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 Aug 31, 2026, the latest employee count at Xcimer is 155.

Is Xcimer a funded company?

Xcimer is a funded company, having raised a total of $100M across 7 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 $***** Grant (prize money) round on Oct 07, 2026, with participation from 1 investor.

Where does Xcimer rank among its competitors?

Xcimer ranks 4th amongst 49 active competitors, of which 27 are funded. It stands 9th in terms of total funding among its competitors. The most recent competitor to raise funding was CFS, which secured $1B in Jul, 2026.

Who are the top competitors of Xcimer?

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

Xcimer - 2026 Company Profile, Team, Funding & Competitors

Xcimer is a series A company based in Redwood City (United States), founded in 2021 by Conner Galloway. It operates as a Developer of laser technology for commercial inertial fusion energy systems. Xcimer has raised $100M in funding from Wireframe Ventures and Hedosophia, with a current valuation of $*****. The company has 49 active competitors, including 27 that are funded. Its top competitors include companies like CFS, General Fusion and TAE Technologies.

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 7 rounds

Latest Funding Round

Grant (prize money), Oct 07, 2026, $*****

Post Money Valuation

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

Investors

Wireframe Ventures & 9 more

Ranked

4^th among 49 active competitors

Employee Count

155 as on Aug 31, 2026

Similar Companies

Focused Energy & 7 more

View Xcimer's full profile

Xcimer has raised a total funding of $100M over 7 rounds. Its first funding round was on Oct 2022. Its latest funding round was a Grant (prize money) round on Oct 07, 2026 for $*****. 1 investor 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
Oct 07, 2026	4897855	Grant (prize money)	4062198	3856092	7993920	9918604
Sep 14, 2026	2671586	Series A	6505815	5726713	7798050	RTX
Jun 04, 2024	8813282	Series A	2556791	2752936	Hedosophia	Breakthrough Energy & 5 more

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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 155 employees as of Aug 26. Here is Xcimer's employee count trend over the years:

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Top competitors of Xcimer include CFS, General Fusion and TAE Technologies. 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 C	Provider of tokamak nuclear fusion reactors	$4B	Temasek, Tiger Global Management & 68 others	66/100
2nd	General Fusion 2002, Burnaby (Canada), Series F	Magnetized nuclear fusion reactor developer	$515M	Chrysalix Venture Capital, GIC & 44 others	66/100
3rd	TAE Technologies 1998, Lake Forest (United States), Series G	Developer of FRC nuclear fusion reactors	$1.32B	Goldman Sachs, Vulcan Capital & 20 others	65/100
4th	Xcimer 2021, Redwood City (United States), Series A	Developer of laser technology for commercial inertial fusion energy systems	$100M	Prelude Ventures, Hedosophia & 8 others	63/100
5th	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
6th	Zap Energy 2017, Everett (United States), Series D	Developer of modular nuclear systems integrating fission and fusion technologies	$330M	Soros Fund Management, Chevron Technology Ventures ... & 16 others	61/100
7th	Helion 2010, Everett (United States), Series G	Provider of deuterium fuel-based magnetic-nuclear fusion reactor	$1.44B	Mithril, Thrive Capital & 23 others	60/100
8th	SHINE Technologies 2005, Janesville (United States), Series D	Producer of nuclear isotopes using fusion techniques	$654M	Fidelity Investments, Deerfield & 16 others	60/100
9th	Proxima Fusion 2023, Munich (Germany), Series A	Developer of fusion power plants	$211M	Balderton Capital, XTX Ventures & 43 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	Coral Capital, JIC Venture Growth Investments ... & 34 others	59/100