Lexis+ AI

Hallucination-free AI legal research with authoritative LexisNexis sources

Celonis

AI-enhanced process mining and intelligence platform from Munich

Lexis+ AI

Strong

21/25

Celonis

Excellent

23/25

Score Breakdown

DimensionLexis+ AICelonis

Data Residency

Where is your data stored and processed?

Lexis+ AI: Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.

Celonis: EU data centres with on-premise option; German-headquartered

4/5

Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.

5/5

EU data centres with on-premise option; German-headquartered

Legal Jurisdiction

Which laws govern the company and your data?

Lexis+ AI: Parent company RELX PLC is UK/EU incorporated and regulated. LexisNexis US entity is incorporated in Delaware but operates under RELX's broader European governance framework, providing strong data protection oversight.

Celonis: German SE under EU law; strong DPA framework

4/5

Parent company RELX PLC is UK/EU incorporated and regulated. LexisNexis US entity is incorporated in Delaware but operates under RELX's broader European governance framework, providing strong data protection oversight.

5/5

German SE under EU law; strong DPA framework

Data Retention & Training

Is your data used for model training?

Lexis+ AI: Clear data retention policies aligned with legal professional requirements. Research queries and documents are not retained for AI training. Supports data processing agreements for enterprise law firms.

Celonis: No training on customer data; configurable retention; enterprise controls

4/5

Clear data retention policies aligned with legal professional requirements. Research queries and documents are not retained for AI training. Supports data processing agreements for enterprise law firms.

4/5

No training on customer data; configurable retention; enterprise controls

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Lexis+ AI: Holds SOC 2 Type II, ISO 27001, and ISO 27701 certifications. Strong certification portfolio appropriate for a platform handling confidential legal information.

Celonis: SOC 2 Type II, ISO 27001, ISO 27018 certified

4/5

Holds SOC 2 Type II, ISO 27001, and ISO 27701 certifications. Strong certification portfolio appropriate for a platform handling confidential legal information.

4/5

SOC 2 Type II, ISO 27001, ISO 27018 certified

Regulatory Fit

Suitability for regulated industries and professional services

Lexis+ AI: Excellent regulatory fit for law firms and legal departments. Compliance with bar association professional responsibility rules, GDPR, UK GDPR, and CCPA. Trusted by government agencies and Am Law 100 firms.

Celonis: Mature enterprise platform suitable for highly regulated industries

5/5

Excellent regulatory fit for law firms and legal departments. Compliance with bar association professional responsibility rules, GDPR, UK GDPR, and CCPA. Trusted by government agencies and Am Law 100 firms.

5/5

Mature enterprise platform suitable for highly regulated industries

Total Score

21/25

23/25

Best For

Lexis+ AI

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27018); regulated industries (BaFin, ICO); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment.

Celonis

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27701); regulated industries (FCA, SRA); privacy-conscious teams who need strong data retention controls.

Detailed Comparison

Celonis vs Lexis+ AI: Trust & Compliance Comparison

Celonis (Celonis, DE) scores 23/25 overall with a Gold (Excellent) trust badge. AI-enhanced process mining and intelligence platform from Munich. Lexis+ AI (LexisNexis, GB) scores 21/25 with a Silver (Strong) trust badge. Hallucination-free AI legal research with authoritative LexisNexis sources.

Dimension-by-Dimension Breakdown

#### Data Residency

Celonis leads with 5/5 vs 4/5.

●Celonis (5/5): EU data centres with on-premise option; German-headquartered

●Lexis+ AI (4/5): Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.

#### Legal Jurisdiction

Celonis leads with 5/5 vs 4/5.

●Celonis (5/5): German SE under EU law; strong DPA framework

●Lexis+ AI (4/5): Parent company RELX PLC is UK/EU incorporated and regulated. LexisNexis US entity is incorporated in Delaware but operates under RELX's broader European governance framework, providing strong data protection oversight.

#### Data Retention & Training

Both score equally at 4/5.

●Celonis (4/5): No training on customer data; configurable retention; enterprise controls

●Lexis+ AI (4/5): Clear data retention policies aligned with legal professional requirements. Research queries and documents are not retained for AI training. Supports data processing agreements for enterprise law firms.

#### Certifications

Both score equally at 4/5.

●Celonis (4/5): SOC 2 Type II, ISO 27001, ISO 27018 certified

●Lexis+ AI (4/5): Holds SOC 2 Type II, ISO 27001, and ISO 27701 certifications. Strong certification portfolio appropriate for a platform handling confidential legal information.

#### Regulatory Fit

Both score equally at 5/5.

●Celonis (5/5): Mature enterprise platform suitable for highly regulated industries

●Lexis+ AI (5/5): Excellent regulatory fit for law firms and legal departments. Compliance with bar association professional responsibility rules, GDPR, UK GDPR, and CCPA. Trusted by government agencies and Am Law 100 firms.

Certifications at a Glance

Certification	Celonis	Lexis+ AI
ISO 27001	Yes	Yes
ISO 27018	Yes	No
ISO 27701	No	Yes
SOC 2 Type II	Yes	Yes

Overall Verdict

Celonis has a clear trust advantage, scoring 23/25 compared to Lexis+ AI's 21/25. Celonis particularly excels in data residency, legal jurisdiction.

Frequently Asked Questions

Which is better for EU compliance, Lexis+ AI or Celonis?

Lexis+ AI has a TrustKit score of 21/25 while Celonis scores 23/25. Celonis currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Lexis+ AI and Celonis compare on data residency?

Lexis+ AI scores 4/5 for data residency (Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.), while Celonis scores 5/5 (EU data centres with on-premise option; German-headquartered).

Are Lexis+ AI and Celonis GDPR compliant?

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

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