Xcimer
Denver, US · Founded 2021 · 154 employees on LinkedIn · 8 known investors
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Xcimer Energy develops laser-driven inertial fusion technology, aiming to turn decades of fusion research into commercial fusion power plants that provide large-scale electricity while supporting air defense and national security applications. It is a deeptech energy company building laser and pulsed-power systems for fusion power generation.
Founders & leadership
Xcimer was founded in 2021 by Conner Galloway and Alexander Valys.
Investors · 8
Reported raises · per SEC filings
Form D private placements$1.2M disclosed across 2 of 3 rounds · 2022–2024
▶$365KraisedNov 2022 · 1 investors · Other EnergyRule 506(b)
- Conner GallowayExecutive Officer, Director
- ALEXANDER VALYSExecutive Officer, Director
- Offering amount
- $10M
- Amount sold
- $365K
- Minimum investment
- $25K
- First sale
- Oct 2022
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
▶$875KraisedApr 2022 · 6 investors · Other EnergyRule 506(b)
- ALEXANDER VALYSExecutive Officer, Director
- Conner GallowayExecutive Officer, Director
- Offering amount
- $2.5M
- Amount sold
- $875K
- Minimum investment
- $25K
- First sale
- Mar 2022
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
In the news
Every fusion startup that has raised over $100M | TechCrunchtechcrunch.com · Aug 2026
DOE approves Xcimer’s laser fusion power plant design -- ANS / Nuclear Newswireans.org · Aug 2026Frequently asked questions
- What does Xcimer do?
- Xcimer Energy develops laser-driven inertial fusion technology, aiming to turn decades of fusion research into commercial fusion power plants that provide large-scale electricity while supporting air defense and national security applications. It is a deeptech energy company building laser and pulsed-power systems for fusion power generation.
- Who founded Xcimer?
- Xcimer was founded by Conner Galloway, Alexander Valys in 2021.
- Who are Xcimer's investors?
- Xcimer's investors include Breakthrough Energy Ventures, Gigascale Capital, Leitmotif, LOWERCARBON, Lowercarbon Capital, Prelude Ventures, Wireframe Ventures, Starlight Ventures.
- How much funding has Xcimer raised?
- Xcimer has disclosed $1.2M raised across 2 of its 3 known rounds.
- Where is Xcimer headquartered?
- Xcimer is headquartered in Denver, US.