Fervo Energy
Delivering 24/7 carbon-free energy through development of next-generation geothermal projects.
216 employees · est. 2017 · Houston, United States
X-energy
Delivering the next generation of advanced nuclear energy technology.
1773 employees · est. 2009 · Rockville, United States
X-energy is the older company (2017 vs 2009); X-energy is the larger of the two.
Side-by-Side Comparison
| Metric | Fervo Energy | X-energy |
|---|---|---|
| Founded | ||
| Founded | 2017 | 2009 older |
| Headquarters | ||
| Headquarters | Houston, United States | Rockville, United States |
| Employees | ||
| Employees | 216 | 1773 larger |
| Industry | ||
| Industry | Not tracked yet | Energy, Renewable Energy, Clean Energy |
| Funding Stage | ||
| Funding Stage | Series E | Series C 1 |
| Total Funding | ||
| Total Funding | $1.01B | $2.78B |
| Funding Rounds | ||
| Funding Rounds | 13 | 12 |
| Services | ||
| Services | Geothermal Energy Generation, Energy Technology Development, Renewable Energy Project Management, Environmental Health and Safety Consulting | Not tracked yet |
| Target Customers | ||
| Target Customers | Data Centers, Electricity Sector Providers, Renewable Energy Investors, Public Sector Supporting Clean Energy, Energy Policy Makers | Not tracked yet |
| Taxonomy | ||
| Taxonomy | Carbon-free Energy, Next-generation Geothermal, Geoscience Innovation, Sustainable Energy Transition, Geothermal Power Development, Drilling Technology, Subsurface Analytics, Cost-competitive Geothermal, Proprietary Technology, Geothermal Asset Ownership, Energy Dispatchability, Clean Energy Future, Renewable Energy Commercialization | Advanced Nuclear Energy, Carbon-free Energy, Nuclear Power Innovation, Clean Energy Technology, Nuclear Fuel Manufacturing, Meltdown Prevention, Waste Management, Nuclear Plant Design, Baseload Power Generation, Safety Innovations, Affordable Energy, Renewable Energy Alternative, Sustainable Energy Solutions |
| Website | ||
| Website | fervoenergy.com | x-energy.com |
About Fervo Energy
Fervo Energy, founded in 2017 and headquartered in the United States, is pioneering in delivering 24/7 carbon-free energy through cutting-edge geothermal projects. With a clear mission to leverage geoscience innovations, Fervo is pivotal in accelerating the shift toward sustainable energy. The compa...
About X-energy
X-energy, founded in 2009, is at the forefront of revolutionizing the energy landscape with its cutting-edge advanced nuclear technology. The company's mission, encapsulated in its slogan "Delivering the next generation of advanced nuclear energy technology," aims to contribute to a carbon-free futu...
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Compiled from the BounceWatch company index. We last looked at Fervo Energy on 2 Mar 2026, and X-energy on 12 Sep 2024. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.