About TerraPower
TerraPower is a company based in Bellevue (United States) founded in 2006. TerraPower has raised $1.46 billion across 8 funding rounds from investors including ArcelorMittal, Khosla Ventures and DOE. The company has 299 employees. TerraPower offers products and services including Natrium Reactor and Isotopes. TerraPower operates in a competitive market with competitors including NuScale Power, Newcleo, X Energy, Oklo and Westinghouse Electric, among others.
- Headquarter Bellevue, United States
- Employees 299
- SectorsEnergy & Utilities
- Website category Heavy Industry and Engineering · Energy Industry
- Website terrapower.com
- Social LinkedIn X Facebook
- Legal Name Terrapower, Llc
- Total Equity Funding$1.46B (USD)
in 8 rounds
- Latest Funding Round$650M (USD), Series D
Jun 2025
- InvestorsArcelorMittal
& 6 more
- Employee Count299
Products & Services of TerraPower
TerraPower offers a comprehensive portfolio of products and services, including Natrium Reactor and Isotopes.
Advanced reactor using liquid metal for efficient and safe power generation.
Isotopes for precision medicine in cancer treatment processes.
Funding Insights of TerraPower
TerraPower has successfully raised a total of $1.46B across 8 strategic funding rounds. The most recent funding activity was a Series D round of $650 million completed in June 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 $1.46B
- Total Rounds 8
- Last Round Series D — $650M
- Investors Count 7
All 8 funding rounds of TerraPower with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jun 2025 | $650M | Series D | – | – | |
| Nov 2022 | $25M | Series C | – | ArcelorMittal | – |
| Aug 2022 | $750M | Series C | – | SK | – |
| Mar 2022 | $8.55M | Grant | – | – | |
| Oct 2020 | $80M | Grant | – | – | |
| Jun 2010 | $35M | Series B | – | – | |
| Dec 2008 | – | Series A | – | – | |
| Jan 2008 | – | Angel Round | – | – | – |
7 investors in total: 7 institutional.
Investors in TerraPower
TerraPower has secured backing from 7 investors, including institutional and venture fund investors. Prominent investors backing the company include ArcelorMittal, Khosla Ventures and DOE.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
A South Korean conglomerate, SK Inc. is engaged in advanced materials, biotechnology, and digital solutions. | – | sk-inc.com | Seoul, South Korea | |
CRV is recognized as a venture capital firm investing in technology startups. | – | crv.com | Palo Alto, United States | |
Early-stage startups are funded by this venture capital firm. | 2004 | khoslaventures.com | Menlo Park, United States | |
Venture capital arm of Nvidia | – | nventures.ai | Santa Clara, United States | |
Manufacturer & supplier of steel products and iron ore mining materials | 1976 | arcelormittal.com | United States | |
Energy sources and policies are managed by the DOE. | 1977 | energy.gov | - | |
HD Hyundai is engaged in shipbuilding and heavy machinery production. | – | hd-hyundai.com | Seoul, South Korea |
Investor details for TerraPower
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
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People of TerraPower
109 people are tracked at TerraPower (22 in leadership, 8 in board & advisors, 79 in team); the tracked headcount is 299.
| Name | Role | Group |
|---|---|---|
Christopher Levesque | CEO | Leadership |
Scott C. | President, Terrapower Isotopes | Leadership |
Steven Hellman | Executive Vice President & Chief Financial Officer | Leadership |
Jeffrey Miller | Vice President Of Business Development | Leadership |
Marcia Burkey | Chief Financial Officer & EVP | Leadership |
Chris Levesque | President & CEO | Leadership |
John Gilleland | Chief Technical Officer | Leadership |
Scott Claunch | President, TerraPower Isotopes Program | Leadership |
Irene Hsieh | VP, Finance & Accounting | Leadership |
George Wilson | VP, Regulatory Affairs & Licensing | Leadership |
Michael Vandevanter | Director Of Technology Development, MCFR | Leadership |
Leslie Stark | Executive Assistant To The President, Terrapower Isotopes | Leadership |
George Piccard | Site Director, Plant Operations, Natrium Demonstration Reactor | Leadership |
Christopher Fendley | Vice President, Commercial Development | Leadership |
Chris Dunckley | Director, Chemistry & Engineering, Terrapower Isotopes | Leadership |
Meaghan Harding | Director, Design Authority | Leadership |
Jessica Harris | Chief Human Resources Officer | Leadership |
Leslie Baker | Associate Director, Financial Planning And Analysis | Leadership |
Ben Goodrich | Director - Terrapower Isotopes | Leadership |
Mark Werner | Vice President, Plant Delivery, Natrium | Leadership |
89 more people are available in the full profile.
Complete people profiles for TerraPower
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
- Team structure
- Board tenure
- Professional contacts
Verified entity values are shown only after access is granted.
Timeline of TerraPower
3 dated milestones of TerraPower across 19 years, from founding to its latest funding, stage changes and deals.
- Founded TerraPower is founded.
- Funding First funding round.
- Funding Latest funding round, Series D, of $650.0M.
Competitors of TerraPower
TerraPower 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 NuScale Power, Newcleo, X Energy, Oklo and Westinghouse Electric, among others.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| nuscalepower.com | 2007 | Portland, United States | $198.15M | 540 | Micro modular nuclear reactors are developed for scalable power generation. | |
| newcleo.com | 2021 | London, United Kingdom | $684.78M | – | Advanced nuclear reactors are designed, built, and operated by Newcleo. | |
| x-energy.com | 2010 | Greenbelt, United States | $829.68M | 246 | Small modular and high-temperature gas-cooled nuclear reactors are developed. | |
| oklo.com | 2013 | Sunnyvale, United States | $120,000 | 2 | Small modular reactors are developed for advanced nuclear energy solutions. | |
| westinghousenuclear.com | 1886 | United States | – | – | Small modular reactors are developed for nuclear power applications. | |
| radiantnuclear.com | 2019 | Los Angeles, United States | $217.96M | 44 | Designer of microreactor technology for power generation and industrial heat | |
| terrestrialenergy.com | 2013 | Oakville, Canada | $117.64M | – | Small modular reactors are developed for integral molten salt technology. | |
| transatomicpower.com | 2010 | Cambridge, United States | $9.23M | – | Small modular reactors are developed for nuclear energy applications. |
Detailed competitors of TerraPower
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
- Operating metrics
- Benchmarks
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Web traffic of TerraPower
The website of TerraPower (terrapower.com) receives about 73K visits a month and ranks #610,615 among all websites worldwide, #9,051 in Energy Industry.
- Monthly visits73K
▲ 31.6% vs previous month
- Unique visitors22.8K
per month
- Global rank#610,615
among all websites
- Category rank#9,051
Heavy Industry and Engineering · Energy Industry
- Bounce rate45%
- Pages per visit2.1
- Average visit55 sec
- DevicesDesktop 51% · Mobile 49%
Websites whose visitors overlap most with TerraPower. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| babcock.com | 100% | 80K | #510,811 | View details | |
| x-energy.com | 97% | 95.3K | #388,468 | View details | |
| pacificorp.com | 90% | 36.4K | #840,254 | View details | |
| utilitydive.com | 90% | 680.7K | #209,460 | View details | |
| powermag.com | 90% | – | #306,848 | View details | |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 9 similar websites and full traffic analytics for TerraPower
The complete similar-websites list, audience overlap and engagement analytics require an active premium plan.
- 9 similar websites
- Audience overlap
- Engagement analytics
- Traffic by brand
Verified entity values are shown only after access is granted.
Latest news on Terrapower
Complete news archive for TerraPower
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
Verified entity values are shown only after access is granted.
Similar companies to TerraPower
10 companies that operate in the same segment as TerraPower (Nuclear & Fusion Energy), ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Developer of energy solutions | 1925 | Juno Beach, Florida, United States | – | USD 26.53 B | 16,800 | |
Fuel and power producer in the nuclear energy sector | 2001 | United States | USD 307.86 M | – | – | |
Clean energy solutions for generation, retail, and heating are provided. | 1998 | Espoo, Finland | – | USD 5.86 B | 4,470 | |
Compact tokamak fusion reactors are developed with superconducting magnets. | 2018 | Cambridge, Massachusetts, United States | USD 3.93 B | – | – | |
Advanced nuclear reactors are designed, built, and operated by Newcleo. | 2021 | London, England, United Kingdom | USD 769.93 M | USD 11.38 M | – | |
Deuterium-based magnetic-nuclear fusion reactors are developed for power generation. | 2010 | Redmond, Washington, United States | USD 1.44 B | – | – | |
Energy corporation | 1903 | Newark, New Jersey, United States | – | USD 12.28 B | 13,050 | |
Energy utilities, natural gas, and communications technology are provided. | 1912 | United States | – | USD 29.55 B | 28,600 | |
FRC nuclear fusion reactors are developed using advanced beam technology. | 1998 | Lake Forest, California, United States | USD 1.32 B | – | – | |
Magnetized nuclear fusion reactors are developed for energy production. | 2002 | Burnaby, British Columbia, Canada | USD 512.93 M | – | – |
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Frequently Asked Questions about TerraPower
TerraPower was founded in 2006 and raised its 1st funding round 2 years after it was founded.
TerraPower is headquartered in Bellevue, United States. It is registered at Bellevue, Washington, United States.
Christopher Levesque is the current CEO of TerraPower.
TerraPower is a funded company, having raised a total of $1.46B across 8 funding rounds to date.
TerraPower has 299 employees.
TerraPower was founded in 2006 and is headquartered in Bellevue, United States. Operations center on the nuclear energy sector, where traveling wave reactors (TWR) are developed to deliver safe, economic low-carbon power for baseload electricity needs. Molten salt reactors (MSR) are also under investigation as an alternative approach. Leadership is provided by CEO Christopher Levesque, with focus maintained on innovative reactor technologies.
TerraPower's top competitors include Newcleo, X Energy and NuScale Power.
TerraPower offers Natrium Reactor and Isotopes.
TerraPower has 7 investors. Key investors include ArcelorMittal, Khosla Ventures, DOE, SK Inc, and CRV.
TerraPower operates through Terrapower, Llc.