Atomarine Raises $19 Million for Floating Nuclear Data Centers

Nov 11, 2026
Atomarine raised $19 million to develop floating data centers powered by nuclear reactors mounted on ships. It plans an initial deployment in 2031 or 2032.

Atomarine raised $19 million in a seed round led by Y Combinator, according to Data Center Dynamics. Pantera Capital, Soma Capital, Seven Seven Six, Liquid 2 Ventures, Audacious Ventures and E14 Fund also participated.

The Cambridge, Massachusetts startup plans to install small modular nuclear reactors on ships that supply power to floating data center platforms. Each nuclear ship could eventually provide 150 MW, enough to support two platforms.

Atomarine plans to use natural gas generators until commercial reactors become available and receive regulatory approval. The company targets its first deployment in 2031 or 2032, and will use the funding to hire engineers in naval architecture, nuclear systems and data center design.

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