Barcelona, Spain – March 4, 2026 – Submer, the market-leading end-to-end AI infrastructure company, has today announced new UK partnerships as part of a broader expansion strategy, aligned with the Government’s focus on sovereign, sustainable digital infrastructure.

Submer enables organizations to scale AI growth by delivering full-stack AI infrastructure services, spanning liquid cooling solutions, monitoring software, datacentre design and build, and GPU cloud services. This integrated approach provides UK organisations with a single accountable partner for AI growth. To strengthen local availability, Submer has signed agreements with Hammer Distribution, an enterprise IT distributor, and Boston Ltd., a provider of high-performance computing and AI infrastructure solutions. The collaborations expand UK and European access to Submer’s liquid cooling portfolio alongside associated design, deployment and lifecycle support services.

Manpreet Bath, Vice President for Commercial Engagement at Submer, said:

“The UK is one of Europe’s most strategically important AI infrastructure markets. Strengthening our local partnerships ensures organisations can deploy energy-efficient, high-density environments while maintaining control over where their data is processed and governed.”

With datacentres now classified as Critical National Infrastructure and capacity forecasted to nearly double by 2028, demand for high-density, energy-efficient compute infrastructure is accelerating across sectors including financial services, healthcare and higher education. The UK datacenter market, Europe’s largest, has attracted more than £40bn in investment since 2023, according to Oxford Economics.

Adam Blackwell, Director of AI, Server, and Advanced Technology at Hammer, said:

“As AI workloads accelerate across Europe, the channel faces growing demand for high-density, energy-efficient infrastructure. Traditional air cooling is no longer sufficient, making liquid and cooling increasingly relevant beyond hyperscale. Hammer takes a consultative, ecosystem-led approach to AI infrastructure. Through our partnership with Submer, now part of Hammer’s AI WORKS program launching in early April, we strengthen local enablement and deployment capability, empowering European partners to deliver scalable, sustainable AI-ready solutions.”

Manoj Nayee, Managing Director at Boston Limited, commented:

“AI and HPC workloads are driving a transformation in infrastructure design throughout the UK. With increasing power densities and heightened performance demands, conventional cooling methods can no longer keep pace. Liquid cooling is swiftly becoming a necessity for providing efficient, scalable, and sustainable high-performance environments. By leveraging Boston’s extensive experience in AI and HPC system integration alongside Submer’s AI datacenter expertise and solutions, we empower organisations to implement sovereign, AI-ready infrastructure that satisfies the UK’s growing needs while minimising energy consumption.”

The expansion supports the UK’s data sovereignty objectives, ensuring strategic and sensitive data generated in the UK can be stored, processed and governed domestically. Datacenter operators reduce energy consumption, lower operational costs and meet sustainability targets through solutions designed for zero direct water consumption.

Enabling the UK’s sovereign AI infrastructure growth

As AI adoption accelerates, infrastructure decisions are increasingly shaped by energy constraints, regulatory requirements and sovereignty considerations. Submer’s UK expansion reinforces its commitment to supporting public and private sector organisations building scalable AI capacity within the UK. The partnerships form part of Submer’s wider UK investment, including expansion of the local team, with technical and commercial positions currently open to support customer engagement and in-market expertise.

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