Xcimer Energy
XE
XC

Xcimer Energy

Measured by AhrefsDR1Ahrefs DR: 1/100. Bottom 25%. Measured by Ahrefs. Median 44.Measured by Google PageSpeedSpeed56Site Speed: 56/100. Below median. Measured by Google PageSpeed. Median 62.Measured by StartupHub.aiTrust85Data Trust: 85/100. Top 25%. Measured by StartupHub.ai. Median 61.

Fusion startup developing a commercial fusion power plant.

2021InactiveLivermore, United States

About

Xcimer Energy is a fusion energy startup focused on developing a commercial fusion power plant. Their approach is modeled after the National Ignition Facility (NIF) and utilizes powerful excimer lasers, specifically krypton-fluoride lasers, to achieve controlled fusion reactions. The company aims to leverage more powerful and less complex lasers to make fusion power profitable.

Key facts

Website
xcimerenergy.com
Headquarters
Livermore, United States
Founded
2021
Total funding
$10M (Seed)
Business model
B2B

Funding rounds

Funding rounds raised by Xcimer Energy
DateRoundAmountLead investors
1 Jan 2023Seed$10MBreakthrough Energy Ventures

Tech stack

Detected on xcimerenergy.com, last scanned 3 Jun 2026.

Compliance
GDPR, CCPA
Frontend
jQuery
Analytics
Google Analytics 4, Google Tag Manager
SEO
Yoast SEO
CMS / Builders
WordPress
CDN
Cloudflare
Hosting
AWS

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Frequently asked

What does Xcimer Energy do?

They have recently activated their 'Phoenix' laser system, which they claim is the largest privately owned laser in the world. Xcimer plans to complete a prototype in 2028, followed by a larger system, with the goal of building its first commercial-scale power plant in the mid-2030s.

Is Xcimer Energy trustworthy and reputable?

StartupHub's Data Trust & Reputation score for Xcimer Energy is 85 out of 100, a trusted rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.

How much funding has Xcimer Energy raised?

Xcimer Energy has raised a total of $10M in funding. The most recent round on record is Seed.

What is Xcimer Energy's current status?

Xcimer Energy's current operating status is: Inactive.

Public record

SEC filings, insider activity, nonprofit links and pay benchmarks for Xcimer Energy