United States · 
Who invested in Xcimer Energy?
Xcimer Energy's investors include US Department of Energy, Breakthrough Energy and Lowercarbon Capital.
United States · Venture startup
Who invested in Xcimer Energy
Funding summaryUpdated 26 Oct 2026
$100Mraised across 1 round since 2026, from 1 source
- Latest round
- Venture, $100MSept 2026
- Investors
- 3
The rounds
- Sept 2026
Founders and team
From Xcimer Energy's own website: 2 founders, 7 on the team.
Alexander ValysPresident, Founder
Conner GallowayCEO, Founder
- Brent GillChief Operating Officer
- Doug WeidenheimerChief Pulsed Power Architect
- Giovanni GrecoChief Operating Officer
- Brian BoggsHead of Strategic Development
- Dan BauerHead of Talent
- Gary SobolevskiyGeneral Counsel
- Milan HolecDirector of Theory and Computation
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Xcimer Energy as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Xcimer Energy
How much has Xcimer Energy raised?
Xcimer Energy has raised $100M across 1 round since 2026.
When did Xcimer Energy last raise?
Xcimer Energy's most recent round was a Venture of $100M in Sept 2026.
What was Xcimer Energy's biggest round?
Its most recent round, $100M in Sept 2026, is also its largest on record.
Who backed Xcimer Energy first?
Xcimer Energy's first round on record, in Sept 2026, was backed by US Department of Energy, Breakthrough Energy and Lowercarbon Capital.
What stage is Xcimer Energy at?
Xcimer Energy's latest named round is a Venture, in Sept 2026.
Where is Xcimer Energy based?
Xcimer Energy is based in the United States.
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In the same sector, and raised in the last eighteen months.
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