newcleo
Developing Lead Fast SMRs to provide the world with a safe, stable power source and reduce volumes of radioactive waste
576 employees · est. 2021 · Paris, France
THORIZON is the older company (2021 vs 2018); newcleo is the larger of the two.
Side-by-Side Comparison
| Metric | newcleo | THORIZON |
|---|---|---|
| Founded | ||
| Founded | 2021 | 2018 older |
| Headquarters | ||
| Headquarters | Paris, France | Amsterdam, The Netherlands |
| Employees | ||
| Employees | 576 larger | 46 |
| Industry | ||
| Industry | Energy, Clean Energy | Not tracked yet |
| Funding Stage | ||
| Funding Stage | Unknown | Unknown |
| Total Funding | ||
| Total Funding | $648.00M | $38.50M |
| Funding Rounds | ||
| Funding Rounds | 5 | 5 |
| Services | ||
| Services | data analysis, user behavior tracking, privacy and consent management | Development of Modular Nuclear Reactors, Power Generation and High Temperature Heat Provision, Research and Development in Nuclear Technology, Partnerships for Reactor Manufacturing and Deployment |
| Target Customers | ||
| Target Customers | website administrators, businesses with online presence, companies interested in data-driven decisions | Industries Seeking Reliable Baseload Power, Data Centers Requiring Stable Energy Solutions, Partners in Energy and Manufacturing Sectors |
| Taxonomy | ||
| Taxonomy | Lead-Cooled Fast Reactors, Small Modular Reactors, Nuclear Energy Innovation, Closed Nuclear Fuel Cycle, Mixed Oxide Fuel Manufacturing, Radioactive Waste Recycling, Advanced Modular Reactors, Gen-IV Nuclear Technology, Liquid Lead Cooling, Nuclear Waste Management, Energy Technology Development, Low Carbon Energy Solutions, Nuclear Engineering, Reprocessed Nuclear Fuel, Nuclear Supply Chain Development | Nuclear Energy, Molten Salt Reactors, Nuclear Waste Management, Clean Energy, Energy Transition, Decarbonisation, Thorium Reactors, Safe Nuclear Design, Modular Reactor Technology, Innovative Energy Solutions, Circular Energy Systems, Radioactive Waste Reduction, Renewable Energy Technology |
| Website | ||
| Website | newcleo.com | thorizon.com |
About newcleo
newcleo, founded in 2021 and headquartered in France, is rapidly emerging as a leader in the nuclear energy sector. Their slogan, "Developing Lead Fast SMRs to provide the world with a safe, stable power source and reduce volumes of radioactive waste," encapsulates their innovative approach. The com...
About THORIZON
THORIZON is at the forefront of utilizing nuclear waste as a sustainable energy source. Founded in 2018, the company is revolutionizing the energy sector with its innovative use of a modular molten salt reactor, termed the Thorizon One. This technology addresses a critical environmental issue by tra...
We will tell you when either one moves
BounceWatch watches newcleo and THORIZON for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at newcleo and THORIZON — by email.
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Compiled from the BounceWatch company index. We last looked at newcleo on 2 Mar 2026, and THORIZON on 21 May 2026. 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.