Glean

Enterprise AI search that connects and searches all company knowledge with strict access controls

Noxtua

Europe's sovereign legal AI with its own European-trained legal LLM

Glean

Moderate

16/25

Noxtua

Excellent

25/25

Score Breakdown

DimensionGleanNoxtua

Data Residency

Where is your data stored and processed?

Glean: AWS-hosted with US and EU options; data residency configurations available for regulated industries on request; permission-enforcement architecture prevents cross-tenant data exposure

Noxtua: Processing occurs exclusively on European infrastructure (Open Telekom Cloud by Deutsche Telekom and IONOS) with no connection to US cloud providers, plus an on-premise deployment option. Best-in-class EU data residency.

3/5

AWS-hosted with US and EU options; data residency configurations available for regulated industries on request; permission-enforcement architecture prevents cross-tenant data exposure

5/5

Processing occurs exclusively on European infrastructure (Open Telekom Cloud by Deutsche Telekom and IONOS) with no connection to US cloud providers, plus an on-premise deployment option. Best-in-class EU data residency.

Legal Jurisdiction

Which laws govern the company and your data?

Glean: US Delaware corporation subject to US jurisdiction and CLOUD Act; DPAs available for GDPR; Capital One Ventures as investor may raise considerations for some financial services organisations

Noxtua: Incorporated in Germany as Noxtua SE (formerly Xayn AG), an EU/EEA entity with no US parent. Designed to meet German professional-secrecy law (§ 43e BRAO, § 203 StGB).

2/5

US Delaware corporation subject to US jurisdiction and CLOUD Act; DPAs available for GDPR; Capital One Ventures as investor may raise considerations for some financial services organisations

5/5

Incorporated in Germany as Noxtua SE (formerly Xayn AG), an EU/EEA entity with no US parent. Designed to meet German professional-secrecy law (§ 43e BRAO, § 203 StGB).

Data Retention & Training

Is your data used for model training?

Glean: Customer data not used to train foundational AI models; strict permission mirroring ensures data is only surfaced to authorised users; comprehensive audit logs and configurable retention policies

Noxtua: Explicitly states customer data is never used to train, retrain or improve AI models, with sovereign/on-premise deployment and enterprise DPA-level controls. Specific configurable retention windows are not publicly detailed but the no-training and isolation posture is strong.

4/5

Customer data not used to train foundational AI models; strict permission mirroring ensures data is only surfaced to authorised users; comprehensive audit logs and configurable retention policies

5/5

Explicitly states customer data is never used to train, retrain or improve AI models, with sovereign/on-premise deployment and enterprise DPA-level controls. Specific configurable retention windows are not publicly detailed but the no-training and isolation posture is strong.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Glean: SOC 2 Type II certified; HIPAA BAA available; GDPR compliant with DPA; no ISO 27001 publicly confirmed

Noxtua: Extensive published certification stack: ISO 42001 (first German company), ISO 27001, 27017, 27018, 9001, plus BSI C5 and TISAX. No SOC 2 (US-oriented), but European sector and AI-specific certifications exceed the baseline.

3/5

SOC 2 Type II certified; HIPAA BAA available; GDPR compliant with DPA; no ISO 27001 publicly confirmed

5/5

Extensive published certification stack: ISO 42001 (first German company), ISO 27001, 27017, 27018, 9001, plus BSI C5 and TISAX. No SOC 2 (US-oriented), but European sector and AI-specific certifications exceed the baseline.

Regulatory Fit

Suitability for regulated industries and professional services

Glean: Permission-enforcement architecture, HIPAA BAA, audit logs, and data residency options make Glean well-suited to large regulated enterprises; US jurisdiction is the primary limitation for EU-sovereignty-focused buyers

Noxtua: Purpose-built for regulated EU legal work, explicitly meeting attorney confidentiality and professional-secrecy requirements, with backing from major law firms and legal publishers. Suitable for the most demanding EU regulated legal and public-sector use.

4/5

Permission-enforcement architecture, HIPAA BAA, audit logs, and data residency options make Glean well-suited to large regulated enterprises; US jurisdiction is the primary limitation for EU-sovereignty-focused buyers

5/5

Purpose-built for regulated EU legal work, explicitly meeting attorney confidentiality and professional-secrecy requirements, with backing from major law firms and legal publishers. Suitable for the most demanding EU regulated legal and public-sector use.

Total Score

16/25

25/25

Best For

Glean

Best for privacy-conscious teams who need strong data retention controls.

Noxtua

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (ISO 42001, ISO 27001, ISO 27017); regulated industries (BfDI, BaFin); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment.

Detailed Comparison

Glean vs Noxtua: Trust & Compliance Comparison

Glean (Glean, US) scores 16/25 overall with a Bronze (Moderate) trust badge. Enterprise AI search that connects and searches all company knowledge with strict access controls. Noxtua (Noxtua, DE) scores 25/25 with a Gold (Excellent) trust badge. Europe's sovereign legal AI with its own European-trained legal LLM.

Dimension-by-Dimension Breakdown

#### Data Residency

Noxtua leads with 5/5 vs 3/5.

●Glean (3/5): AWS-hosted with US and EU options; data residency configurations available for regulated industries on request; permission-enforcement architecture prevents cross-tenant data exposure

●Noxtua (5/5): Processing occurs exclusively on European infrastructure (Open Telekom Cloud by Deutsche Telekom and IONOS) with no connection to US cloud providers, plus an on-premise deployment option. Best-in-class EU data residency.

#### Legal Jurisdiction

Noxtua leads with 5/5 vs 2/5.

●Glean (2/5): US Delaware corporation subject to US jurisdiction and CLOUD Act; DPAs available for GDPR; Capital One Ventures as investor may raise considerations for some financial services organisations

●Noxtua (5/5): Incorporated in Germany as Noxtua SE (formerly Xayn AG), an EU/EEA entity with no US parent. Designed to meet German professional-secrecy law (§ 43e BRAO, § 203 StGB).

#### Data Retention & Training

Noxtua leads with 5/5 vs 4/5.

●Glean (4/5): Customer data not used to train foundational AI models; strict permission mirroring ensures data is only surfaced to authorised users; comprehensive audit logs and configurable retention policies

●Noxtua (5/5): Explicitly states customer data is never used to train, retrain or improve AI models, with sovereign/on-premise deployment and enterprise DPA-level controls. Specific configurable retention windows are not publicly detailed but the no-training and isolation posture is strong.

#### Certifications

Noxtua leads with 5/5 vs 3/5.

●Glean (3/5): SOC 2 Type II certified; HIPAA BAA available; GDPR compliant with DPA; no ISO 27001 publicly confirmed

●Noxtua (5/5): Extensive published certification stack: ISO 42001 (first German company), ISO 27001, 27017, 27018, 9001, plus BSI C5 and TISAX. No SOC 2 (US-oriented), but European sector and AI-specific certifications exceed the baseline.

#### Regulatory Fit

Noxtua leads with 5/5 vs 4/5.

●Glean (4/5): Permission-enforcement architecture, HIPAA BAA, audit logs, and data residency options make Glean well-suited to large regulated enterprises; US jurisdiction is the primary limitation for EU-sovereignty-focused buyers

●Noxtua (5/5): Purpose-built for regulated EU legal work, explicitly meeting attorney confidentiality and professional-secrecy requirements, with backing from major law firms and legal publishers. Suitable for the most demanding EU regulated legal and public-sector use.

Certifications at a Glance

Certification	Glean	Noxtua
BSI C5	No	Yes
ISO 27001	No	Yes
ISO 27017	No	Yes
ISO 27018	No	Yes
ISO 42001	No	Yes
ISO 9001	No	Yes
SOC 2 Type II	Yes	No
TISAX	No	Yes

Overall Verdict

Noxtua has a clear trust advantage, scoring 25/25 compared to Glean's 16/25. Noxtua particularly excels in data residency, legal jurisdiction, data retention & training, certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Glean or Noxtua?

Glean has a TrustKit score of 16/25 while Noxtua scores 25/25. Noxtua currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Glean and Noxtua compare on data residency?

Glean scores 3/5 for data residency (AWS-hosted with US and EU options; data residency configurations available for regulated industries on request; permission-enforcement architecture prevents cross-tenant data exposure), while Noxtua scores 5/5 (Processing occurs exclusively on European infrastructure (Open Telekom Cloud by Deutsche Telekom and IONOS) with no connection to US cloud providers, plus an on-premise deployment option. Best-in-class EU data residency.).

Are Glean and Noxtua GDPR compliant?

Both tools are assessed across five compliance dimensions. Glean has a regulatory fit score of 4/5 and Noxtua scores 5/5. Check the full comparison above for a detailed breakdown.

Explore Each Tool