When was Xcimer founded?

Xcimer was founded in 2021 and raised its 1st funding round 1 year after it was founded.

Where is Xcimer located?

Xcimer is headquartered in Redwood City, United States.

Who is the current CEO of Xcimer?

Conner Galloway of Xcimer. They have also founded 1 company.

How many employees does Xcimer have?

As of Mar 31, 2026, the latest employee count at Xcimer is 119.

Is Xcimer a funded company?

Xcimer is a funded company, having raised a total of $100M across 4 funding rounds to date. The company's 1st funding round was a $***** Seed round, raised on Oct 2022.

How much is Xcimer worth?

The latest valuation of Xcimer is $***** as of Oct 01, 2022.

When was the latest funding round of Xcimer?

Xcimer's latest funding was a $***** Series A round on Jun 04, 2024, with participation from 7 investors. Its primary sector is Nuclear Energy. In United States, the Nuclear Energy sector has seen $1.3B in funding in 2026 to date.

Where does Xcimer rank among its competitors?

Xcimer ranks 5th amongst 41 active competitors, of which 26 are funded. It stands 9th in terms of total funding among its competitors. The most recent competitor to raise funding was LIS Technologies, which secured $7.13M in Mar, 2026.

Who are the top competitors of Xcimer?

Xcimer's top competitors include CFS, Proxima Fusion and General Fusion. Among them, LIS Technologies secured the most recent funding round in March, 2026.

Xcimer - 2026 Company Profile, Team, Funding & Competitors

Company Details

Developer of laser technology for commercial inertial fusion energy systems. It focuses on building high-energy laser systems to enable inertial fusion energy. The goal is to couple plasma physics and fusion confinement concepts with a lower-cost, higher-energy laser system that can scale to commercial application. It aims to deliver the future of electricity by combining proven science with breakthrough laser technology.

Website: xcimer.energy
Email ID: *****@xcimer.energy

Key Metrics

Founded Year

2021

Location

Redwood City, United States

Stage

Series A

Total Funding

$100M in 4 rounds

Latest Funding Round

Series A, Jun 04, 2024, $*****

Post Money Valuation

$***** as on Oct 01, 2022

Investors

Wireframe Ventures & 9 more

Ranked

5^th among 41 active competitors

Employee Count

119 as on Mar 31, 2026

Similar Companies

Inertia & 6 more

View Xcimer's full profile

Xcimer has raised a total funding of $100M over 4 rounds. Its first funding round was on Oct 2022. Its latest funding round was a Series A round on Jun 04, 2024 for $*****. 7 investors participated in its latest round. Xcimer has 10 institutional investors.

Here is the list of recent funding rounds of Xcimer:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Jun 04, 2024	5252952	Series A	8022650	7650315	9833527	9007739
2023	7545	Grant (prize money)	3182	1792	5567	DOE
Nov 01, 2022	9537530	Seed	9487435	3372215	5580496	3730197

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View details of Xcimer's funding rounds and investors

The founders of Xcimer is Conner Galloway. Conner Galloway is the CEO of Xcimer.

Here are the details of Xcimer's key team members:

Conner Galloway: Co-Founder & CEO of Xcimer and founder of 1 other company.
Contact Info: 2 email addresses

View details of Xcimer's Founder profiles and Board Members

Xcimer's employee count trend

Xcimer has 119 employees as of Mar 26. Here is Xcimer's employee count trend over the years:

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Top competitors of Xcimer include CFS, Proxima Fusion and General Fusion. Here is the list of Top 10 competitors of Xcimer, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	CFS 2018, Cambridge (United States), Series B	Provider of tokamak nuclear fusion reactors	$2.93B	Temasek, Tiger Global Management & 68 others	66/100
2nd	Proxima Fusion 2023, Munich (Germany), Series A	Developer of fusion power plants	$211M	Balderton Capital, Cherry Ventures & 32 others	66/100
3rd	General Fusion 2002, Burnaby (Canada), Series F	Magnetized nuclear fusion reactor developer	$515M	Chrysalix Venture Capital, GIC & 44 others	65/100
4th	TAE Technologies 1998, Lake Forest (United States), Series G	Developer of FRC nuclear fusion reactors	$1.32B	Goldman Sachs, Google & 20 others	65/100
5th	Xcimer 2021, Redwood City (United States), Series A	Developer of laser technology for commercial inertial fusion energy systems	$100M	Emerson Collective, Hedosophia & 8 others	63/100
6th	LIS Technologies 2023, New York City (United States), Series A	Provider of laser isotope separation technologies optimized for uranium (HALEU) power generation	$71.6M	28 Ventures, Innovating Capital & 2 others	62/100
7th	SHINE Technologies 2005, Janesville (United States), Series D	Producer of nuclear isotopes using fusion techniques	$654M	Fidelity Investments, Deerfield & 14 others	60/100
8th	Helion 2010, Everett (United States), Series F	Provider of deuterium fuel-based magnetic-nuclear fusion reactor	$977M	Mithril, Y Combinator & 15 others	59/100
9th	Zap Energy 2017, Everett (United States), Series D	Developer of nuclear energy projects	$330M	Chevron Technology Ventures, Soros Fund Management ... & 15 others	59/100
10th	Kyoto Fusioneering 2019, Uji (Japan), Series C	Provider of nuclear fusion reactor technology based on low-energy nuclear reaction technology	$120M	JIC Venture Growth Investments, Coral Capital ... & 34 others	59/100