About X Energy
X Energy is a company based in Greenbelt (United States) founded in 2010 by Kam Ghaffarian.. X Energy has raised $1.53 billion across 13 funding rounds from investors including Ares Management, Gov.uk and University of Michigan. The company has 246 employees as of December 31, 2022. X Energy offers products and services including Xe-100, Xe-Mobile, and TRISO-X. X Energy operates in a competitive market with competitors including BWX Technologies, Helicity Space, Jimmy, Pulsar Fusion and Space Nuclear Power Corporation, among others.
- Headquarter Greenbelt, United States
- Employees 246 as on 31 Dec, 2022
- Founders Kam Ghaffarian
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Sectors
Aerospace, Defense & MaritimeEnergy & Utilities
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Phone
*********
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Website
*********
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Social
*********
- Legal Name X Energy, Llc
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Annual Revenue
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Net Profit
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EBITDA
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Total Equity Funding
$1.53 B (USD)
in 13 rounds
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Latest Funding Round
$700 M (USD), Series D
Nov 24, 2025
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Investors
Ares Management
& 21 more
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Employee Count
246
as on Dec 31, 2022
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Products & Services of X Energy
X Energy offers a comprehensive portfolio of products and services, including Xe-100, Xe-Mobile, and TRISO-X. The company's diverse product and service offerings are designed to meet the evolving needs of its customers, address market demands, and provide comprehensive solutions that drive value creation and customer satisfaction across various segments and use cases.
Advanced reactor with passive safety for clean energy production.
Portable reactor for flexible energy applications.
High-temperature fuel for extreme condition reactors.
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Software Development Team
29 people
Leadership Team
20 people
Creative and Marketing Team
8 people
Project Team
6 people
Senior Team
5 people
Data Analysis and Operations Team
4 people
Legal and Compliance
4 people
Finance and Accounting
4 people
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Funding Insights of X Energy
X Energy has successfully raised a total of $1.53B across 13 strategic funding rounds. The most recent funding activity was a Series D round of $700 million completed in November 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding Total Funding
- Total Rounds 13
- Last Round Series D — $700.0M
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First Round
First Round
(15 Jan 2016)
- Investors Count 22
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Nov, 2025 | Amount | Series D - X Energy | Valuation | Jane Street | |
| Jun, 2025 | Amount | Series C - X Energy | Valuation |
investors |
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| Mar, 2025 | Amount | Private Equity Round - X Energy | Valuation |
investors |
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jul, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Jan, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
Investors in X Energy
X Energy has secured backing from 22 investors, including venture fund, institutional, and angel investors. Prominent investors backing the company include Ares Management, Gov.uk and University of Michigan. This diverse investor base provides strategic capital, industry expertise, and valuable network connections that support the company's growth initiatives, market expansion, and long-term value creation.
| Investor | Description | Founded Year | Domain | Location |
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Investment opportunities in emerging industries are focused on by Sporos.
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Founded Year | Domain | Location | |
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Alternative asset investment management firm
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Founded Year | Domain | Location | |
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A global initiative focused on net-zero carbon emissions by 2040 through company commitments.
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Founded Year | Domain | Location |
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
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Single family office of Amitabh Bachchan, founder of Amitabh Bachchan Corporation or AB CORP
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Founded Year | Domain | Location | |
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Startup ecosystems are ignited through strategic investments by Signite Partners.
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Founded Year | Domain | Location | |
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Venture capital is directed toward companies in multiple sectors.
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Founded Year | Domain | Location | |
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Venture capital is invested in cybersecurity, fintech, and AI startups.
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Founded Year | Domain | Location |
Investments & Acquisitions by X Energy
| Company Name | Description | Domain | Location | Founded Year | Amount |
|---|---|---|---|---|---|
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Bionic investment advisor platform
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2016 | ||||
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Fine Asian gourmet food is offered by an internet-first restaurant.
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2016 | ||||
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Physical e-commerce kiosks are deployed for rural purchases in Indonesia.
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2014 | ||||
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Fine Asian gourmet food is offered by an internet-first restaurant.
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2016 |
Financial Statements - X Energy
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jul, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Jan, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
X Energy Comparisons
Competitors of X Energy
X Energy operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as BWX Technologies, Helicity Space, Jimmy, Pulsar Fusion and Space Nuclear Power Corporation, among others. This competitive environment drives innovation, market differentiation, and strategic positioning as companies strive to capture market share and deliver value to their customers. Understanding the competitive dynamics is crucial for assessing market positioning, identifying growth opportunities, and navigating the challenges inherent in a competitive marketplace.
| Company Name | Domain | Founded year | HQ Location | Description |
|---|---|---|---|---|
| domain | founded_year | HQ Location |
Nuclear energy technology solutions are developed and provided globally.
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Reusable rocket engines powered by nuclear fusion are manufactured.
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| domain | founded_year | HQ Location |
Batteries are manufactured by Jimmy in France since 2021.
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| domain | founded_year | HQ Location |
Plasma-propelled nuclear fusion energy systems are developed and provided.
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| domain | founded_year | HQ Location |
Provides nuclear reactors for space missions, surface power, and energy needs in harsh environments.
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| Company Name | Domain | Founded year | HQ Location | Description |
|---|---|---|---|---|
| domain | founded_year | HQ Location |
Multiple services are booked via an app-based platform.
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| domain | founded_year | HQ Location |
On-demand services are booked through an app-based platform.
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| domain | founded_year | HQ Location |
App based platform offering on demand delivery and ride-hailing services
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| domain | founded_year | HQ Location |
Operates an on-demand hyperlocal delivery app for food and groceries.
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Latest news on X Energy
Frequently Asked Questions about X Energy
When was X Energy founded?
X Energy was founded in 2010 and raised its 1st funding round 6 years after it was founded.
Where is X Energy located?
X Energy is headquartered in Greenbelt, United States. It is registered at Greenbelt, Maryland, United States.
Who is the current CEO of X Energy?
J. Clay Sell is the current CEO of X Energy.
Is X Energy a funded company?
X Energy is a funded company, having raised a total of $1.53B across 13 funding rounds to date.
How many employees does X Energy have?
As of Dec 31, 2022, the latest employee count at X Energy is 246.
What does X Energy do?
X Energy was founded in 2010 and is based in Greenbelt, United States. Operations focus on the nuclear energy sector, where small modular reactors and high-temperature gas-cooled designs are developed using tri-structural isotropic particle fuel. Pebble bed reactors are also offered, alongside services in zero-emission energy production, neutronics analysis, and nuclear engineering. Activities support advancements in clean power generation.
Who are the top competitors of X Energy?
X Energy's top competitors include BWX Technologies, Helicity Space and Pulsar Fusion.
What products or services does X Energy offer?
X Energy offers Xe-100, Xe-Mobile, and TRISO-X.
Who are X Energy's investors?
X Energy has 22 investors. Key investors include Ares Management, Gov.uk, University of Michigan, DOE, and Jane Street.
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