New CPO to join the Submer team at SC25 in St. Louis, November 16-21, 2025
St. Louis – Nov 13, 2025 – Submer, a market leader in AI datacenter infrastructure, is announcing the appointment of Jean-Marc Denis as Chief Product Officer (CPO). Jean-Marc will lead the development and execution of Submer’s global product roadmap, driving technical excellence across the company’s datacenter infrastructure product portfolio.
A renowned High-Performance Computing (HPC) expert with more than three decades of experience, Jean-Marc has been at the forefront of building some of the world’s most advanced supercomputing systems. Before joining Submer, he led HPC/AI Cloud Solutions at Viridien, following senior roles at Atos, Silicon Graphics, Compaq, Sun Microsystems, Hewlett-Packard and Bull, where he launched its HPC business in 2004. His appointment marks a key step in Submer’s continued evolution to a full-stack provider of sustainable, high-performance datacenter infrastructure for the AI era.
“There’s never been a more exciting time to join Submer,” said Jean-Marc Denis. “Submer’s growth is remarkable. The company has evolved from an immersion liquid cooling technology provider into a true end-to-end datacenter partner, uniquely positioned to define how AI-ready infrastructure is designed and built.”
“Jean-Marc is a veteran in high-performance computing and product leadership,” added Patrick Smets, CEO of Submer. “His experience brings new strength and momentum to our end-to-end offering for AI datacenters. We’re thrilled to welcome him to the team and look forward to the impact he’ll have in shaping Submer’s next phase of growth.”
With active projects across Europe, North America, the Middle East, and Asia, Submer’s end-to-end capabilities, from concept design and thermal architecture to on-site deployment, position the company as a trusted advisor and delivery partner for organizations seeking rapid and high-performance AI datacenter infrastructure.
With Jean-Marc’s appointment, Submer reinforces its commitment to delivering datacenters that make sense, helping the world’s most advanced organizations achieve scalable performance in today’s AI driven world.
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About Submer Submer is a global leader and trusted advisor in liquid-cooled digital infrastructure, delivering fully integrated solutions for sustainable, high-performance datacenters. From advanced liquid cooling technologies to full-stack design, build and AI-ready operations, Submer enables organizations to scale digital workloads efficiently and responsibly.
Submer’s mission is to create Datacenters That Make Sense – driving a fairer, more efficient and planet-friendly datacenter industry. Since 2015, Submer has empowered datacenters worldwide to harness the benefits of liquid cooling for a wide range of applications, including AI, HPC, hyperscale, enterprise, edge and emerging workloads.
In 2025, the company expanded its solutions framework to deliver turnkey support across the entire datacenter lifecycle. From chip to facility, Submer delivers liquid-cooled AI factories and future-ready datacenters that scale smarter, run cleaner and cost less. Visit our website at www.submer.com
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