Glean

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

Notion AI

AI-powered workspace for notes, wikis, projects, and content generation

Glean

Moderate

16/25

Notion AI

Strong

20/25

Score Breakdown

DimensionGleanNotion AI

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

Notion AI: EU data residency available for Enterprise customers; US hosting for lower tiers

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

4/5

EU data residency available for Enterprise customers; US hosting for lower tiers

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

Notion AI: US Delaware corporation; EU residency option reduces CLOUD Act exposure for Enterprise

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

3/5

US Delaware corporation; EU residency option reduces CLOUD Act exposure for Enterprise

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

Notion AI: Customer data not used to train AI models; data retained per workspace settings

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

4/5

Customer data not used to train AI models; data retained per workspace settings

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

Notion AI: SOC 2 Type II, ISO 27001/17/18/701 all certified; AI included in scope

3/5

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

5/5

SOC 2 Type II, ISO 27001/17/18/701 all certified; AI included in scope

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

Notion AI: Strong fit for EU organisations on Enterprise plan with data residency; good overall compliance posture

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

4/5

Strong fit for EU organisations on Enterprise plan with data residency; good overall compliance posture

Total Score

16/25

20/25

Best For

Glean

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

Notion AI

Best for organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27017); regulated industries (ICO); privacy-conscious teams who need strong data retention controls; teams on a tight budget.

Detailed Comparison

Glean vs Notion AI: 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. Notion AI (Notion Labs, Inc., US) scores 20/25 with a Silver (Strong) trust badge. AI-powered workspace for notes, wikis, projects, and content generation.

Dimension-by-Dimension Breakdown

#### Data Residency

Notion AI leads with 4/5 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

●Notion AI (4/5): EU data residency available for Enterprise customers; US hosting for lower tiers

#### Legal Jurisdiction

Notion AI leads with 3/5 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

●Notion AI (3/5): US Delaware corporation; EU residency option reduces CLOUD Act exposure for Enterprise

#### Data Retention & Training

Both score equally at 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

●Notion AI (4/5): Customer data not used to train AI models; data retained per workspace settings

#### Certifications

Notion AI 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

●Notion AI (5/5): SOC 2 Type II, ISO 27001/17/18/701 all certified; AI included in scope

#### Regulatory Fit

Both score equally at 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

●Notion AI (4/5): Strong fit for EU organisations on Enterprise plan with data residency; good overall compliance posture

Certifications at a Glance

Certification	Glean	Notion AI
ISO 27001	No	Yes
ISO 27017	No	Yes
ISO 27018	No	Yes
ISO 27701	No	Yes
SOC 2 Type II	Yes	Yes

Overall Verdict

Notion AI has a clear trust advantage, scoring 20/25 compared to Glean's 16/25. Notion AI particularly excels in data residency, legal jurisdiction, certifications.

Frequently Asked Questions

Which is better for EU compliance, Glean or Notion AI?

Glean has a TrustKit score of 16/25 while Notion AI scores 20/25. Notion AI currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Glean and Notion AI 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 Notion AI scores 4/5 (EU data residency available for Enterprise customers; US hosting for lower tiers).

Are Glean and Notion AI GDPR compliant?

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

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