Your options, from public cloud to your own racks.

What it gives you

• Data stored in UK data centres.
• The provider's full range of managed services, including AI services, at large scale.
• Several separate data centres in the region, so one site failing needn't stop you.
• Familiar tools, plenty of skilled people to hire, and a wide range of security certifications.
• Options to manage your own encryption keys.

What it doesn't

• It doesn't change the provider's home jurisdiction. For a US-headquartered provider, US law still applies to it.
• Some global features, such as parts of identity, billing, support and management, may process data outside the UK.
• Support and operations staff may be based in other countries.
• New services and AI models often reach the UK later, and some are only offered with EU, US or global processing.
• A UK region is still one region. Surviving a full regional failure needs a second region or another plan.

What it gives you

• A familiar platform, so existing skills, tools and designs largely carry over.
• Tighter limits on who can operate and access the service, with logs to show it.
• In some cases, a separate local legal entity or a local partner running the service.
• Customer-held encryption keys, often built in.
• A route to stronger controls without a full change of platform.

What it doesn't

• Most are built around the EU. The AWS European Sovereign Cloud is in Germany, and the Microsoft and Google partner clouds are in France and Germany. That's EU residency, not UK.
• The parent company is still US-headquartered. How much that matters, given the separate entities and controls, is debated.
• Fewer services than the standard public regions, and new services arrive later.
• Usually a higher price than the standard regions.
• They're newer, with a shorter track record. Check exactly which controls apply to UK regions.

What it gives you

• A provider headquartered in the UK or the EU, under that country's law.
• Many are built on open-source software such as OpenStack and Kubernetes, which helps portability.
• Often simpler pricing, which can make costs easier to predict.
• A good fit for UK firms that also operate in the EU and want EU residency there.
• More choice of supplier, which spreads concentration risk.

What it doesn't

• EU providers are subject to EU law and their own national law. Their EU regions give EU residency, not UK.
• Fewer managed services and less scale than the hyperscalers. Your team may build and run more.
• UK footprints are often smaller than in the provider's home country, and not every service runs in every location.
• Fewer engineers in the UK have worked with these platforms.
• A smaller provider has less capacity to absorb a major failure, so check its financial strength and your exit plan.

What it gives you

• The most control over location, access and encryption keys.
• Suitable for air-gapped and highly classified work.
• Predictable costs for steady workloads at scale.
• Open-weight AI models on your own GPUs, with no data leaving your sites.
• No dependency on a provider's commercial decisions for day-to-day running, if you use open-source software.

What it doesn't

• You buy, run, patch and replace the hardware, and plan capacity ahead of demand.
• Resilience is your job, which usually means a second site.
• Far fewer managed services. Your team builds and runs much more.
• GPUs for AI are expensive and need specialist skills to run well.
• Hyperscaler hardware on your site still relies on that vendor for software and updates.

What it gives you

• The right level of control for each workload.
• Extra spending only where the risk justifies it.
• Access to the newest services where the risk is low.
• Less dependence on any one provider.

What it doesn't

• Simplicity. Networking, identity, monitoring and security have to work across every platform.
• It needs strong architecture and governance, or it drifts.
• Moving data between platforms needs care, and can cost money.
• More platforms means more skills to keep up to date.