Who is Submer?
Submer is a data center infrastructure company that develops immersion cooling systems and related technologies for IT hardware and high-density computing environments.
- Immersion cooling systems for data centers and High performance computing (HPC) (data center cooling)
- Engineered tanks and enclosures for single-phase immersion-cooled IT hardware (data center hardware infrastructure)
- Cooling and power distribution integration for high-density racks, including Graphics Processing Unit (GPU) and Artificial Intelligence (AI) workloads (AI infrastructure / HPC infrastructure)
- Monitoring, control, and management capabilities for immersion-cooled environments (infrastructure management)
- Consulting and deployment services for planning, installing, and operating immersion cooling in enterprise facilities (professional services)
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More About Submer
Submer focuses on immersion cooling solutions for data centers, HPC clusters, and other high-density IT environments where power and thermal constraints are central design factors. Its systems place IT equipment, including servers and accelerators, in a dielectric fluid within sealed tanks, enabling heat removal through direct contact between components and the cooling medium. The company presents its offerings as an approach to increase rack power density, manage thermal loads for CPU- and GPU-intensive workloads, and reduce reliance on traditional air-based cooling architectures.
The core of Submer’s portfolio centers on immersion cooling hardware (data center cooling), including engineered tanks, frames, and related components that house standard IT hardware adapted for immersion. These systems are generally compatible with conventional data center electrical and networking topologies, integrating with existing power distribution units (PDUs), structured cabling, and upstream cooling loops. Submer references single-phase immersion cooling technology, where a non-conductive liquid absorbs heat and is circulated through heat exchangers, often linked to facility water systems or dry coolers.
In addition to physical infrastructure, Submer provides management and monitoring capabilities (infrastructure management) for tracking operational parameters such as temperature, fluid flow, and power use. These tools are used by data center operators and enterprise infrastructure teams to supervise immersion-cooled environments, align them with facility management systems, and maintain service-level objectives. The company also emphasizes integration with high-density AI and HPC deployments, where GPUs and other accelerators generate concentrated heat loads that can exceed typical air-cooled rack limits.
Submer’s solutions are positioned as alternatives or complements to traditional air cooling and other liquid-cooling methods such as direct-to-chip cold plate systems. Enterprises and colocation providers consider immersion cooling in scenarios involving constrained floor space, rising rack power densities, and efficiency objectives. Submer engages with customers through consulting, design, and deployment services (professional services), including assessments of existing facilities, capacity planning for immersion pods or rows, and guidance on IT hardware preparation for immersion compatibility.
Within an enterprise technology directory, Submer fits into categories such as data center cooling infrastructure, AI and HPC infrastructure, and infrastructure management tools supporting immersion-cooled hardware. Its offerings are relevant to roles including data center facility managers, infrastructure architects, cloud operators, and organizations planning specialized environments for AI training, scientific computing, or dense virtualized workloads where thermal management and power efficiency are core requirements.
Our description of Submer. Updated December 2025.
