Powering theUKs AI future

UK-owned. UK-powered. National AI infrastructure.

Delivering resilient, high performance AI infrastructure in the UK

At Era4, we are building the AI infrastructure the UK needs to compete, innovate and lead a new era of AI progress. Transforming brownfield land into lower-carbon AI compute, the future will be UK-owned on UK-governed land. New investment in our communities will bring regeneration and resilience.

Latest news and announcements

8 Jun 2026

Press release: Era4 and Cosine Sign MoU to Scale Britain’s Sovereign AI Capability

8 Jun 2026

Press release: Era4 and Cosine Sign MoU to Scale Britain’s Sovereign AI Capability

8 Jun 2026

Press release: Era4 and Cosine Sign MoU to Scale Britain’s Sovereign AI Capability

13 May 2026

Press release: Karl Havard joins Era4 as Chief Commercial Officer

13 May 2026

Press release: Karl Havard joins Era4 as Chief Commercial Officer

13 May 2026

Press release: Karl Havard joins Era4 as Chief Commercial Officer

17 Apr 2026

‘Energy efficient’ data centre planned for former steel site

17 Apr 2026

‘Energy efficient’ data centre planned for former steel site

17 Apr 2026

‘Energy efficient’ data centre planned for former steel site

6 Mar 2026

Chester Reid joins Era4 as CFO

6 Mar 2026

Chester Reid joins Era4 as CFO

6 Mar 2026

Chester Reid joins Era4 as CFO

5 Mar 2026

CEO Tom Humphreys on moving from short-term AI sales to long-term sovereign infrastructure thinking with HPE

5 Mar 2026

CEO Tom Humphreys on moving from short-term AI sales to long-term sovereign infrastructure thinking with HPE

5 Mar 2026

CEO Tom Humphreys on moving from short-term AI sales to long-term sovereign infrastructure thinking with HPE

26 Mar 2026

Era4’s Sana Khareghani at WWT AI Day on scaling AI with sovereign infrastructure, control and confidence

26 Mar 2026

Era4’s Sana Khareghani at WWT AI Day on scaling AI with sovereign infrastructure, control and confidence

26 Mar 2026

Era4’s Sana Khareghani at WWT AI Day on scaling AI with sovereign infrastructure, control and confidence

5 Mar 2026

Carbon3 is now Era4

5 Mar 2026

Carbon3 is now Era4

5 Mar 2026

Carbon3 is now Era4

2 Mar 2026

Carbon3.ai featured Computer Weekly article on neocloud providers

2 Mar 2026

Carbon3.ai featured Computer Weekly article on neocloud providers

2 Mar 2026

Carbon3.ai featured Computer Weekly article on neocloud providers

25 Feb 2026

Era4’s Sana Khareghani featured at Platform UK 2025 on panel “AI Growth Zones & Sovereignty”

25 Feb 2026

Era4’s Sana Khareghani featured at Platform UK 2025 on panel “AI Growth Zones & Sovereignty”

25 Feb 2026

Era4’s Sana Khareghani featured at Platform UK 2025 on panel “AI Growth Zones & Sovereignty”

17 Dec 2025

Press release: Liquid cooled NVIDIA HGX B300 deployment

17 Dec 2025

Press release: Liquid cooled NVIDIA HGX B300 deployment

17 Dec 2025

Press release: Liquid cooled NVIDIA HGX B300 deployment

Advancing the UK's infrastructure capability

  • Enterprise

    To power AI adoption across industries, from automation to real-time data and decisioning

  • Defence

    For intelligence, simulation and mission-critical decision making

  • Healthcare

    For diagnostics, drug discovery and personalised treatment at scale

  • Science

    To accelerate discovery, from climate modelling to advanced materials

  • Research

    Enabling universities and labs to train models and process large data sets

Attracting investment through compute power

Owned land across the country

Our 40+ brownfield sites include landfill and legacy industrial land. Supporting regeneration, they bring new investment into the surrounding communities.

Landfill gas to lower-carbon energy

Generating renewable power on many of our sites, we convert gas from existing and closed landfills into electricity.

Renewable wind and solar energy

When available we integrate wind and solar energy sources. Together, they secure a renewable supply for future AI demand.

World-class data centres

We deploy high-performance AI compute for production workloads, advanced research and next-generation AI applications.

Secure AI infrastructure

Powering science, research, healthcare, defence, and UK enterprise, we are driving innovation, growth and national resilience.

  • Defence

    For intelligence, simulation and mission-critical decision making

  • Healthcare

    For diagnostics, drug discovery and personalised treatment at scale

  • Science

    To accelerate discovery, from climate modelling to advanced materials

  • Research

    Enabling universities and labs to train models and process large data sets

  • Enterprise

    To power AI adoption across industries, from automation to real-time data and decisioning

Communities benefits

We help communities unlock new industrial opportunities by enabling the infrastructure high-performance industries need - bringing jobs, growth and long-term economic value with them.

Attracting investment through compute power

National infrastructure for the national interest

With the UK government committing to 6GW of AI capacity by 2030, the target has been set. At Era4, every site is primed for fast deployment, energy integration and national strategic value.

England

A distributed network of major development zones and rapiddeployment sites. All to deliver scalable, lower-carbon compute.

Wales

Compute to transform historic industrial regions into long-term digital and economic engines.

Scotland

Integrated with major renewable and energy-cluster infrastructure, each site supports rapid AI expansion.

Northern Ireland

Located in established industrial corridors, these sites will unlock new digital potential, investment and economic progress.

England

A distributed network of major development zones and rapiddeployment sites. All to deliver scalable, lower-carbon compute.

Wales

Compute to transform historic industrial regions into long-term digital and economic engines.

Scotland

Integrated with major renewable and energy-cluster infrastructure, each site supports rapid AI expansion.

Northern Ireland

Located in established industrial corridors, these sites will unlock new digital potential, investment and economic progress.

England

A distributed network of major development zones and rapiddeployment sites. All to deliver scalable, lower-carbon compute.

Wales

Compute to transform historic industrial regions into long-term digital and economic engines.

Scotland

Integrated with major renewable and energy-cluster infrastructure, each site supports rapid AI expansion.

Northern Ireland

Located in established industrial corridors, these sites will unlock new digital potential, investment and economic progress.

Building a more certain AI future.

Building a more certain AI future.

Building a more certain AI future.

AI has the potential to transform the UK economy, but transformation demands certainty. We are here to deliver it through secure, resilient data centres you can rely on, designed to scale at speed. High-performance compute built on brownfield sites, unlocking new investment for the communities around them.

AI has the potential to transform the UK economy, but transformation demands certainty. We are here to deliver it through secure, resilient data centres you can rely on, designed to scale at speed. High-performance compute built on brownfield sites, unlocking new investment for the communities around them.

AI has the potential to transform the UK economy, but transformation demands certainty. We are here to deliver it through secure, resilient data centres you can rely on, designed to scale at speed. High-performance compute built on brownfield sites, unlocking new investment for the communities around them.

Infrastructure built around your AI ambition

Era4 delivers infrastructure built for real-world workloads, enabling a clear path to production and reliable scaling as demand grows

Guaranteed capacity on demand

With infrastructure ready today, we have expansion capacity already secured through owned land, and integrated energy infrastructure.

Infrastructure on a national scale

Controlling our land and power is key. From early deployment to national-scale production workloads, we can expand reliably and responsibly.

Delivered with world-class partners

The best technology comes as standard. We design and deploy directly with global leaders, including NVIDIA, HPE, and WWT.

Built around your real infrastructure needs

From workload, security and sovereignty, to energy and scaling roadmaps, every piece of infrastructure is aligned to your bespoke demands.

Guaranteed capacity on demand

With infrastructure ready today, we have expansion capacity already secured through owned land, and integrated energy infrastructure.

Infrastructure on a national scale

Controlling our land and power is key. From early deployment to national-scale production workloads, we can expand reliably and responsibly.

Delivered with world-class partners

The best technology comes as standard. We design and deploy directly with global leaders, including NVIDIA, HPE, and WWT.

Built around your real infrastructure needs

From workload, security and sovereignty, to energy and scaling roadmaps, every piece of infrastructure is aligned to your bespoke demands.

Guaranteed capacity on demand

With infrastructure ready today, we have expansion capacity already secured through owned land, and integrated energy infrastructure.

Infrastructure on a national scale

Controlling our land and power is key. From early deployment to national-scale production workloads, we can expand reliably and responsibly.

Delivered with world-class partners

The best technology comes as standard. We design and deploy directly with global leaders, including NVIDIA, HPE, and WWT.

Built around your real infrastructure needs

From workload, security and sovereignty, to energy and scaling roadmaps, every piece of infrastructure is aligned to your bespoke demands.

Leadership team

Led by experts in infrastructure, energy, AI, government, and national resilience

Mark Dawber

Chief Energy and Infrastructure Officer

Mark Dawber

Chief Energy and Infrastructure Officer

Karl Havard

Chief Commercial Officer

Karl Havard

Chief Commercial Officer

Nick Hume

Chief Technology Officer

Nick Hume

Chief Technology Officer

Tom Humphreys

Chief Executive Officer

Tom Humphreys

Chief Executive Officer

Sana Khareghani

Chief Strategy Officer

Sana Khareghani

Chief Strategy Officer

Joseph Parry

Executive Chairman

Joseph Parry

Executive Chairman

Chester Reid

Chief Financial Officer

Chester Reid

Chief Financial Officer

Richard Collier-Keywood

Senior Advisor

Richard Collier-Keywood

Senior Advisor

Sir George Zambellas

Senior Advisor

Sir George Zambellas

Senior Advisor