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X-energy
Rockville, US · Founded 2022 · 1,749 employees on LinkedIn · 13 known investors
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X-energy develops advanced nuclear energy technology, including small modular high-temperature gas reactors and TRISO fuel. Its reactors are designed to supply electricity and high-temperature steam for utilities and energy-intensive heavy industry.
Founders & leadership
X-energy was founded in 2022 by Kamal Ghaffarian.
Board
Investors · 13
How we know: av.vc · Not right? Tell us
How we know: Green Sands Equity's portfolio page · Not right? Tell us
How we know: the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: IBX's portfolio page · a partner's Signal profile · open dataset · 5k.vc investor directory · Not right? Tell us
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How we know: Industrious Ventures's portfolio page · Not right? Tell us
How we know: Teachers' Venture Growth's portfolio page · Not right? Tell us
How we know: The Venture Collective's portfolio page · the VCSheet dataset · Not right? Tell us
How we know: a partner's Signal profile · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: the VCSheet dataset · Not right? Tell us
Reported raises · per SEC filings
Form D private placements$22.8M disclosed across 1 round · 2025
▶$22.8MraisedJul 2025 · 74 investors · Other EnergyRule 506(b)
- Carter LawsonExecutive Officer
- J. Clay SellDirector, Executive Officer
- Gregory GoffDirector
- Kamal GhaffarianDirector
- Edward SonnenscheinDirector
- Daniel GrossDirector
- Kathleen HyleDirector
- Christopher GintherDirector
- Laura GarciaExecutive Officer
- Michael WallaceDirector
- Steven MillerExecutive Officer
- James HamiltonDirector
- Allyson SatinDirector
- David KaplanDirector
- Amount sold
- $22.8M
- Minimum investment
- $1
- First sale
- Jun 2025
- Incorporated
- Limited Liability Company, Delaware, 2022
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Founder mafia
2 people who came through X-energy went on to found or lead other companies.
Frequently asked questions
- What does X-energy do?
- X-energy develops advanced nuclear energy technology, including small modular high-temperature gas reactors and TRISO fuel. Its reactors are designed to supply electricity and high-temperature steam for utilities and energy-intensive heavy industry.
- Who founded X-energy?
- X-energy was founded by Kamal Ghaffarian in 2022.
- Who are X-energy's investors?
- X-energy's investors include Alumni Ventures, G Squared, Green Sands Equity, Gula Tech Adventures, IBX, Industrious Ventures, Litquidity Ventures, Stack Capital and 5 more.
- How much funding has X-energy raised?
- X-energy has disclosed $22.8M raised across 1 round.
- Where is X-energy headquartered?
- X-energy is headquartered in Rockville, US.