newcleo is a private UK based company founded in 2021 to create a disruptive new approach to extracting energy from Nuclei that is completely safe, clean, renewable and technologically accessible.
newcleo is building the next generation of nuclear energy working on: (1) eliminate the need for geological repositories by using a fast neutron flux avoiding production of long Life radioactive elements such plutonium and MA; (2) develop Accelerator Driven System (ADS), based on the intrinsically safe coupling of a particle accelerator and a sub-critical reactor; (3) accelerate the development of new fuel cycles, including thorium, that provide economic, clean, safe and inexhaustible energy from nuclei and the opportunity to burn the long-lived nuclear waste produced by the old generation of nuclear reactors.
Founded by a number of visionary co-founders, Newcleo has a team of expert engineers designing an innovative micro Lead Fast Reactor as a first step toward the evolution of an industry respectful of people and the environment. Newcleo seeks young talented people to grow its community of energy innovators.
newcleo is building the next generation of nuclear energy working on: (1) eliminate the need for geological repositories by using a fast neutron flux avoiding production of long Life radioactive elements such plutonium and MA; (2) develop Accelerator Driven System (ADS), based on the intrinsically safe coupling of a particle accelerator and a sub-critical reactor; (3) accelerate the development of new fuel cycles, including thorium, that provide economic, clean, safe and inexhaustible energy from nuclei and the opportunity to burn the long-lived nuclear waste produced by the old generation of nuclear reactors.
Founded by a number of visionary co-founders, Newcleo has a team of expert engineers designing an innovative micro Lead Fast Reactor as a first step toward the evolution of an industry respectful of people and the environment. Newcleo seeks young talented people to grow its community of energy innovators.
Location: France
Employees: 51-200
Total raised: $85M
Founded date: 2021
Investors 6
| Date | Name | Website |
| 20.12.2021 | Exor | exor.com |
| - | Feel Ventu... | feelventur... |
| - | LIFTT | liftt.com |
| - | NovaCapita... | novacapita... |
| - | Indaco Ven... | indacosgr.... |
| - | Elysia Cap... | elysiacapi... |
Funding Rounds 1
| Date | Series | Amount | Investors |
| 08.02.2026 | - | $85M | - |
Mentions in press and media 19
| Date | Title | Description |
| 10.02.2026 | newcleo Secures $85M for Advanced Nuclear Expansion, Targeting Global Clean Energy Market | newcleo secured $85 million in new financing. This bolsters its advanced nuclear technology development. The funds will fuel European R&D and accelerate its U.S. market strategy. newcleo champions Lead-Cooled Fast Reactors (LFRs). They ... |
| 08.02.2026 | newcleo: $85 Million Raised For Advanced Nuclear Developer Platform | newcleo, a European developer of advanced nuclear technologies, announced it has closed an $85 million financing round, bringing total funds raised over the past year to more than $125 million. The company said the latest round raises its t... |
| 06.02.2026 | ElevenLabs raises $500M, Soundtrack acquires Tunify and Ambie, and Germany tops January figures | This week, we tracked more than 70 tech funding deals worth over €1.4 billion and 5 exits, M&A transactions, rumours, and related news stories across Europe. Alongside the week’s top funding rounds, we’ve highlighted the most important ... |
| 04.02.2026 | newcleo Raises USD85M in Financing | newcleo, a Paris, France-based developer of advanced nuclear technologies, raised USD85m in financing. Backers included continued investors Kairos, Indaco Ventures, Azimut Investments, the CERN pension fund, and Walter Tosto, and new invest... |
| 04.02.2026 | Una Software Raises US$13M in Total Funding | Una Software, a Toronto, Canada-based AI-powered FP&A software provider, raised an undisclosed amount in Seed funding. Backers were not disclosed. The company also announced the appointment of Michael Morrison, former CEO of Fluence Tec... |
| 04.02.2026 | 10 прорывных разработок 2026 года по версии MIT Technology Review | Каждый год журнал Массачусетского технологического института MIT Technology Review публикует список из десяти технологий, которые, по мнению редакции, определят ближайшее будущее. Это не рейтинг «самых модных» идей и не попытка оседлать хай... |
| 31.07.2025 | What will it take for nuclear to meet AI's surging energy demands? | Europe is entering a new chapter in which nuclear power is no longer just about climate targets or energy security, but a critical enabler for AI. In February French President Macron touted France’s clean, reliable nuclear energy as a key d... |
| 04.03.2025 | The state of gender diversity in European startups: Female Innovation Index 2025 | Today sees the launch of the Female Innovation Index 2025 launched by Female Foundry. The Index is Europe's largest report on the funnel of innovation and funding driven by female entrepreneurs, in partnership with over thirty-five private ... |
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| 08.01.2025 | Looking ahead: What can we learn from 2024? | In a New Year's edition of the Tech.eu podcast, the team dissected the most significant trends that shaped technology across Europe in 2024. Though the funding pipeline continued to recover, Cate characterised 2024 as a "year of resili... |
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