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Xcimer Energy

Energy · Denver, United States · Founded 2021

Xcimer Energy is developing an inertial fusion energy system that will overcome long-standing obstacles to viable fusion power by integrating low-cost and high-energy excimer laser technology with the… MoreLess

Xcimer.net is a pioneering startup in the energy sector, aiming to make fusion power a reality within the next decade. The company is developing the world's highest-energy laser system, utilizing laser technology initially designed for missile defense to create an economical 10+ megajoule class laser. This technology will be used to ignite hydrogen fuel capsules, resulting in a fusion reaction that can be harnessed for power generation.

The company's target market is the energy sector, specifically power generation. Their business model revolves around the development and commercialization of their Inertial Fusion Energy (IFE) technology. This technology has been studied in government laboratories for decades, but Xcimer is taking a unique approach by combining three essential components in a groundbreaking way.

The company's revenue model is likely to be based on the sale of their fusion power technology to energy companies and utilities. They may also generate income from licensing their technology to other companies, or from government contracts for further research and development.

Xcimer's IFE architecture includes a 10+ MJ KrF Laser, Fusion Target, and HYLIFE Chamber. The laser delivers light at a significantly lower cost and higher energy than existing technologies. The Fusion Target is a consumable fuel capsule containing hydrogen, which is ignited by the laser to create a fusion reaction. The HYLIFE Chamber, developed at Livermore National Lab and UC Berkeley, uses a liquid flow of lithium salt to absorb the fusion output and protect the structural wall, allowing for a 40-year lifetime and less waste than other concepts using DT fuel.

Keywords: Fusion Power, Inertial Fusion Energy, Laser Technology, Energy Sector, Power Generation, High-Energy Laser System, Fusion Target, HYLIFE Chamber, Sustainable Energy, Energy Innovation.

Company overview

Xcimer Energy company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2021
Headquarters
Denver, United States
Employees
131
Open positions
None listed
Dealroom signal
91.8
client focusb2btechnologyHardwaretechnologyDeep Techsub industryClean Energybusiness modelManufacturingsectorSustainable Development GoalssectorNuclear FusionsectorClimate TechsectorHard TechsectorNIF defense security and resiliencesectorNIF Energy Security and Climate ChangesectorDT and LSsectorscience-basedindustryEnergy

Valuation & funding

Xcimer Energy funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES AOther financing Jun 2024 $100M $400M Breakthrough Energy Ventures · Lowercarbon Capital · Gigascale Capital · Prelude Ventures
GRANTOther financing Dec 2023 $0 US Department of Energy
GRANTOther financing May 2023 $9M US Department of Energy
CONVERTIBLEOther financing Dec 2022 $8.8M Starlight Ventures
Showing 4 recorded eventsUnlock the complete deal history →

Growth signals

Xcimer Energy website traffic

Latest recorded traffic for Xcimer Energy is 5.1K monthly website visits, up 1940% over the last three months. Xcimer Energy's team grew 22.4% over the past year.

Latest monthly visits5.1K 3-month web change+1940% 1-year team growth+22.4%
Monthly website visits5 observations · Oct 2022–Jul 2026
Hover or focus a point to see its exact monthly valueCompare with peers →

Comparisons

Xcimer Energy compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

CompanyHeadquartersStatusEmployeesTotal fundingValuation
Renaissance FusionRenaissance Fusion builds on the success of stellarator experiments, makes them reactor-ready by quadrupling the magnetic field and simplifies them using proprietary High-Temperature Superconductors manufacturing and flowing liquid-metal walls Fontaine, France Operational 104 $52M $141M
General FusionCommercializing clean energy with Magnetized Target Fusion technology Richmond, Canada Operational
Gauss FusionIndustrial-scale stellarator fusion power plant development Hanau, Germany Operational
Novatron Fusion GroupCost-effective fusion energy solution using stable magnetic mirrors Stockholms kommun, Sweden Operational
FuseThe next generation of pulsed power fusion Napierville, Canada Operational
Crossfield FusionCrossfield Fusion has been developing a novel compact fusion reactor targeting carbon free heat and power generation. The company adopted a new approach to building fusion reactors based on patented technology called the Epicyclotron London, United Kingdom Operational
Avalanche EnergyAvalanche Energy is developing a 5kWe fusion power pack called the “Orbitron” in a form-factor the size of a lunch pail. The compact size is a key enabler of scaling for applications including micro-grids, long haul trucking, maritime shipping, aviation and space power and propulsion Seattle, United States Operational
First Light FusionInspired by the only natural example of inertial confinement on Earth, First Light Fusion is developing a practical pathway to fusion energy using the simplest machine possible Yarnton, United Kingdom Operational
Showing 8 of the closest matchesCompare every metric →

Talent graph

Xcimer Energy's talent

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Team profiled 13 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

8 investors on Xcimer Energy's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 1 investor entered at this stage
US Department of Energy
Series A 7 investors entered at this stage
Starlight Ventures
Hedosophia
Breakthrough Energy Ventures
Lowercarbon Capital
Gigascale Capital
Prelude Ventures
Emerson Collective

Global footprint

Where Xcimer Energy has talent and traffic

Workforce by country
1 countries with
team presence
🇺🇸 United States100%
1 country shown

In the news

Latest news about Xcimer Energy

Recent press, funding announcements, and product moves mentioning Xcimer Energy — open to read from the original sources.

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Market sentiment

What the market is saying about Xcimer Energy

An AI-synthesized read of the highest-engagement posts about Xcimer Energy on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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