Contractbook

Danish AI-powered contract lifecycle management for European businesses

Noxtua

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

Contractbook

Excellent

22/25

Noxtua

Excellent

25/25

Score Breakdown

DimensionContractbookNoxtua

Data Residency

Where is your data stored and processed?

Contractbook: EU data residency on AWS EU regions; Danish company with EU-compliant data processing

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.

4/5

EU data residency on AWS EU regions; Danish company with EU-compliant data processing

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?

Contractbook: Danish ApS, EU-incorporated, subject to Danish and EU law, no US parent

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).

5/5

Danish ApS, EU-incorporated, subject to Danish and EU law, no US parent

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?

Contractbook: No training on contract data; full GDPR Article 28 DPA available; customer-controlled retention

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.

5/5

No training on contract data; full GDPR Article 28 DPA available; customer-controlled retention

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.

Contractbook: SOC 2 Type II certified; ISO 27001 not yet confirmed; GDPR-native architecture

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; ISO 27001 not yet confirmed; GDPR-native architecture

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

Contractbook: Excellent fit for EU legal, procurement, and regulated industries; eIDAS-compliant e-signatures

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.

5/5

Excellent fit for EU legal, procurement, and regulated industries; eIDAS-compliant e-signatures

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

22/25

25/25

Best For

Contractbook

Best for EU-headquartered organisations needing maximum data sovereignty; regulated industries (Datatilsynet, CNIL); 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

Contractbook vs Noxtua: Trust & Compliance Comparison

Contractbook (Contractbook, DK) scores 22/25 overall with a Gold (Excellent) trust badge. Danish AI-powered contract lifecycle management for European businesses. 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 4/5.

●Contractbook (4/5): EU data residency on AWS EU regions; Danish company with EU-compliant data processing

●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

Both score equally at 5/5.

●Contractbook (5/5): Danish ApS, EU-incorporated, subject to Danish and EU law, no US parent

●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

Both score equally at 5/5.

●Contractbook (5/5): No training on contract data; full GDPR Article 28 DPA available; customer-controlled retention

●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.

●Contractbook (3/5): SOC 2 Type II certified; ISO 27001 not yet confirmed; GDPR-native architecture

●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

Both score equally at 5/5.

●Contractbook (5/5): Excellent fit for EU legal, procurement, and regulated industries; eIDAS-compliant e-signatures

●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	Contractbook	Noxtua
BSI C5	No	Yes
GDPR	Yes	No
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 Contractbook's 22/25. Noxtua particularly excels in data residency, certifications.

Frequently Asked Questions

Which is better for EU compliance, Contractbook or Noxtua?

Contractbook has a TrustKit score of 22/25 while Noxtua scores 25/25. Noxtua currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Contractbook and Noxtua compare on data residency?

Contractbook scores 4/5 for data residency (EU data residency on AWS EU regions; Danish company with EU-compliant data processing), 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 Contractbook and Noxtua GDPR compliant?

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

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