EU Sovereignty Score
EU sovereignAI SecurityHeadquarters: DE

NENNA.AI: sovereignty score and 8 European alternatives

NENNA.AI is a privacy platform for using AI in organisations, developed by nenna.ai GmbH in Berlin. It detects sensitive data such as names, bank account numbers or trade secrets in prompts and documents and masks them in real time before they reach an AI model; the real values are put back into the answer. The platform consists of NENNA Chat, a chat workspace where you can use several AI models and your own company knowledge, NENNA Watch, a browser extension against shadow AI, NENNA Shield, an API for your applications, and NENNA Legal for law firms.

nenna.ai GmbH is based in Germany and names no foreign parent company on its website. The vendor says its servers are exclusively in the EU and the service runs on German infrastructure; NENNA Shield can also run on-premises or in your own cloud. Connected models include US providers such as Anthropic, OpenAI and Google, and European ones such as Mistral. Masked prompts go to the provider you choose, so processing in the US is possible and the CLOUD Act can apply.

See the 8 European alternatives ↓Assess your stack with NENNA.AI pre-selected
MastodonLinkedInBlueskyXEmail
Sovereignty score
59 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-350
    Hosting inside and outside Europe (EU, US)
  • Cryptographic key sovereignty SOV-360
    Key management with a European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-645
    Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 14, 2026
Headquarters
DE (EU)Verified by hand
Sovereignty model
Vendor-hosted (EU)Verified by hand
Data hosting
EU, USVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Category
AI Security
Type
Product
Website
nenna.ai ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to NENNA.AI

The European alternatives to NENNA.AI come from our knowledge base of over 9,200 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

21 European AI Security vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

Is NENNA.AI one of many dependencies?

Score your whole stack in about three minutes. Free, no account needed.

Assess your stack →View a sample report (opens in a new tab)

Why digital sovereignty matters with NENNA.AI

NENNA.AI is headquartered in DE and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

NENNA.AI hosts data in EU, US. Exactly what stays within the EU — and what does not — is defined by the vendor's data processing agreement and sub-processor list, not by a setting you control yourself; check those documents for the precise scope, including backups, logs and support access.

NENNA.AI is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs NENNA.AI together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to NENNA.AI?

It depends on your use case. Strong EU alternatives to NENNA.AI include 2021.AI GRACE, BRANE (AI-Z) and CalypsoAI. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to NENNA.AI?

Yes. Open-source EU alternatives to NENNA.AI include Giskard, Invariant Labs and Mistral Shieldstral. These keep your data fully under your own control and let you self-host if you want to.

Is NENNA.AI GDPR-compliant and where is the data hosted?

NENNA.AI is headquartered in DE (EU) and hosts data in EU, US. That makes NENNA.AI an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 14, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

In the changelog

Earlier changes to this page, as listed in the public changelog.

Digital sovereignty in AI Security

AI Security: Security for AI/LLM systems — prompt-injection detection, AI red-teaming, agentic security posture management and AI governance guardrails. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

See all →
Open in the alternatives dashboardMissing a vendor? Submit itAre you this vendor? You can also become a sponsor on the AI Security page — with no effect on your score
8 European alternatives to NENNA.AI — GDPR-compliant & EU-hosted · EU Sovereignty Score