Europe Launched Its Own Office Suite in The Hague. The Reason Is the US CLOUD Act.

VaultTools · March 20, 2026

Photo by NASA on Unsplash

Table of Contents

• What launched
• The CLOUD Act problem
• The scale of the shift
• Sovereignty washing
• What data sovereignty means at the file level
• Sources

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What Launched

On March 4, 2026, Office.eu launched publicly from The Hague, Netherlands. The platform bundles document editing, spreadsheets, presentations, file storage, email, calendars, and video meetings, built on open-source foundations and operated entirely within European infrastructure.

Nearly 15,000 organizations applied for early access before the public launch. Broad availability is planned for Q2 2026. The project is explicitly positioned as an alternative to Microsoft 365 and Google Workspace for European users who need their data to remain outside US legal jurisdiction.

The CLOUD Act Problem

The US CLOUD Act, enacted in 2018, allows US law enforcement to compel American-headquartered cloud providers to hand over data stored on their servers, regardless of where those servers are physically located. This applies to Microsoft, Google, Amazon, and any other US company, even when data is stored in EU data centers.

This creates a direct conflict with GDPR. European organizations using US cloud services to store documents, emails, or files face a situation where two legal regimes assert simultaneous authority over the same data. EU data protection authorities have increasingly signaled that this tension cannot be resolved simply by choosing a European data center within a US-owned cloud.

The Register documented an accelerating exodus of European enterprises from US cloud providers in January 2026, driven by this structural incompatibility. Office.eu was built specifically to sit outside this conflict by placing the entire stack, ownership, infrastructure, and legal jurisdiction, within the EU.

The Scale of the Shift

On February 9, 2026, Gartner published figures on European sovereign cloud investment. European spending on sovereign cloud infrastructure is forecast to grow 83% in 2026 alone and to nearly triple between 2025 and 2027, rising from $6.9 billion to $23.1 billion. Worldwide sovereign cloud IaaS spending is projected to reach $80 billion in 2026.

Sovereign cloud, in this context, refers specifically to infrastructure where data is not subject to foreign government access. The growth figures reflect a market that has moved from treating data sovereignty as a compliance checkbox to treating it as a core infrastructure requirement.

Sovereignty Washing

On March 18, 2026, cloud industry body CISPE issued a warning to the European Commission about what it called “sovereignty washing,” a practice where major US cloud providers offer EU-branded products, EU data residency guarantees, and EU-specific compliance certifications, while the underlying companies remain subject to US law and therefore to the CLOUD Act.

CISPE’s position is that no amount of EU-local data storage resolves the fundamental issue when the provider itself is a US entity. A company incorporated in the US can be compelled to produce data regardless of where it sits physically. The “EU cloud” label, in this framing, is a marketing claim rather than a legal guarantee.

What Data Sovereignty Means at the File Level

The Office.eu launch and the sovereign cloud movement address data at rest and data in transit within cloud infrastructure. They move the server to Europe. They do not eliminate the server.

Files uploaded to Office.eu for editing, conversion, or storage still travel to and reside on external infrastructure, infrastructure that is now European-owned rather than American-owned. This matters considerably for organizations concerned about CLOUD Act exposure. It does not address what happens when a file is processed by a tool that logs content, retains documents beyond the session, or is itself breached.

Browser-based file processing closes that gap differently. When a file is converted, compressed, or edited inside a browser tab using WebAssembly, it never travels to any server, European or otherwise. The file remains on the user’s device for the entire operation. There is no upload, no data center, no jurisdiction question, and no retention policy. The document is processed locally and written back to the device.

The European sovereign cloud movement is a meaningful structural response to a real legal problem. For file processing specifically, local execution goes further by removing the infrastructure layer from the equation entirely.

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Sources

• Office.eu launches as Europe’s sovereign alternative to Microsoft 365 (Winbuzzer)
• European alternative to Microsoft Office launches at The Hague (TechRadar)
• Welcome Office.EU, a Microsoft 365 alternative focused on data sovereignty (Office Watch)
• Gartner: Worldwide Sovereign Cloud IaaS Spending Will Total $80 Billion in 2026 (Gartner)
• Euro firms must ditch Uncle Sam’s clouds and go EU-native (The Register)
• Europe set to treble sovereign cloud investment (The Register)
• Don’t let hyperscalers hijack digital sovereignty, EC told (The Register)
• Office.eu and the hope for a digitally sovereign Europe (Silicon Republic)