Noxtua

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

LegalFly

Belgian legal AI that automates repetitive tasks and translates legalese

Noxtua

Excellent

25/25

LegalFly

Strong

19/25

Score Breakdown

DimensionNoxtuaLegalFly

Data Residency

Where is your data stored and processed?

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.

LegalFly: EU data centres; Belgian company with EU-only 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.

5/5

EU data centres; Belgian company with EU-only processing

Legal Jurisdiction

Which laws govern the company and your data?

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).

LegalFly: Belgian NV under EU law; essential for legal data sovereignty

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).

5/5

Belgian NV under EU law; essential for legal data sovereignty

Data Retention & Training

Is your data used for model training?

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.

LegalFly: No training on customer legal data; GDPR-compliant

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.

4/5

No training on customer legal data; GDPR-compliant

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

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.

LegalFly: No public certifications yet; Series A stage

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.

1/5

No public certifications yet; Series A stage

Regulatory Fit

Suitability for regulated industries and professional services

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.

LegalFly: EU-headquartered legal AI suitable for European law firms and legal departments

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.

4/5

EU-headquartered legal AI suitable for European law firms and legal departments

Total Score

25/25

19/25

Best For

Noxtua

Best for EU-headquartered organisations needing maximum data sovereignty; regulated industries (ICO); privacy-conscious teams who need strong data retention controls.

LegalFly

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

LegalFly vs Noxtua: Trust & Compliance Comparison

LegalFly (LegalFly, BE) scores 19/25 overall with a Silver (Strong) trust badge. Belgian legal AI that automates repetitive tasks and translates legalese. 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

Both score equally at 5/5.

●LegalFly (5/5): EU data centres; Belgian company with EU-only 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.

●LegalFly (5/5): Belgian NV under EU law; essential for legal data sovereignty

●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.

●LegalFly (4/5): No training on customer legal data; GDPR-compliant

●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 1/5.

●LegalFly (1/5): No public certifications yet; Series A stage

●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.

●LegalFly (4/5): EU-headquartered legal AI suitable for European law firms and legal departments

●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	LegalFly	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
TISAX	No	Yes

Overall Verdict

Noxtua has a clear trust advantage, scoring 25/25 compared to LegalFly's 19/25. Noxtua particularly excels in data retention & training, certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Noxtua or LegalFly?

Noxtua has a TrustKit score of 25/25 while LegalFly scores 19/25. Noxtua currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Noxtua and LegalFly compare on data residency?

Noxtua scores 5/5 for data residency (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.), while LegalFly scores 5/5 (EU data centres; Belgian company with EU-only processing).

Are Noxtua and LegalFly GDPR compliant?

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

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