Total amount raised
$985.2 Million
Latest funding date
03/01/2025
Location
X-energy has successfully raised funds over 9 rounds, with the latest being a $700 million Series D financing round. The company is backed by 26 investors, including Point72, ARK Investment Management, and Jane Street Capital.
Keep reading to explore the intricacies of X-energy's fundraising journey and the investors backing this innovative platform.
What Is X-energy?
X-energy is a nuclear energy company based in Rockville, Maryland, specializing in the development of small modular nuclear reactors and advanced nuclear fuels. The company operates within the clean energy, cleantech, energy, nuclear, and renewable energy sectors.
With an employee count ranging between 501 and 1000, X-energy focuses on creating reactors that emphasize safety and efficiency. Their reactors, such as the Xe-100, are designed to shut down passively, ensuring safe operation without the need for active systems or human intervention.
How Much Funding Has X-energy Raised?
- Series D
- Amount Raised: USD 700,000,000
- Date: November 2025
- Lead Investors: Jane Street Capital
- Valuation at Round: Not publicly disclosed
- Motivation Behind the Round: To scale operations and further develop their advanced nuclear reactors.
- Private Equity
- Amount Raised: USD 22,796,720
- Date: March 2025
- Lead Investors: Pittco Management
- Valuation at Round: Not publicly disclosed
- Motivation Behind the Round: To support ongoing projects and expand their market reach.
- Series C
- Amount Raised: USD 700,000,000
- Date: October 2024
- Lead Investors: Alumni Ventures, Climate Pledge Fund
- Valuation at Round: Not publicly disclosed
- Motivation Behind the Round: To complete reactor design and licensing, and support future carbon-free projects.
- Grant
- Amount Raised: USD 4,000,000
- Date: April 2024
- Lead Investors: Department for Energy Security & Net Zero
- Valuation at Round: Not publicly disclosed
- Motivation Behind the Round: To fund research and development in nuclear energy.
- Series C
- Amount Raised: USD 235,000,000
- Date: December 2023
- Lead Investors: Ares Management, Kam Ghaffarian
- Valuation at Round: Not publicly disclosed
- Motivation Behind the Round: To accelerate the development of their small modular reactors.
- Grant
- Amount Raised: USD 40,000,000
- Date: August 2022
- Lead Investors: US Department of Energy
- Valuation at Round: Not publicly disclosed
- Motivation Behind the Round: To support the development of advanced nuclear fuel technology.
- Series B
- Amount Raised: Not publicly disclosed
- Date: October 2021
- Lead Investors: Not publicly disclosed
- Valuation at Round: Not publicly disclosed
- Motivation Behind the Round: To expand their technological capabilities and market presence.
- Grant
- Amount Raised: USD 6,000,000
- Date: May 2020
- Lead Investors: Not publicly disclosed
- Valuation at Round: Not publicly disclosed
- Motivation Behind the Round: To fund early-stage research and development.
- Seed
- Amount Raised: Not publicly disclosed
- Date: January 2015
- Lead Investors: Not publicly disclosed
- Valuation at Round: Not publicly disclosed
- Motivation Behind the Round: To kickstart the company's initial projects and research.
X-energy has raised a total of USD 1,710,796,720. The current valuation is Not publicly disclosed.
Key Investors
- Jane Street Capital
- Details: Jane Street Capital is a global proprietary trading firm that operates in a wide range of financial markets. They are known for their quantitative trading strategies and significant market presence.
- Investment Focus Areas: Financial markets, quantitative trading, technology.
- Notable Investments: X-energy, various proprietary trading ventures.
- Pittco Management
- Details: Pittco Management is a private investment firm that focuses on long-term investments in various sectors. They are known for their strategic investments and management expertise.
- Investment Focus Areas: Private equity, technology, energy.
- Notable Investments: X-energy, various private equity ventures.
- Alumni Ventures
- Details: Alumni Ventures is a venture capital firm that invests in high-growth startups. They leverage their network of alumni from top universities to identify and support promising companies.
- Investment Focus Areas: Technology, healthcare, consumer products.
- Notable Investments: X-energy, various high-growth startups.
- Climate Pledge Fund
- Details: The Climate Pledge Fund is an investment initiative by Amazon aimed at supporting companies that develop sustainable technologies. The fund is part of Amazon's broader commitment to achieving net-zero carbon emissions by 2040.
- Investment Focus Areas: Sustainability, clean energy, carbon reduction.
- Notable Investments: X-energy, various sustainability-focused startups.
- Ares Management
- Details: Ares Management is a global alternative asset manager that offers investment solutions across credit, private equity, and real estate. They are known for their diversified investment strategies and strong market presence.
- Investment Focus Areas: Credit, private equity, real estate.
- Notable Investments: X-energy, various alternative asset ventures.
What's Next for X-energy?
X-energy stands on the brink of significant growth, driven by the completion of its reactor design and the development of the TRISO-X fuel fabrication facility. Collaborating with Amazon, the company aims to bring over 5 gigawatts of new power projects online across the United States by 2039. This partnership includes an initial four-unit 320-megawatt project, with potential expansion to 12 units and 960 MW.
Future fundraising opportunities are likely as X-energy seeks to support the expansion of these projects. However, the company may face regulatory and technical challenges, as well as competition from other clean energy technologies. Despite these hurdles, X-energy's focus on advanced small modular nuclear reactors positions it well for future success.
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