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Accelsius

About Accelsius

Accelsius is an Austin-based data center liquid cooling provider focused on two-phase, direct-to-chip cooling for AI, HPC, edge, and mission-critical infrastructure. The company commercializes the NeuCool® platform, a refrigerant-based liquid cooling system designed to remove thermal constraints from dense compute deployments. Accelsius serves data center operators, AI neoclouds, hyperscale infrastructure teams, colocation providers, enterprise IT environments, telecommunications operators, FinTech platforms, academic computing groups, and other organizations deploying high-density CPU and GPU workloads. The company was founded by Innventure, Inc., and Accelsius operates as an Innventure-launched company serving the data center cooling technology market.

The NeuCool platform delivers two-phase direct-to-chip liquid cooling using non-conductive dielectric refrigerant that removes heat directly from CPUs and GPUs without bringing water into the IT rack. The portfolio includes rack-level, row-level, and evaluation-oriented solutions for AI factories, high-performance computing environments, and dense server deployments. NeuCool IR150 combines a two-phase Coolant Distribution Unit, 42U of IT rack space, and built-in liquid and vapor manifolds inside a single 800mm-wide enclosure, supporting up to 150 kW of cooling capacity. NeuCool MR250 provides a row-based CDU architecture with 250 kW+ of cooling capacity per rack. The product family also includes the NeuCool Thermal Simulation Rack, a test platform for validation, deployment planning, and thermal performance evaluation.

Accelsius differentiates through mission-critical cooling design, North American manufacturing operations, lifecycle services, and high-density thermal performance. The company’s Austin headquarters includes offices, labs, research and development space, administrative functions, production space, and the hub for North American manufacturing and supply chain operations. NeuCool has been tested for 4,500W+ per socket cooled, supports CPU and GPU platforms including Intel Sapphire Rapids, Intel Emerald Rapids, AMD EPYC Genoa, AMD EPYC Turin, NVIDIA Grace, NVIDIA H100, NVIDIA H200, NVIDIA B200, AMD MI325X, and AMD MI355X, and targets up to 50% energy savings compared with traditional air cooling. Accelsius also reports zero water consumption, a 1.08 targeted PUE, dielectric fluid with <1 GWP, and 35% lower annual OpEx versus single-phase direct-to-chip designs.

🛠️ Service Portfolio Overview

  1. Two-Phase Direct-to-Chip Cooling: NeuCool cools CPUs and GPUs directly using a non-conductive dielectric refrigerant.
  2. Integrated Rack Cooling: NeuCool IR150 combines a two-phase CDU, 42U IT rack space, and integrated liquid and vapor manifolds.
  3. Row-Based Cooling: NeuCool MR250 delivers 250 kW+ rack-level cooling capacity for large-scale high-density deployments.
  4. Thermal Validation: NeuCool Thermal Simulation Rack supports evaluation and deployment planning for liquid-cooled infrastructure.
  5. Lifecycle Services: Accelsius provides enterprise-grade lifecycle services for data center liquid cooling deployments.

🏢 Facility Highlights

  1. Austin Headquarters: 15,000-square-foot facility at 1835-B Kramer Lane in Austin, Texas.
  2. R&D Operations: The Austin facility includes offices, labs, and the company’s research and development center.
  3. Manufacturing Hub: Austin also serves as the hub for North American manufacturing and supply chain operations.
  4. Production Footprint: Administrative and production space operate under one roof for liquid cooling system commercialization.

🧠 AI Infrastructure Cooling

  1. GPU Support: NeuCool supports NVIDIA H100, NVIDIA H200, NVIDIA B200, AMD MI325X, and AMD MI355X GPU platforms.
  2. CPU Support: NeuCool supports Intel Sapphire Rapids, Intel Emerald Rapids, AMD EPYC Genoa, AMD EPYC Turin, and NVIDIA Grace CPU platforms.
  3. Socket-Level Performance: The platform cools 4,500W+ per socket.
  4. High-Density Rack Design: NeuCool IR150 supports up to 150 kW of cooling capacity in an integrated 800mm-wide rack enclosure.
  5. Deployment Use Cases: The platform supports AI factories, neocloud infrastructure, HPC, edge deployments, and dense enterprise compute.

🌱 Sustainability & Energy

  1. Water Use: NeuCool is designed for zero water consumption at the IT rack cooling layer.
  2. Energy Savings: The platform targets up to 50% energy savings compared with traditional air cooling.
  3. PUE Target: Accelsius lists a 1.08 targeted Power Usage Effectiveness.
  4. Dielectric Fluid: NeuCool uses dielectric refrigerant with a <1 Global Warming Potential rating.
  5. Operating Cost: Accelsius reports 35% lower annual OpEx versus single-phase direct-to-chip cooling.

🏭 Who It Serves

  1. Data Center Operators: Mission-critical facilities deploying high-density compute.
  2. AI Neoclouds: GPU cloud operators building AI training and inference infrastructure.
  3. Hyperscale Infrastructure: Large-scale operators validating two-phase liquid cooling reference designs.
  4. Colocation Providers: Providers supporting liquid-cooled racks and dense customer deployments.
  5. Enterprise & Research Workloads: AI, machine learning, HPC, FinTech, telecommunications, and academic computing environments.