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Atomarine

YC S26

Boston, US · Founded 2026 · 2 employees · 32 known investors

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Ato Marine builds floating offshore platforms for high-performance computing and AI data centers, using standalone power generation and closed seawater cooling for location-agnostic deployment. The units are constructed in shipyards, towed to site, and moored together, with power supplied by adjacent vessels running on natural gas and, later, compact marine reactors.

Advanced ManufacturingCleantechData & InfrastructureEnergyHard TechUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (S26)

Atomarine was founded in 2026 by Emile Germonpre and Dimitris Koutentakis.

EGEmile Germonpre
Emile GermonpreCo-FounderEmile Germonpre is co-founder of Atomarine (YC S26), which builds floating offshore platforms for high-performance computing and AI data centers with standalone power and closed seawater cooling. He holds a PhD in nuclear engineering and an MSc in chemical engineering, and was a Fulbright Scholar and valedictorian of Ghent University's engineering school.
DKDimitris Koutentakis
Dimitris KoutentakisCo-Founder & CEODimitris Koutentakis is co-founder and CEO of Atomarine, which builds floating offshore platforms for high-performance computing and AI data centers with standalone power and closed seawater cooling. A graduate of MIT with an undergraduate degree, an MEng in EECS, an MS in mechanical engineering, and an MBA from Sloan, he previously worked in quantitative research on trade execution and broker selection at Arrowstreet Capital and designed optimization models for electric fleet charging at Amazon.

Investors · 32

Scribble Ventureslisted by Scribble VenturesPortola Valley · $750K – $1.5M

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SurgePoint Angellisted by SurgePoint AngelNew York

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Y Combinatorlisted by Y CombinatorSan Francisco · $500K

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Zero Indexlisted by Zero Index

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Alumni VenturesreportedManchester · $100K – $10M

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Andreessen HorowitzreportedMenlo Park · $500K – $50M

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AudaciousreportedSan Francisco

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Batch Venturesreported

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Blast.Clubreported$5.5M

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Blue Lionreported

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Copperplate Capital LLCreportedPalo Alto

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Doomers Media LLCreported

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Exit Venturesreported

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Forewordreported$250K

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GaingelsreportedNew York · $200K – $500K

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Geek VenturesreportedNew York · $200K – $800K

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Great Wave VenturesreportedNew York · $250K – $1M

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Greater Venturesreported

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Liquid VenturesreportedSan Francisco · $250K – $5M

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Mergus VenturesreportedSão Paulo · $100K – $1M

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Pantera CapitalreportedSan Francisco · $5M – $100M

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PioneerreportedToronto, Ontario

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Rice CapitalreportedCovina

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Seven Seven SixreportedPalm Beach Gardens · $500K – $5M

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Soma CapitalreportedSacramento · $100K – $300K

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Spot VCreportedNewark

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Sterling RoadreportedSan Francisco · $25K – $150K

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The E14 FundreportedCambridge · $1M – $5M

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Transpose Platform ManagementreportedSan Francisco

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Venture Investment AssociatesreportedPeapack

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Ventures TogetherreportedLondon · $50K – $250K

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Related companies · 4

Maritime FusionMaritime Fusion designs and builds zero-emission fusion reactors for deployment in maritime transport and remote energy installations. The company aims to use these off-grid applications as a pathway to develop cost-competitive grid-scale fusion reactors.
NODI EnergyPWR Matrix develops simplified power delivery architectures and semiconductor innovations to improve energy efficiency for advanced applications including AI infrastructure and electronics.
Salem Robotics IncSalem Robotics develops autonomy software for robotic radiological surveys and inspections in nuclear and hazardous environments. The platform automates route planning, radiation measurement collection, and compliance reporting on existing robot hardware to reduce worker exposure and improve data consistency.
Helion EnergyHelion develops fusion energy systems designed to generate clean electricity for commercial use. The company builds pulsed magnetic fusion prototypes with applications for industrial and commercial electricity generation.

Companies working in the same space as Atomarine.

Legal entities · 1

corporate structure
Atomarine, Inc.

In the news

Atomarine: Floating Nuclear Data Centersycombinator.com · Jul 2026

Frequently asked questions

What does Atomarine do?
Ato Marine builds floating offshore platforms for high-performance computing and AI data centers, using standalone power generation and closed seawater cooling for location-agnostic deployment. The units are constructed in shipyards, towed to site, and moored together, with power supplied by adjacent vessels running on natural gas and, later, compact marine reactors.
Who founded Atomarine?
Atomarine was founded by Emile Germonpre, Dimitris Koutentakis in 2026.
Who are Atomarine's investors?
Atomarine's investors include Lyra Capital Pty Ltd, Scribble Ventures, SurgePoint Angel, Y Combinator, Zero Index, Alumni Ventures, Andreessen Horowitz, Audacious and 24 more.
Where is Atomarine headquartered?
Atomarine is headquartered in Boston, US.