Era4

Era4

Sovereign, low-carbon AI infrastructure network

Overview

Carbon3.ai builds the UK's sovereign and sustainable AI infrastructure by combining in-house renewable energy with a distributed AI mesh of 30+ data centers and an enterprise AI software stack. Its products provide ultra-low-latency AI compute through a UK-only, cross-border-free data backbone, delivered as AIaaS, TaaS, and MaaS, with carbon credits generated for every compute cycle. The company differentiates itself by owning a carbon-neutral infrastructure, prioritizing data sovereignty, ESG goals, and strong partnerships with HPE, VAST Data, and WWT. Its goal is to give the UK a secure, low-carbon AI backbone, reduce dependence on foreign infrastructure, and scale to over 100,000 GPUs with a 5MW site opening in the East Midlands by March 2026 as part of a £1 billion growth program.

Launched Recently
Significant Headcount Growth

About Era4

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Not yet rated

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Industries

Data & Analytics

Energy

Enterprise Software

AI & Machine Learning

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

Rugby, United Kingdom

Founded

2025

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Simplify's Take

What believers are saying

  • Civo partnership adds a productized sovereign cloud inside Era4 sites.
  • Brownfield conversions shorten deployment timelines versus greenfield data-center builds.
  • UK public-sector demand favors domestic, low-carbon, jurisdiction-controlled AI infrastructure.

What critics are saying

  • Permitting fights can delay Canterbury, Derbyshire, Newport, and Anglesey projects.
  • Nvidia HGX B300 dependence exposes deployments to supply allocation and pricing shocks.
  • £1 billion buildout needs constant financing before the network reaches scale.

What makes Era4 unique

  • Vertically integrated UK-owned AI mesh spans 50+ domestic data-center locations.
  • Combines off-grid renewable generation with liquid-cooled NVIDIA Blackwell Ultra infrastructure.
  • Positions sovereign AI as managed services: AIaaS, TaaS, and MaaS.

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Growth & Insights

Headcount

6 month growth

11%

1 year growth

18%

2 year growth

18%

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