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The ambitious vision of bringing portable nuclear microreactors to the masses just got a significant financial boost. Radiant, the company developing the world’s first mass-produced units, has raised $465.0M to further its development.
Founded in 2020, Radiant is building Kaleidos, a 1 MW failsafe microreactor designed for transport to any location needing power. The company plans to test its first reactor in 2026, with initial customer deployments beginning in 2028.
Global nuclear capacity is projected to more than double by 2050, with investment in the nuclear value chain expected to reach $2.2tn. The renewed interest is being driven by net zero targets, electricity demand from data centres, and a sharper focus on energy security after recent supply shocks.
In the US, executive orders aim to expand nuclear capacity from 100GW to 400GW by 2050, with 10 new large reactors under construction by 2030. The start-up market is moving in parallel. Radiant has raised $465mn across two recent funding rounds for 1MW nuclear microreactors, while Germany’s Proxima Fusion has raised €200mn to build a stellarator coil by 2027. China is also investing heavily, with
Enkrypt AI
Achieve AI security and safety with a platform that detects threats, removes vulnerabilities, and monitors performance for continuous insights.
$2.4M Seed
today
Verta
Verta is a Palo Alto-based startup building software infrastructure to help enterprise data science and machine learning (ML) teams rapidly develop and deploy ML models. The Verta platform builds upon pioneering research at MIT CSAIL on ModelDB, the first open-source model management system, currently used at Fortune 500 companies. Verta’s technology extends ModelDB to support the entire modeling lifecycle including model training, deployment, and governance.
$10.0M Series a
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Foundation Alloy
Come work with us: https://foundation-alloy.rippling-ats.com/ Foundation Alloy integrates proprietary alloy design technology from MIT and UC Irvine, advanced manufacturing and automation to recast the metal parts manufacturing industry. FA metals can be fabricated into parts with less time, less energy, and better outcomes than legacy materials, and have superior mechanical properties than the current state of the art. By focusing on scalable, quality manufacturing, FA will provide the performance and production efficiency, flexibility & reliability necessary to unlock the next generations of industrial products. Backed by The Engine, Material Impact, Safar Partners and a host of others.
$22.0M Series a
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Namely
Namely is the HR, Payroll, and Benefits platform your employees will love. Finally, there’s HR software that employees actually use—built to fit your company culture. Manage all of your HR data in one place, with personalized service to help your company get better, faster. Namely is used by some of the world’s most innovative and exciting companies in media, technology, commerce, and more.
$60.0M Series e
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Atom Computing
We build scalable quantum computers with atomic arrays that empower our customers to achieve computational breakthroughs.
$100.0M Series c
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Largest funding rounds in Energy on Signalbase right now.
| # | Company | Round | Amount | Date |
|---|---|---|---|---|
| 1 |  Sunrun United States | Unknown | $11.0B | 1y ago |
| 2 |  Aurora Energy Research United Kingdom | Unknown | €9.5B | 1y ago |
| 3 |  GB Energy United Kingdom | Unknown | £8.3B | 1y ago |
| 4 |  Fuse Energy United Kingdom | Series b | $5.0B | 5mo ago |
| 5 |  Elcogen Estonia | Unknown | €4.8B | 1y ago |
Companies that recently closed a Unknown round.
| # | Company | Round | Amount | Date |
|---|---|---|---|---|
| 1 |  Zenobē United Kingdom | Unknown | $520.0M | today |
| 2 |  Crowdz United States | Unknown | $10.0M | today |
| 3 |  ACTIVE Network United States | Unknown | $88.2K | today |
| 4 |  Cresco Belgium | Unknown | $60.0M | today |
| 5 |  BuildingIQ, Inc. United States | Unknown | $730.5K | today |
