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 Sep 30, 2026, the latest employee count at Xcimer is 168.

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. Its primary sector is Nuclear Energy. In United States, the Nuclear Energy sector has seen $5.12B in funding in 2026 to date.

Where does Xcimer rank among its competitors?

Xcimer ranks 4th amongst 53 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 Xcimer, which secured $30.5M in Oct, 2026.

Who are the top competitors of Xcimer?

Xcimer's top competitors include General Fusion, CFS and TAE Technologies. Among them, Xcimer secured the most recent funding round in October, 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 7 rounds

Latest Funding Round

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

Post Money Valuation

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

Investors

Wireframe Ventures & 11 more

Ranked

4^th among 53 active competitors

Employee Count

168 as on Sep 30, 2026

Similar Companies

Inertia & 8 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 12 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	4490902	Grant (prize money)	8761955	3724850	2128015	5770601
Sep 14, 2026	1452310	Series A	9411910	6898714	1633104	RTX
Jun 04, 2024	5479400	Series A	2473489	7172258	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 168 employees as of Sep 26. Here is Xcimer's employee count trend over the years:

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Top competitors of Xcimer include General Fusion, CFS 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	General Fusion 2002, Burnaby (Canada), Public	Magnetized nuclear fusion reactor developer	$515M	Chrysalix Venture Capital, GIC & 44 others	70/100
2nd	CFS 2018, Cambridge (United States), Series C	Provider of tokamak nuclear fusion reactors	$4B	Temasek, Eni Next & 69 others	68/100
3rd	TAE Technologies 1998, Lake Forest (United States), Series G	Developer of FRC nuclear fusion reactors	$1.32B	Goldman Sachs, Vulcan Capital & 20 others	66/100
4th	Xcimer 2021, Redwood City (United States), Series A	Developer of laser technology for commercial inertial fusion energy systems	$100M	Emerson Collective, Prelude Ventures & 10 others	65/100
5th	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	63/100
6th	Helion 2010, Everett (United States), Series G	Provider of deuterium fuel-based magnetic-nuclear fusion reactor	$1.44B	Mithril, Thrive Capital & 23 others	63/100
7th	SHINE Technologies 2005, Janesville (United States), Series D	Producer of nuclear isotopes using fusion techniques	$654M	Fidelity Investments, Deerfield & 16 others	62/100
8th	Proxima Fusion 2023, Munich (Germany), Series A	Developer of fusion power plants	$211M	XTX Ventures, UVC Partners & 43 others	62/100
9th	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
10th	First Light Fusion 2011, Oxford (United Kingdom), Series C	Pulse-powered nuclear fusion process developer	$139M	Oxford Science Enterprises, Hostplus & 12 others	59/100