Startup · United States
Fuse
HQ San LeandroFounded 201851-200 employees
Fuse Energy Technologies is on a mission to accelerate the world's transition to fusion energy by developing cost-effective and efficient fusion generators. Utilizing Magnetized-Liner Inertial Fusion (MagLIF) technology, Fuse has achieved significant milestones, including the development of the TITAN, a 1-terawatt Impedance-Matched Marx Generator, and the FAETON I, a neutron-producing fusion generator. Their iterative approach focuses on engineering efficiency and affordability, aiming to overcome challenges such as shot frequency, debris management, and system complexity. With a team comprising over 100 years of fusion engineering experience and 18 patents, Fuse is poised to revolutionize the energy sector by making fusion a viable and sustainable energy source.
Funding3 rounds · $148M
- Equity raised
- $148M
- Latest
- $100MStage undisclosed · Aug 19, 2026
- Last valuation
- $200M?Basis not stated · Series A · Sep 12, 2024
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Aug 19, 2026 | Undisclosed | $100M | — | — | — | Reported |
| Sep 12, 2024 | Series A | $32.0M | $200M? | — | Buckley Ventures, Tamarack Global | Reported |
| Mar 28, 2023 | Series A | $16.3M | — | — | — | Speculative |
- Undisclosed$100MAug 19, 2026
- $32.0MSep 12, 2024
- Series ASpeculative$16.3MMar 28, 2023
Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.
Systems2
Newest unveiled first. Open a system for its milestone timeline, components and sources.
Capabilities1
| Technology | Role | Maturity | TRL | Notes | Confidence |
|---|---|---|---|---|---|
| Inertial and pulsed-power fusion | Developer | Development | — | — | Reported |
Maturity and TRL describe this organization's work; the field-wide maturity is on each technology's page.
People1
Sources8
Profile1
- 1DatabaseFuse - LinkedIn company profile
LinkedIn · Supports Organization · employee range
“employee_range: 51-200 (profile: 51-200 employees)”
Systems1
- 2
Fuse · Supports System
“TITAN is a 1 TW Impedance-Matched Marx Generator – the essential MagLIF pulser building block”
Technologies2
- 3OtherBlack Flag 100
Black Flag · Supports Organization, Organization technology, Role
“Fuse Energy Technologies is on a mission to accelerate the world's transition to fusion energy by developing cost-effective and efficient fusion generators.”
- 4
Fuse · Supports Organization technology
“TITAN is a 1 TW Impedance-Matched Marx Generator – the essential MagLIF pulser building block.”
Funding4
- 5
StockAnalysis · Oct 6, 2026 · Supports Funding round
“Investors included Buckley Ventures, Tamarack Global, Bracket Capital”
- 6
Bloomberg · Aug 19, 2026 · Supports Funding round · amount
“Fuse has raised $100 million to accelerate development and commercialization of its fusion technology.”
- 7
The Business Times · Sep 12, 2024 · Supports Funding round · amount, Funding round · post money valuation usd
“The company, which has raised US$32 million in a new funding round”
- 8
PitchBook · Supports Funding round, Funding round · amount
“Later Stage VC (Series A)”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.