Key facts
- It has raised $100.9M; the latest was Grant ($4.0M) in Feb 2025.
- Notable investors include Impact Assets, U.S. Department of Energy, Breakthrough Energy, Lowercarbon Capital, Emerson Collective — 13 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 13 names
- ·Watchlist + deal alerts for Xcimer
- ·The full record, as it builds
Funding rounds
No funding rounds for Xcimer are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Xcimer
Developer of a scalable laser-driven fusion technology designed to transform the energy marketplace by providing carbon-free energy at scale. The company integrates low-cost laser technology with the reaction chamber concept to design an Inertial fusion energy system that overcomes long-standing obstacles to viable fusion power, enabling users to apply the only experimentally proven controlled fusion reaction to electrical power generation.
- Sector
- Energy
- HQ
- Denver, CO, United States
- Founded
- 2021
- Employees
- 42
- Website
- xcimer.energy/
- Ownership
- Privately Held (backing)
Xcimer doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Xcimer shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Xcimer in its N-PORT filings yet. We sweep new filings monthly.