Digital Sovereignty
Your business runs on US infrastructure.
That is a risk you can manage.
European data protection law, the EU AI Act, and shifting geopolitical conditions are forcing a strategic reassessment for organisations built on American cloud platforms and AI services. AIDARIUS maps your exposure and leads the migration to a sovereign, compliant European stack — without disrupting your operations.
Why this matters now
Three forces driving European businesses off US infrastructure
Migration scope
What AIDARIUS migrates
Not all US tech carries equal risk. We prioritise the layers where your data exposure, regulatory obligation, and switching cost intersect.
Generative AI & LLM Layer
Replace OpenAI, Anthropic, and Google AI APIs with European-hosted or open-weight model deployments — maintaining capability while repatriating data processing.
- Mistral AI (France) — frontier-grade, EU-hosted
- Aleph Alpha (Germany) — enterprise sovereign AI
- Self-hosted open-weight models via Ollama / vLLM
- LLM gateway with data masking before US API calls
Cloud Infrastructure
Exit AWS, Azure, and Google Cloud in favour of European hyperscalers — retaining performance and developer experience without US jurisdiction exposure.
- Hetzner Cloud (Germany) — cost-effective, GDPR-native
- OVHcloud (France) — full EU data centre coverage
- IONOS Cloud (Germany) — ISO 27001, BSI C5 certified
- Scaleway (France) — developer-friendly, Paris/Amsterdam
Productivity Suite
Replace Microsoft 365 and Google Workspace with open-source and EU-hosted alternatives that give you full control over documents, email, and calendar data.
- Nextcloud — files, calendars, video, tasks (self-hosted)
- Proton Mail & Calendar — encrypted, Swiss-jurisdiction
- Infomaniak kSuite — full suite, Swiss provider
- OnlyOffice — document editing, Microsoft-compatible
Analytics & Marketing Stack
Replace Google Analytics, HubSpot, and Salesforce with EU-based alternatives — eliminating consent complexity and third-party data sharing from your marketing operations.
- Matomo Analytics — self-hosted, no consent required
- Brevo (formerly Sendinblue) — French-headquartered CRM & email
- Plausible Analytics — privacy-first, EU-hosted
- Piwik PRO — enterprise analytics, EU data centres
US → EU
Replacement map
A reference overview of the US tools AIDARIUS most frequently replaces and the EU-based alternatives recommended after a stack audit.
| Category | Current US tool | EU alternative |
|---|---|---|
| AI / LLM | OpenAI GPT-4o, Anthropic Claude | Mistral AI France, Aleph Alpha Germany |
| Cloud compute | AWS, Google Cloud, Azure | Hetzner Germany, OVHcloud France, Scaleway France |
| Email & calendar | Gmail / Google Workspace, Outlook | Proton Mail Switzerland, Infomaniak Switzerland |
| File storage & docs | Google Drive, OneDrive, Dropbox | Nextcloud Germany, Tresorit Switzerland |
| Video conferencing | Zoom, Microsoft Teams, Google Meet | Jitsi (self-hosted), Whereby Norway, Infomaniak Meet |
| Web analytics | Google Analytics 4 | Matomo France, Plausible Estonia, Piwik PRO Poland |
| CRM & marketing | HubSpot, Salesforce, Mailchimp | Brevo France, Pipedrive Estonia |
| Project management | Notion, Asana, Monday.com | Basecamp EU, Taiga Spain, OpenProject Germany |
Process
How a migration engagement works
Who this is for
This service is right for you if
50–500 employees
Large enough to have real exposure, agile enough to migrate without a multi-year programme.
Regulated sectors
Finance, healthcare, legal, government-adjacent — where data residency and model auditability are non-negotiable.
Data-sensitive operations
Organisations processing EU citizen data, intellectual property, or client-confidential information through third-party US tools.
EU-first positioning
Companies that want to demonstrate EU digital sovereignty as a competitive differentiator — to clients, regulators, and partners.
FAQ
Common questions about EU tech migration
Do we have to replace everything at once?
No. AIDARIUS uses a phased, risk-prioritised approach. Most organisations start with the two or three tools that carry the highest GDPR or regulatory exposure — typically cloud AI APIs and primary storage. Remaining tools are migrated in subsequent phases, based on operational criticality and switching complexity.
Are EU alternatives genuinely comparable in quality?
For most business use cases, yes. Mistral AI models deliver competitive performance to GPT-4o-class models on most enterprise tasks. Hetzner and OVHcloud match AWS and Azure on standard compute workloads at significantly lower cost. The quality gap that existed three years ago has largely closed — particularly in the AI layer, which is where European investment has been strongest.
Is the concern about US tools really justified, or is this overstated?
The legal risk is documented, not theoretical. The EU Court of Justice invalidated both Safe Harbour and Privacy Shield — the frameworks that previously justified US data transfers — on exactly these grounds. Standard Contractual Clauses (SCCs) provide a partial remedy but require a Transfer Impact Assessment that many organisations have not conducted. The EU AI Act adds a further compliance layer for organisations using AI systems in regulated decision-making contexts.
How long does a typical migration take?
A stack audit and priority matrix typically takes two to three weeks. A pilot migration of one to two tools takes four to eight weeks depending on integration complexity. Full stack migration for a 50–200 person organisation typically runs six to twelve months, structured in phases that do not disrupt ongoing operations.
Do you handle the technical implementation or just the strategy?
AIDARIUS handles strategy, tool selection, vendor evaluation, and implementation oversight. For technical deployment — server configuration, API integration, data migration — we work with trusted technical partners or your existing IT team. The engagement model is tailored to what you already have in-house.
Start with a conversation
Book a EU tech stack audit
A 90-minute structured review of your current tools, data flows, and regulatory exposure. You receive a written report with a prioritised migration roadmap — no commitment beyond the session required.