Syndicate (including Google, Chevron, Sumitomo, Mizuho) |
| Strategic Round | Mar 2022 | $250M | $2.6B | GoogleChevronSumitomoTAE Investor Syndicate |
| Strategic Round | Jun 2025 | $150M+ | - | Chevron Technology VenturesGoogleNEA |
| Trump Media Merger (announced) | Dec 2025 | $200M at signing (+$100M on S-4) | $6B | Trump Media & Technology Group; close targeted mid-2026 |
| System | Type | Status |
|---|---|---|
| C-2W (Norman) | Fifth-gen FRC machine (75M C plasma demonstrated) | Operating since 2017 |
| Copernicus | Sixth-gen machine targeting Q-equivalent net energy | Under construction (Foothill Ranch, CA) |
| p-B11 Reactor (Da Vinci) | Aneutronic fuel cycle commercial pilot concept | Design / R&D |
| TAE Life Sciences (spinout) | Boron Neutron Capture Therapy (BNCT) for cancer treatment | Commercial (deployments in Asia) |
| TAE Power Solutions (spinout) | EV battery management + grid-scale storage | Commercial |
Long-time partner since 2014; co-developed Optometrist machine-learning algorithm for plasma optimization; investor across multiple rounds.
Series G + Mar 2022 lead; oil-major energy-transition positioning.
Japanese trading-company anchor investor since 2018; pursues Asia-Pacific deployment rights.
Japanese bank investor; participates with Sumitomo on Asia-Pacific commercialization.
One of the earliest backers; maintained position across all subsequent rounds.
Norman Rostoker (UC Irvine plasma physicist) founds Tri Alpha Energy
Norman Rostoker passes away; Michl Binderbauer becomes CEO
Fifth-generation FRC machine commissioned; named for founder
Norman achieves stable 30M C plasma; demonstrates beam-driven FRC viability
Crosses key plasma-temperature threshold for D-T relevant operation
$280M raise; Google co-developed Optometrist machine-learning algorithm for plasma optimization
Chevron + Google co-lead; one of largest single fusion rounds at the time
Demonstrates plasma formation using only neutral-beam injection (published in Nature Communications); cuts machine size/complexity/cost up to 50% and de-risks Copernicus
Chevron, Google, and NEA participate; total equity raised passes $1.45B
Agreement to merge with Trump Media & Technology Group at a $6B valuation; close targeted mid-2026, with $200M at signing and $100M on the S-4 filing
Hydrogen-boron-11 aneutronic fuel cycle commercial pilot; direct-conversion architecture
Developer of an FRC reactor with neutral beam heating, targeting p-B11 aneutronic fuel. Raised approximately $1.3B+ across multiple rounds. Norman and Copernicus machines in development at Foothill Ranch California. TAE Technologies was founded in 1998, is headquartered in Foothill Ranch, CA and employs ~400.
TAE Technologies has raised ~$1.45B+ in total at a $6B (Trump Media merger, announced Dec 2025) valuation, based on the funding rounds Sterling tracks.
Sterling groups TAE Technologies in the Nuclear sector, alongside Commonwealth Fusion Systems (private), Helion Energy (private), Tokamak Energy (private), Pacific Fusion (private) and General Fusion (private).
If you are researching TAE Technologies, also look at Commonwealth Fusion Systems (private), Helion Energy (private) and Tokamak Energy (private). You can browse the full Nuclear sector on Sterling.
