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Iceotope Lands $26M to Expand Liquid Cooling

The big picture: Iceotope secured $26 million in Series B funding, led by Two Seas Capital and Barclays Climate Ventures, to expand its precision liquid cooling technology for advanced AI data centers. The Sheffield-based company has been developing cooling solutions for almost two decades.

Why it matters:

  • AI Workloads: Increasing AI workloads are pushing rack power to 1MW+, making traditional air and direct-to-chip liquid cooling insufficient for modern data centers.
  • Market Growth: SemiAnalysis predicts liquid-cooled AI accelerators will surge from 3 GW to 40 GW in two years, driven by major cloud providers adopting more AI workloads.
  • Sustainability Demands: Data centers face growing electricity consumption, water shortages, and sustainability regulations, which Iceotope’s low-water, silent system addresses.

How it works:

  • Chassis-Based Cooling: Iceotope’s patented system cools every component in the rack, not just the chips, ensuring efficient hardware operation even in high-density environments.
  • Edge Reliability: The technology is designed to work reliably in edge locations outside regular data centers, where heat management is particularly challenging for standard systems.
  • Extensive IP: The company holds 219 granted and pending patents for its liquid cooling technology, providing a significant competitive advantage in its comprehensive approach.

The catch: The liquid cooling market for AI infrastructure is becoming increasingly competitive, with established players like Vertiv, LiquidStack, and Asetek, alongside chip-level cooling startups such as Corintis. While Iceotope’s comprehensive chassis design and patent portfolio offer a distinct edge, particularly for edge deployments, it must rapidly scale partnerships and product development to maintain its lead against well-capitalized rivals.

Key Facts

  • Company: Iceotope
  • Amount: $26M
  • Round: Series B
  • Investor: Two Seas Capital and Barclays Climate Ventures (co-lead)
  • Sector: AI Infrastructure
  • Headquarters: Sheffield
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