Xcimer
formerly Xcimer EnergyXcimer is a clean energy company in Denver, United States, founded in 2022. It has raised $102.5M across 2 rounds, most recently a $100.0M Series A in June 2024.
Laser Fusion Leader
- Headquarters
- Denver, Colorado
- Employees
- 51–200
- Founded
- 2022
- Business Model
- B2G
- Website
- xcimer.energy
- Total Funding
- $102.5M
- Last Round
- $100.0M Series AJun 2024
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 2 funding rounds and 6 investors for this company. The full record is or through the API.
About
Xcimer Energy is an inertial fusion energy company that combines novel excimer-based laser technology with proven science to accelerate the commercial deployment of fusion power. Founded in 2022 and headquartered in Denver, Colorado, the company is developing the world's highest-energy laser system — designed to produce up to 10 times higher laser energy at 10 times higher efficiency and over 30 times lower cost per joule than the National Ignition Facility laser. The company was selected for a $9 million award from the U.S. Department of Energy's Milestone-Based Fusion Development Program. In June 2024, Xcimer raised a $100 million Series A round led by Hedosophia, with participation from Breakthrough Energy Ventures, Lowercarbon Capital, Prelude Ventures, and Emerson Collective. In June 2026, the company activated Phoenix, the world's largest privately owned laser.
Summary
It lists 51–200 employees. It has raised $102.5M in total across 2 rounds, most recently a $100.0M Series A round in Jun 2024. Investors include Hedosophia, Wireframe Ventures and Prelude Ventures.
Tech & App Stack
4 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding History
Jun 2024
Sign up to see all 2 events
Funding: Seed through Series A. Amounts, valuations, and investors where available.
Investors
Similar Companies
AI infrastructure company building renewable-powered data centers and cloud compute optimized for...
Home battery and energy company that provides distributed power storage to reinforce the electric...

TAE Technologies is a fusion power company developing the most sustainable and economically compe...
Nuclear fusion energy company building the world's first commercial fusion power plant; has a 50 ...
Appears in
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/xcimer"><img src="https://indexed.vc/api/badge/company/xcimer" alt="Xcimer on Indexed.vc" width="260" height="76" /></a>
