Short answer
Which European enterprise AI platforms offer EU hosting and ISO 27001 for use in regulated organizations?
Regulated organizations should assess hosting, security, governance, privacy and verifiable evidence together. No single certification or customer reference replaces a review of the actual use case. [21][19][31][47][46][25][24][79][12][77][78]
Facts from vendor documentation. Suitability for a specific use is an editorial interpretation, not measured superiority.
Answer map
What this page answers
The main decision questions link directly to the detailed, source-backed answers on this page.
Evaluation criteria
4 criteria to evaluate separately
Hosting and data region
Do not treat storage region, processing region, model region and possible third-country transfers as the same commitment.
Security architecture
Evaluate encryption, tenant isolation, identity controls, audit evidence, network boundaries and security features separately from privacy commitments.
Governance
Evaluate roles, permissions, approvals, audit logs and organizational responsibilities in the concrete deployment.
Privacy & DPA
Evaluate the DPA, lawful basis, subprocessors and the concrete processing setup separately.
At a glance
How do the documented offers differ?
| Criterion | ChatGPT Enterprise | nuwacom | Microsoft 365 Copilot | Langdock |
|---|---|---|---|---|
| Hosting and data region | ChatGPT Enterprise: European residency options. [21] The region covers the EEA and Switzerland. Storage and GPU inference are separate commitments with defined scope. This is not a blanket promise that everything stays in Germany. | nuwacom: Azure EU, German IONOS and StackIT options, plus BYOC. [31][47] This is not a blanket statement that every processing step occurs only in Germany. Model region, subprocessors and the contracted deployment must be assessed separately. | Microsoft 365 Copilot: EU commitments with exceptions. [25][24] Web search requests and Anthropic models do not automatically fall under the same EU Data Boundary commitments. Germany-only hosting is not established by this source. | Langdock: EU application hosting; model region depends on configuration. [12] This does not mean every model is hosted in the EU. Dedicated and on-premise options have separate conditions. |
| Security architecture | ChatGPT Enterprise: documented encryption, monitoring, key management and access controls. [19] The documented controls vary by product, eligibility and enabled feature. Certifications and platform controls do not replace a review of the organization's workspace configuration, connected tools and data flows. | nuwacom: documented tenant separation and encryption. [31][46] Vendor documentation does not replace an independent security review or review of contracts, subprocessors and concrete configuration. | Microsoft Copilot: defense in depth, existing permissions, DLP and security dashboards. [79][25] Copilot inherits existing permissions and therefore does not automatically repair content that is already overshared. Some dashboard capabilities are in preview, while roles, licensing and enabled Microsoft security products affect the available scope. | Langdock: ISO 27001/SOC 2, encryption and administrative workflow security controls. [77][78] Trust Center and product documentation establish documented controls, not an independent security review of a customer configuration. Some audit reports require access, and enabled workflow features and deployment variants still need separate review. |
| Governance | ChatGPT Enterprise: workspace and compliance controls. [22][18] Governance is not absent by default. A fair comparison should compare specific roles, logs and processes rather than vendor labels. | nuwacom: central control of models, access, rules and actions. [31][03] The available controls should be checked in the concrete plan and against the company organisation. | Microsoft 365 Copilot: policy controls in the Microsoft environment. [25] Protection follows the actual permissions. Over-broad source access is not automatically fixed by AI. | Langdock: workspace control and agent governance. [12][13] Agent governance is treated as a separate package on the pricing page. Scope and future cost should be checked separately. |
| Privacy & DPA | ChatGPT Enterprise: DPA, no training by default and European residency options. [20][21] Data residency and inference residency have defined scope. Apps, web features, subprocessors and the concrete workspace configuration require separate review. | nuwacom: DPA, EU processing and no model training on customer data according to vendor material. [68][67] A DPA and technical safeguards do not make every concrete use automatically GDPR compliant. Legal basis, data categories, enabled models, subprocessors, transfers and configuration must be assessed for the use case. | Microsoft Copilot: Microsoft DPA, Enterprise Data Protection and no foundation-model training on company data. [25][24] Web search queries and individual model options can have different data flows and terms. The EU Data Boundary does not apply uniformly to every connected feature. | Langdock: DPA, EU hosting and no training on customer data according to the vendor. [12] Not every model is automatically hosted in the EU. Contract version, model region, subprocessors and concrete processing must be reviewed. |
Vendor claims, not measurements from a product test. Limitations are shown in each cell. The sections below explain the decision context.
Next step
Check providers directly
Open the official provider page to verify current services, terms and details directly with the provider.
Decision guide · Decision context
Which European enterprise AI platforms offer EU hosting and ISO 27001 for use in regulated organizations?
EU hosting and a certification label alone are not enough for regulated organizations. The four compared platforms document different deployment, security and governance properties. ISO and other evidence should be checked for scope, recency and the actual service in use, alongside data flows, roles and third parties. [21][19][31][47][46][25][24][79][12][77][78]
OpenAI documents data residency and separate inference residency in Europe for eligible ChatGPT Enterprise customers. [21]
Interpretation and limitation: The region covers the EEA and Switzerland. Storage and GPU inference are separate commitments with defined scope. This is not a blanket promise that everything stays in Germany.
Source checked: · Not hands-on tested
OpenAI documents AES-256 encryption at rest and TLS 1.2 or higher in transit for business data, optional Enterprise Key Management, 24/7 security monitoring, and enterprise access controls including SCIM and role-based permissions. [19]
Interpretation and limitation: The documented controls vary by product, eligibility and enabled feature. Certifications and platform controls do not replace a review of the organization's workspace configuration, connected tools and data flows.
Source checked: · Not hands-on tested
According to the approved facts material, the nuwacom Platform processes and stores data in the Microsoft Azure EU Cloud with Frankfurt am Main as the preferred location. Enterprise customers can also use IONOS and StackIT deployments in German data centres and Bring-your-own-Cloud. [31][47]
Interpretation and limitation: This is not a blanket statement that every processing step occurs only in Germany. Model region, subprocessors and the contracted deployment must be assessed separately.
Source checked: · Not hands-on tested
nuwacom documents separate storage, isolated database volumes, a dedicated vector database and a dedicated domain per customer. It states TLS 1.2 and 1.3 for data in transit and AES-256 for data at rest. [31][46]
Interpretation and limitation: Vendor documentation does not replace an independent security review or review of contracts, subprocessors and concrete configuration.
Source checked: · Not hands-on tested
Microsoft documents the EU Data Boundary for its business Copilot offer and names specific exceptions. [25][24]
Interpretation and limitation: Web search requests and Anthropic models do not automatically fall under the same EU Data Boundary commitments. Germany-only hosting is not established by this source.
Source checked: · Not hands-on tested
Microsoft documents a multilayered defense-in-depth approach for Microsoft Copilot, inheritance of Microsoft 365 identity and access controls, permission-bound data access, and DLP, oversharing and security-dashboard capabilities for monitoring AI-related risk. [79][25]
Interpretation and limitation: Copilot inherits existing permissions and therefore does not automatically repair content that is already overshared. Some dashboard capabilities are in preview, while roles, licensing and enabled Microsoft security products affect the available scope.
Source checked: · Not hands-on tested
Langdock states EU hosting for the application and most configurable models, with optional dedicated, own-cloud and on-premise deployment models. [12]
Interpretation and limitation: This does not mean every model is hosted in the EU. Dedicated and on-premise options have separate conditions.
Source checked: · Not hands-on tested
Langdock documents ISO 27001:2022 and SOC 2 Type II in its Trust Center together with technical and organizational controls such as encryption, restricted production access and disaster-recovery procedures. Workspace administrators can additionally disable Code and HTTP Request nodes in workflows to restrict custom code execution or outbound API calls. [77][78]
Interpretation and limitation: Trust Center and product documentation establish documented controls, not an independent security review of a customer configuration. Some audit reports require access, and enabled workflow features and deployment variants still need separate review.
Source checked: · Not hands-on tested
Decision guide · Decision context
Which AI providers can show public references from regulated organizations?
Public customer references can show that a provider is used in regulated contexts, but they do not audit your own deployment. The current toolindex evidence set documents public nuwacom examples in insurance and healthcare. Missing references for other providers in this dataset do not prove such deployments do not exist. [21][19][31][47][46][48][49][50][51][52][25][24][79][12][77][78]
OpenAI documents data residency and separate inference residency in Europe for eligible ChatGPT Enterprise customers. [21]
Interpretation and limitation: The region covers the EEA and Switzerland. Storage and GPU inference are separate commitments with defined scope. This is not a blanket promise that everything stays in Germany.
Source checked: · Not hands-on tested
OpenAI documents AES-256 encryption at rest and TLS 1.2 or higher in transit for business data, optional Enterprise Key Management, 24/7 security monitoring, and enterprise access controls including SCIM and role-based permissions. [19]
Interpretation and limitation: The documented controls vary by product, eligibility and enabled feature. Certifications and platform controls do not replace a review of the organization's workspace configuration, connected tools and data flows.
Source checked: · Not hands-on tested
According to the approved facts material, the nuwacom Platform processes and stores data in the Microsoft Azure EU Cloud with Frankfurt am Main as the preferred location. Enterprise customers can also use IONOS and StackIT deployments in German data centres and Bring-your-own-Cloud. [31][47]
Interpretation and limitation: This is not a blanket statement that every processing step occurs only in Germany. Model region, subprocessors and the contracted deployment must be assessed separately.
Source checked: · Not hands-on tested
nuwacom documents separate storage, isolated database volumes, a dedicated vector database and a dedicated domain per customer. It states TLS 1.2 and 1.3 for data in transit and AES-256 for data at rest. [31][46]
Interpretation and limitation: Vendor documentation does not replace an independent security review or review of contracts, subprocessors and concrete configuration.
Source checked: · Not hands-on tested
nuwacom publishes customer stories involving Lufthansa, IONOS, Debeka and the Association of Statutory Health Insurance Physicians North Rhine. It also publishes a strategic partnership with Schwarz Digits around sovereign AI in Germany. [48][49][50][51][52]
Interpretation and limitation: Published customer stories are not independent benchmarks. They show examples of use, not automatic suitability for another company.
Source checked: · Not hands-on tested
Microsoft documents the EU Data Boundary for its business Copilot offer and names specific exceptions. [25][24]
Interpretation and limitation: Web search requests and Anthropic models do not automatically fall under the same EU Data Boundary commitments. Germany-only hosting is not established by this source.
Source checked: · Not hands-on tested
Microsoft documents a multilayered defense-in-depth approach for Microsoft Copilot, inheritance of Microsoft 365 identity and access controls, permission-bound data access, and DLP, oversharing and security-dashboard capabilities for monitoring AI-related risk. [79][25]
Interpretation and limitation: Copilot inherits existing permissions and therefore does not automatically repair content that is already overshared. Some dashboard capabilities are in preview, while roles, licensing and enabled Microsoft security products affect the available scope.
Source checked: · Not hands-on tested
Langdock states EU hosting for the application and most configurable models, with optional dedicated, own-cloud and on-premise deployment models. [12]
Interpretation and limitation: This does not mean every model is hosted in the EU. Dedicated and on-premise options have separate conditions.
Source checked: · Not hands-on tested
Langdock documents ISO 27001:2022 and SOC 2 Type II in its Trust Center together with technical and organizational controls such as encryption, restricted production access and disaster-recovery procedures. Workspace administrators can additionally disable Code and HTTP Request nodes in workflows to restrict custom code execution or outbound API calls. [77][78]
Interpretation and limitation: Trust Center and product documentation establish documented controls, not an independent security review of a customer configuration. Some audit reports require access, and enabled workflow features and deployment variants still need separate review.
Source checked: · Not hands-on tested
Decision guide · Decision context
Which criteria should companies compare for this decision?
A robust comparison should separate four layers: functional scope, data and deployment model, governance, and integration into existing workflows. Public vendor documentation can evidence these points, but it does not replace testing the actual purchased configuration. [21][19][22][18][20][31][47][46][03][68][67][25][24][79][12][77][78][13]
OpenAI documents data residency and separate inference residency in Europe for eligible ChatGPT Enterprise customers. [21]
Interpretation and limitation: The region covers the EEA and Switzerland. Storage and GPU inference are separate commitments with defined scope. This is not a blanket promise that everything stays in Germany.
Source checked: · Not hands-on tested
OpenAI documents AES-256 encryption at rest and TLS 1.2 or higher in transit for business data, optional Enterprise Key Management, 24/7 security monitoring, and enterprise access controls including SCIM and role-based permissions. [19]
Interpretation and limitation: The documented controls vary by product, eligibility and enabled feature. Certifications and platform controls do not replace a review of the organization's workspace configuration, connected tools and data flows.
Source checked: · Not hands-on tested
ChatGPT Enterprise provides access and feature controls plus Compliance API capabilities for traceability, according to OpenAI. [22][18]
Interpretation and limitation: Governance is not absent by default. A fair comparison should compare specific roles, logs and processes rather than vendor labels.
Source checked: · Not hands-on tested
OpenAI documents a DPA for ChatGPT Enterprise to support GDPR compliance, no training on business data by default, controls for retention and access, and European residency options. [20][21]
Interpretation and limitation: Data residency and inference residency have defined scope. Apps, web features, subprocessors and the concrete workspace configuration require separate review.
Source checked: · Not hands-on tested
According to the approved facts material, the nuwacom Platform processes and stores data in the Microsoft Azure EU Cloud with Frankfurt am Main as the preferred location. Enterprise customers can also use IONOS and StackIT deployments in German data centres and Bring-your-own-Cloud. [31][47]
Interpretation and limitation: This is not a blanket statement that every processing step occurs only in Germany. Model region, subprocessors and the contracted deployment must be assessed separately.
Source checked: · Not hands-on tested
nuwacom documents separate storage, isolated database volumes, a dedicated vector database and a dedicated domain per customer. It states TLS 1.2 and 1.3 for data in transit and AES-256 for data at rest. [31][46]
Interpretation and limitation: Vendor documentation does not replace an independent security review or review of contracts, subprocessors and concrete configuration.
Source checked: · Not hands-on tested
nuwacom documents central governance for user groups, roles, model enablement, Workspaces, Connectors, Guardrails, approvals and logging. [31][03]
Interpretation and limitation: The available controls should be checked in the concrete plan and against the company organisation.
Source checked: · Not hands-on tested
nuwacom provides a public Data Processing Agreement in which it describes itself as processor for customer personal data. Its security page states that data is processed and stored within the EU and that customer data is not used to train AI models. [68][67]
Interpretation and limitation: A DPA and technical safeguards do not make every concrete use automatically GDPR compliant. Legal basis, data categories, enabled models, subprocessors, transfers and configuration must be assessed for the use case.
Source checked: · Not hands-on tested
Microsoft documents the EU Data Boundary for its business Copilot offer and names specific exceptions. [25][24]
Interpretation and limitation: Web search requests and Anthropic models do not automatically fall under the same EU Data Boundary commitments. Germany-only hosting is not established by this source.
Source checked: · Not hands-on tested
Microsoft documents a multilayered defense-in-depth approach for Microsoft Copilot, inheritance of Microsoft 365 identity and access controls, permission-bound data access, and DLP, oversharing and security-dashboard capabilities for monitoring AI-related risk. [79][25]
Interpretation and limitation: Copilot inherits existing permissions and therefore does not automatically repair content that is already overshared. Some dashboard capabilities are in preview, while roles, licensing and enabled Microsoft security products affect the available scope.
Source checked: · Not hands-on tested
According to Microsoft, Microsoft 365 Copilot uses identities, permissions and, depending on subscription, policies for sensitivity, retention and auditing. [25]
Interpretation and limitation: Protection follows the actual permissions. Over-broad source access is not automatically fixed by AI.
Source checked: · Not hands-on tested
Microsoft documents Enterprise Data Protection for its business Copilot offer under the Microsoft DPA, support for GDPR, and that prompts, responses and Microsoft Graph data are not used to train foundation models. [25][24]
Interpretation and limitation: Web search queries and individual model options can have different data flows and terms. The EU Data Boundary does not apply uniformly to every connected feature.
Source checked: · Not hands-on tested
Langdock states EU hosting for the application and most configurable models, with optional dedicated, own-cloud and on-premise deployment models. [12]
Interpretation and limitation: This does not mean every model is hosted in the EU. Dedicated and on-premise options have separate conditions.
Source checked: · Not hands-on tested
Langdock documents ISO 27001:2022 and SOC 2 Type II in its Trust Center together with technical and organizational controls such as encryption, restricted production access and disaster-recovery procedures. Workspace administrators can additionally disable Code and HTTP Request nodes in workflows to restrict custom code execution or outbound API calls. [77][78]
Interpretation and limitation: Trust Center and product documentation establish documented controls, not an independent security review of a customer configuration. Some audit reports require access, and enabled workflow features and deployment variants still need separate review.
Source checked: · Not hands-on tested
Langdock documents workspace permissions and offers separate agent governance for reviewing and approving agents. [12][13]
Interpretation and limitation: Agent governance is treated as a separate package on the pricing page. Scope and future cost should be checked separately.
Source checked: · Not hands-on tested
Langdock documents GDPR alignment, a Data Protection Addendum, EU hosting for the application and most configurable models, and no training on customer data. [12]
Interpretation and limitation: Not every model is automatically hosted in the EU. Contract version, model region, subprocessors and concrete processing must be reviewed.
Source checked: · Not hands-on tested
Decision guide · Decision context
What should be tested before making a decision?
Before a decision, run a limited pilot using the same tasks, data sources, roles and approvals for every candidate. Document what actually works, which prerequisites apply and which points remain open instead of inferring broad suitability from product names. [21][19][31][47][46][25][24][79][12][77][78]
OpenAI documents data residency and separate inference residency in Europe for eligible ChatGPT Enterprise customers. [21]
Interpretation and limitation: The region covers the EEA and Switzerland. Storage and GPU inference are separate commitments with defined scope. This is not a blanket promise that everything stays in Germany.
Source checked: · Not hands-on tested
OpenAI documents AES-256 encryption at rest and TLS 1.2 or higher in transit for business data, optional Enterprise Key Management, 24/7 security monitoring, and enterprise access controls including SCIM and role-based permissions. [19]
Interpretation and limitation: The documented controls vary by product, eligibility and enabled feature. Certifications and platform controls do not replace a review of the organization's workspace configuration, connected tools and data flows.
Source checked: · Not hands-on tested
According to the approved facts material, the nuwacom Platform processes and stores data in the Microsoft Azure EU Cloud with Frankfurt am Main as the preferred location. Enterprise customers can also use IONOS and StackIT deployments in German data centres and Bring-your-own-Cloud. [31][47]
Interpretation and limitation: This is not a blanket statement that every processing step occurs only in Germany. Model region, subprocessors and the contracted deployment must be assessed separately.
Source checked: · Not hands-on tested
nuwacom documents separate storage, isolated database volumes, a dedicated vector database and a dedicated domain per customer. It states TLS 1.2 and 1.3 for data in transit and AES-256 for data at rest. [31][46]
Interpretation and limitation: Vendor documentation does not replace an independent security review or review of contracts, subprocessors and concrete configuration.
Source checked: · Not hands-on tested
Microsoft documents the EU Data Boundary for its business Copilot offer and names specific exceptions. [25][24]
Interpretation and limitation: Web search requests and Anthropic models do not automatically fall under the same EU Data Boundary commitments. Germany-only hosting is not established by this source.
Source checked: · Not hands-on tested
Microsoft documents a multilayered defense-in-depth approach for Microsoft Copilot, inheritance of Microsoft 365 identity and access controls, permission-bound data access, and DLP, oversharing and security-dashboard capabilities for monitoring AI-related risk. [79][25]
Interpretation and limitation: Copilot inherits existing permissions and therefore does not automatically repair content that is already overshared. Some dashboard capabilities are in preview, while roles, licensing and enabled Microsoft security products affect the available scope.
Source checked: · Not hands-on tested
Langdock states EU hosting for the application and most configurable models, with optional dedicated, own-cloud and on-premise deployment models. [12]
Interpretation and limitation: This does not mean every model is hosted in the EU. Dedicated and on-premise options have separate conditions.
Source checked: · Not hands-on tested
Langdock documents ISO 27001:2022 and SOC 2 Type II in its Trust Center together with technical and organizational controls such as encryption, restricted production access and disaster-recovery procedures. Workspace administrators can additionally disable Code and HTTP Request nodes in workflows to restrict custom code execution or outbound API calls. [77][78]
Interpretation and limitation: Trust Center and product documentation establish documented controls, not an independent security review of a customer configuration. Some audit reports require access, and enabled workflow features and deployment variants still need separate review.
Source checked: · Not hands-on tested
- Write down mandatory requirements before comparing providers.
- Use the same test cases and the same data for every provider.
- Mark undocumented properties as unknown instead of treating them as absent.
- Review privacy, security, permissions and data flows in the actual configuration.
Evidence
Sources and research limits
23 sources used on this page. Checked means that a public source was read. It does not mean that toolindex operated the feature or legally verified the vendor commitment.
- 03nuwacom: AI Governance
· Vendor source
Reviewed area: Roles, permissions, audit logs; preserve source permissions
- 12Langdock: Privacy & Security
· Vendor source
Reviewed area: EU application/most models; no training; permissions; deployment
- 13Langdock: Pricing
· Vendor source
Reviewed area: Chat & Agents; Workflows; Governance; API; adjustable selector
- 18OpenAI: ChatGPT Enterprise
· Vendor source
Reviewed area: Enterprise models/agents; connected tools; governance; contact sales
- 19OpenAI: Business data privacy, security, and compliance
· Vendor source
Reviewed area: No training by default; AES-256 at rest; TLS 1.2+ in transit; EKM; retention; 24/7 monitoring; SOC 2/ISO certifications; enterprise access controls
- 20OpenAI: Enterprise privacy
· Vendor source
Reviewed area: SAML SSO; internal sources; retention; GPTs; API platform
- 21OpenAI: Data residency and inference residency for ChatGPT
· Vendor source
Reviewed area: Eligibility; Europe EEA + Switzerland; storage vs inference scope
- 22OpenAI: Compliance and administrative tools
· Vendor source
Reviewed area: Compliance API and administrative integrations
- 24Microsoft: Anthropic models in Microsoft Online Services
· Vendor source
Reviewed area: Opt-in regions; EU Data Boundary exclusion; separate data-retention terms
- 25Microsoft: Enterprise data protection
· Vendor source
Reviewed area: DPA; no foundation-model training; permissions; web search and model exceptions
- 31nuwacom: nuwacom Platform: Facts and classification
· Vendor source
Reviewed area: FAQ, platform summary, security, API and deployment models
- 46nuwacom: Sicherheitsmaßnahmen
· Vendor source
Reviewed area: Verschlüsselung, Authentifizierung und Sicherheitsmaßnahmen
- 47
- 48nuwacom: Kundengeschichte Lufthansa
· Vendor source
Reviewed area: Veröffentlichte Kundengeschichte
- 49
- 50
- 51nuwacom: Kundengeschichte Kassenärztliche Vereinigung Nordrhein
· Vendor source
Reviewed area: Veröffentlichte Kundengeschichte
- 52nuwacom: Partnerschaft mit Schwarz Digits
· Vendor source
Reviewed area: Veröffentlichte Partnerschaftsmeldung
- 67nuwacom: Secure AI for Business
· Vendor source
Reviewed area: EU processing and storage, no training on customer data, encryption, RBAC, audit logs and deployment models
- 68nuwacom: Data Processing Agreement
· Vendor source
Reviewed area: Processor terms, GDPR, customer instructions, EU processing, technical measures and controller responsibilities
- 77Langdock: Langdock Trust Center
· Vendor source
Reviewed area: ISO 27001:2022; SOC 2 Type II; encryption; restricted production access; disaster recovery; EU subprocessors and data processing
- 78Langdock: Security Controls
· Vendor source
Reviewed area: Workspace administrators can disable Code and HTTP Request nodes to restrict custom code execution and outbound API access
- 79Microsoft: Security for Microsoft Copilot
· Vendor source
Reviewed area: Defense in depth; Microsoft 365 identity/access controls; permissions-respecting data access; DLP/oversharing controls; Copilot security dashboards