LightOn

Sovereign enterprise GenAI platform deployed on-prem, air-gapped, or EU cloud

OVHcloud AI

European sovereign AI infrastructure—GPU compute and managed LLM APIs from France

LightOn

Excellent

22/25

OVHcloud AI

Excellent

25/25

Score Breakdown

DimensionLightOnOVHcloud AI

Data Residency

Where is your data stored and processed?

LightOn: Deploys on-premise, in customer VPC, or air-gapped on EU infrastructure, so data never leaves the customer's own security perimeter. Strongest possible residency posture.

OVHcloud AI: Exclusively European data centres with full EU sovereign cloud capabilities. SecNumCloud-qualified infrastructure for highest-sensitivity French public sector requirements. Multiple EU country options (France, Germany, UK, Poland). Maximum data residency score.

5/5

Deploys on-premise, in customer VPC, or air-gapped on EU infrastructure, so data never leaves the customer's own security perimeter. Strongest possible residency posture.

5/5

Exclusively European data centres with full EU sovereign cloud capabilities. SecNumCloud-qualified infrastructure for highest-sensitivity French public sector requirements. Multiple EU country options (France, Germany, UK, Poland). Maximum data residency score.

Legal Jurisdiction

Which laws govern the company and your data?

LightOn: French SA incorporated in France, listed on Euronext Growth Paris, with no US parent. Fully under EU/French jurisdiction.

OVHcloud AI: French SA incorporated under French law, subject to GDPR and EU AI Act as corporate law. No US parent, no CLOUD Act exposure. Founding member of GAIA-X. Active participant in EU sovereignty frameworks. Highest possible legal jurisdiction score.

5/5

French SA incorporated in France, listed on Euronext Growth Paris, with no US parent. Fully under EU/French jurisdiction.

5/5

French SA incorporated under French law, subject to GDPR and EU AI Act as corporate law. No US parent, no CLOUD Act exposure. Founding member of GAIA-X. Active participant in EU sovereignty frameworks. Highest possible legal jurisdiction score.

Data Retention & Training

Is your data used for model training?

LightOn: In-perimeter deployment means no customer data is sent out or used to train shared models, and retention is governed by the customer's own infrastructure. Scored 4 rather than 5 as public DPA/retention-control documentation is limited.

OVHcloud AI: Customer data fully isolated per project. Not used for cross-customer model training. Configurable retention, audit logging, and data deletion workflows. GDPR-compliant DPA included with all cloud services.

4/5

In-perimeter deployment means no customer data is sent out or used to train shared models, and retention is governed by the customer's own infrastructure. Scored 4 rather than 5 as public DPA/retention-control documentation is limited.

5/5

Customer data fully isolated per project. Not used for cross-customer model training. Configurable retention, audit logging, and data deletion workflows. GDPR-compliant DPA included with all cloud services.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

LightOn: Holds SOC 2 Type 1. ISO 27001 and SOC 2 Type II are not confirmed in published sources, and ANSSI SecNumCloud appears to be a positioning goal rather than a confirmed qualification.

OVHcloud AI: ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, HDS (healthcare data hosting), and SecNumCloud qualification. Among the most comprehensively certified European cloud providers. HDS makes OVHcloud suitable for French healthcare AI workloads.

3/5

Holds SOC 2 Type 1. ISO 27001 and SOC 2 Type II are not confirmed in published sources, and ANSSI SecNumCloud appears to be a positioning goal rather than a confirmed qualification.

5/5

ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, HDS (healthcare data hosting), and SecNumCloud qualification. Among the most comprehensively certified European cloud providers. HDS makes OVHcloud suitable for French healthcare AI workloads.

Regulatory Fit

Suitability for regulated industries and professional services

LightOn: Purpose-built for regulated and sovereign EU buyers, with public-sector and defense/aerospace references (CNES, Safran, French tax authority) and GDPR/AI Act alignment.

OVHcloud AI: Maximum regulatory fit for European organisations. SecNumCloud for French public sector and defence-adjacent workloads. HDS for healthcare. GDPR-native design. NIS2-aligned operational resilience. The strongest sovereignty profile of any managed AI infrastructure provider.

5/5

Purpose-built for regulated and sovereign EU buyers, with public-sector and defense/aerospace references (CNES, Safran, French tax authority) and GDPR/AI Act alignment.

5/5

Maximum regulatory fit for European organisations. SecNumCloud for French public sector and defence-adjacent workloads. HDS for healthcare. GDPR-native design. NIS2-aligned operational resilience. The strongest sovereignty profile of any managed AI infrastructure provider.

Total Score

22/25

25/25

Best For

LightOn

Best for EU-headquartered organisations needing maximum data sovereignty; regulated industries (CNIL, AMF); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment.

OVHcloud AI

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (ISO 27001, ISO 27017, ISO 27018); regulated industries (CNIL, ANSSI); privacy-conscious teams who need strong data retention controls.

Detailed Comparison

LightOn vs OVHcloud AI: Trust & Compliance Comparison

LightOn (LightOn, FR) scores 22/25 overall with a Gold (Excellent) trust badge. Sovereign enterprise GenAI platform deployed on-prem, air-gapped, or EU cloud. OVHcloud AI (OVHcloud, FR) scores 25/25 with a Gold (Excellent) trust badge. European sovereign AI infrastructure—GPU compute and managed LLM APIs from France.

Dimension-by-Dimension Breakdown

#### Data Residency

Both score equally at 5/5.

●LightOn (5/5): Deploys on-premise, in customer VPC, or air-gapped on EU infrastructure, so data never leaves the customer's own security perimeter. Strongest possible residency posture.

●OVHcloud AI (5/5): Exclusively European data centres with full EU sovereign cloud capabilities. SecNumCloud-qualified infrastructure for highest-sensitivity French public sector requirements. Multiple EU country options (France, Germany, UK, Poland). Maximum data residency score.

#### Legal Jurisdiction

Both score equally at 5/5.

●LightOn (5/5): French SA incorporated in France, listed on Euronext Growth Paris, with no US parent. Fully under EU/French jurisdiction.

●OVHcloud AI (5/5): French SA incorporated under French law, subject to GDPR and EU AI Act as corporate law. No US parent, no CLOUD Act exposure. Founding member of GAIA-X. Active participant in EU sovereignty frameworks. Highest possible legal jurisdiction score.

#### Data Retention & Training

OVHcloud AI leads with 5/5 vs 4/5.

●LightOn (4/5): In-perimeter deployment means no customer data is sent out or used to train shared models, and retention is governed by the customer's own infrastructure. Scored 4 rather than 5 as public DPA/retention-control documentation is limited.

●OVHcloud AI (5/5): Customer data fully isolated per project. Not used for cross-customer model training. Configurable retention, audit logging, and data deletion workflows. GDPR-compliant DPA included with all cloud services.

#### Certifications

OVHcloud AI leads with 5/5 vs 3/5.

●LightOn (3/5): Holds SOC 2 Type 1. ISO 27001 and SOC 2 Type II are not confirmed in published sources, and ANSSI SecNumCloud appears to be a positioning goal rather than a confirmed qualification.

●OVHcloud AI (5/5): ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, HDS (healthcare data hosting), and SecNumCloud qualification. Among the most comprehensively certified European cloud providers. HDS makes OVHcloud suitable for French healthcare AI workloads.

#### Regulatory Fit

Both score equally at 5/5.

●LightOn (5/5): Purpose-built for regulated and sovereign EU buyers, with public-sector and defense/aerospace references (CNES, Safran, French tax authority) and GDPR/AI Act alignment.

●OVHcloud AI (5/5): Maximum regulatory fit for European organisations. SecNumCloud for French public sector and defence-adjacent workloads. HDS for healthcare. GDPR-native design. NIS2-aligned operational resilience. The strongest sovereignty profile of any managed AI infrastructure provider.

Certifications at a Glance

Certification	LightOn	OVHcloud AI
HDS	No	Yes
ISO 27001	No	Yes
ISO 27017	No	Yes
ISO 27018	No	Yes
SOC 2 Type 1	Yes	No
SOC 2 Type II	No	Yes
SecNumCloud	No	Yes

Overall Verdict

OVHcloud AI has a clear trust advantage, scoring 25/25 compared to LightOn's 22/25. OVHcloud AI particularly excels in data retention & training, certifications.

Frequently Asked Questions

Which is better for EU compliance, LightOn or OVHcloud AI?

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

How do LightOn and OVHcloud AI compare on data residency?

LightOn scores 5/5 for data residency (Deploys on-premise, in customer VPC, or air-gapped on EU infrastructure, so data never leaves the customer's own security perimeter. Strongest possible residency posture.), while OVHcloud AI scores 5/5 (Exclusively European data centres with full EU sovereign cloud capabilities. SecNumCloud-qualified infrastructure for highest-sensitivity French public sector requirements. Multiple EU country options (France, Germany, UK, Poland). Maximum data residency score.).

Are LightOn and OVHcloud AI GDPR compliant?

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

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