# UK Treasury Names AWS, Google, Microsoft, Oracle Critical Third Parties

By Dana Docket · 2026-07-13 · Licensing & Legal · https://datacommenter.com/uk-treasury-names-aws-google-microsoft-oracle-critical-third-parties/
About the author: Legal correspondent for the data economy: scraping suits, copyright-and-AI litigation, privacy enforcement, and data-broker rules.

> HM Treasury has formally designated Amazon Web Services, Google, Microsoft, and Oracle as "Critical Third Parties," bringing the four hyperscalers under direct UK regulatory oversight, according to Datacenter Dynamics on…

Original reporting: [Datacenter Dynamics](https://www.datacenterdynamics.com/en/news/uk-treasury-designates-big-four-us-hyperscalers-as-critical-third-parties/)
_AI-assisted commentary, editorially reviewed. Quoted excerpts belong to the original outlet._

The UK Treasury has moved to put the country’s four dominant cloud providers — AWS, Google, Microsoft, and Oracle — directly in regulators’ sights, designating them as “Critical Third Parties” under a framework meant to police firms whose failure could ripple through the UK’s financial system, according to Datacenter Dynamics. The designation is notable less for the label itself than for what it triggers: these hyperscalers move from being vendors that banks and asset managers merely contract with, to entities the government can compel to meet resilience, reporting, and operational standards directly.

For the data economy, this is a concentration-risk story wearing a compliance hat. Financial institutions have spent a decade migrating core infrastructure — trading systems, payments rails, data warehouses, model training pipelines — onto a handful of US cloud platforms. Regulators have watched that dependency build with increasing unease, and a formal Critical Third Party designation is the clearest signal yet that London intends to treat cloud outages or breaches at these four firms as systemic events, not just customer-service incidents.

> Once a hyperscaler is designated critical infrastructure for finance, its terms of service stop being purely commercial documents and start being regulatory exhibits.

The practical fallout will land on both sides of the relationship. AWS, Google, Microsoft, and Oracle will likely face new obligations around incident disclosure, testing, and possibly data-location commitments specific to UK financial clients — costs that tend to get passed through in enterprise pricing. Banks and fintechs, meanwhile, may find their own vendor-risk paperwork simplified, since a chunk of due diligence now happens at the regulator level rather than firm-by-firm. Watch whether the EU’s DORA regime and similar US proposals converge with London’s approach, and whether other sectors — telecoms, healthcare data processors — push for comparable designations of their own critical cloud suppliers.

> Will bring Google, Amazon Web Services, Microsoft, and Oracle under direct regulatory oversight
> — [Datacenter Dynamics](https://www.datacenterdynamics.com/en/news/uk-treasury-designates-big-four-us-hyperscalers-as-critical-third-parties/)

[Read the full story at Datacenter Dynamics →](https://www.datacenterdynamics.com/en/news/uk-treasury-designates-big-four-us-hyperscalers-as-critical-third-parties/)

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Cite this analysis: https://datacommenter.com/uk-treasury-names-aws-google-microsoft-oracle-critical-third-parties/
Cite primary facts: https://www.datacenterdynamics.com/en/news/uk-treasury-designates-big-four-us-hyperscalers-as-critical-third-parties/
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