Xcimer Energy Corporation
PrivateLast Round
Early Funding
Sep 14, 2026
Total Funding Raised
$115.5M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Xcimer Energy Corporation operates in Energy & Sustainability and is based in Denver, Colorado. Its latest recorded funding round was an Early Funding round in September 2026.
Xcimer Energy Corporation is an energy technology company that develops scalable laser-driven inertial fusion technology to deliver carbon-free energy at scale.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Defense Tech, Computing Hardware
Business Model
B2G
Customer Profile
Government Contracts, Services & Consulting
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Xcimer Energy Corporation Comparables
Compare Xcimer Energy Corporation with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| LaserFusionX Inc. | 88% | |
| Inertia Enterprises | 87% | |
| Focused Energy | 87% |
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Xcimer Energy Corporation Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Early Funding | Sep 14, 2026 | ||||
| Grant | Feb 17, 2025 | ||||
| Series A | Jun 4, 2024 | ||||
| Grant | May 31, 2023 | ||||
| Seed | Oct 18, 2022 |
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Key People
Founding team and executive leadership
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Xcimer Energy Corporation Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Gigascale Capital | Series A |
| Wireframe Ventures | Seed |
| Prelude Ventures | Series A |
| Breakthrough Energy Ventures | Series A |
| Breakthrough Energy Foundation | Series A |
| Lowercarbon Capital | Series A |
| Emerson Collective | Series A |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Oct 5, 2026
Grew 22% QoQ, from 135 to 165 employees.
- Sep 14, 2026
RTX Ventures participated in the early funding round.
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Recent news
Latest coverage and updates
- is_developingOct 9, 2026
Xcimer is developing fusion energy based around a high-energy krypton fluoride (KrF) laser in Colorado and is in line for an additional $30.5 million in US government support if it meets technical milestones, as of Oct 9th '26.
- is_developingOct 6, 2026
In Sep '26, Xcimer announces a partnership with RTX to develop directed-energy air defense systems based on its pulsed laser technology and plans to demonstrate their integration with RTX air defense systems for potential military applications.
- receives_financingOct 6, 2026
On Oct 6th '26, Xcimer finalizes an agreement for up to $39.5M in potential milestone payments through the U.S. Department of Energy’s Milestone-Based Fusion Development Program to advance its laser technology and commercial fusion power plant architecture, bringing its total non-dilutive federal funding to up to $43.5 million in Colorado.
- integrates_withOct 6, 2026
In Sep '26, Xcimer and RTX plan to demonstrate the integration and containerization of Xcimer's pulsed lasers with RTX's air defense systems, offering the U.S. military new capabilities to defeat airborne threats.
- is_developingOct 6, 2026
Xcimer is developing an excimer laser architecture that uses cost-effective gas lasers, durable gas optics, and a two-beamline configuration to deliver megajoule-scale laser energy repeatedly and economically, with grid electricity targeted for the mid-2030s.
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Xcimer Energy Corporation Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
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Frequently Asked Questions
Common questions about Xcimer Energy Corporation's valuation, stock price, and market status.
Is Xcimer Energy Corporation a public or private company?
Xcimer Energy Corporation is a private company.
What is the current stock price of Xcimer Energy Corporation?
Xcimer Energy Corporation is a private company, so its shares have no public market price. Caplight tracks Xcimer Energy Corporation's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Xcimer Energy Corporation worth (valuation)?
Valuation information for Xcimer Energy Corporation is not publicly available.
Can I buy Xcimer Energy Corporation stock?
Xcimer Energy Corporation shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Xcimer Energy Corporation's last funding round?
Xcimer Energy Corporation's most recent funding round was Early Funding on September 14, 2026.
Who are the main investors in Xcimer Energy Corporation?
Key investors in Xcimer Energy Corporation include Wireframe Ventures, Hedosophia.
Will Xcimer Energy Corporation IPO soon?
No public IPO plans have been announced for Xcimer Energy Corporation.
How can I track Xcimer Energy Corporation secondary market activity?
Caplight tracks bids, offers, and trades in Xcimer Energy Corporation's shares on secondary markets.