Compare Open Telekom Cloud and SAP on capabilities, jurisdiction, assurance, and fit for European buyers.
Both listed as alternatives to: Microsoft Azure
Germany· Cloud Computing
Needs review
Shortlist when you need a German Telekom/T-Systems OpenStack public cloud with DE/NL/CH regions and a strong BSI C5/ISO/TISAX package for regulated or public-sector workloads. Skip when you need hyperscaler global PaaS breadth or pure self-hosted OpenStack—consider OVHcloud, Scaleway, or AWS/Azure for those cases.
Germany· Cloud Computing
Needs review
Shortlist SAP when you need S/4HANA-class ERP breadth under a German parent entity and can fund a structured implementation. Skip when you want lightweight self-serve finance SaaS without a transformation partner. Consider Salesforce when CRM is the system of record, or a Microsoft Dynamics / Azure-centric stack when identity and productivity are already standardised on Microsoft.
Highlighted rows differ between the two products.
| Feature | Open Telekom Cloud | SAP |
|---|---|---|
| Country of origin | Germany | Germany |
| Category | Cloud Computing | Cloud Computing |
| Open source | No | No |
| Self-hosted | No | Yes |
| Headquarters | Germany | Germany |
| Legal entity | T-Systems International GmbH (Deutsche Telekom group); product marketed as T Cloud Public / Open Telekom Cloud | SAP SE, Dietmar-Hopp-Allee 16, 69190 Walldorf (Mannheim HRB 719915) |
| Governing law | German / EU law for the cloud service (confirm contract) | German entity; order forms may name local SAP affiliates |
| US parent / control | No known US parent | No known US parent |
| CLOUD Act exposure (indicative) | Low | Medium |
| EU-hosted status | Not listed | Partial |
| Hosting / residency | Primary: Telekom/T-Systems twin-core data centers in Germany (Biere/Magdeburg), Netherlands (Amsterdam region), and Switzerland (Bern/Zollikofen). No public indication that AWS, Azure, or GCP is the primary IaaS host. Backups/DR via platform multi-AZ services. Full public subprocessor table not found—request DPA annex. Historical Huawei technology partnership is supply-chain diligence, not US-cloud hosting. | Mixed: SAP-operated data centers (including Walldorf / St. Leon-Rot, Germany) plus Enterprise Cloud Services documented on AWS, Microsoft Azure, Google Cloud Platform, or customer data centers. Product-specific subprocessor lists are primarily on My Trust Center for customers. |
| Summary | Deutsche Telekom / T-Systems sovereign European public cloud (now marketed as T Cloud Public): OpenStack-based IaaS and platform services in Germany, Netherlands, and Swiss regions with BSI C5, ISO, and SOC attestations. | German-headquartered enterprise ERP suite (SAP Cloud ERP / S/4HANA) for finance, supply chain, procurement, and HR. |
| Tags |
| At a glance | Open Telekom Cloud | SAP |
|---|---|---|
| HQ / operator | Germany — T-Systems / Deutsche Telekom | Not listed |
| Current brand | T Cloud Public (formerly Open Telekom Cloud) | Not listed |
| Platform | OpenStack-based public cloud | Not listed |
| Regions | Germany (Biere/Magdeburg), Netherlands, Switzerland | Not listed |
| Commercial model | Pay-as-you-go (+ optional discounts/reservations) | Enterprise subscription and licences (quote-based) |
| Self-host | No — managed public cloud | Not listed |
| HQ | Not listed | Walldorf, Germany |
| Legal entity | Not listed | SAP SE (HRB 719915 Mannheim) |
| Product focus | Not listed | Cloud ERP / S/4HANA |
| Open source | Not listed | No |
| Data residency regions | Not listed | Customer-selectable; Americas, Europe, Asia Pacific (incl. SAP DE sites and hyperscalers) |
| Compliance certs (claimed) | Not listed | ISO 27001, SOC 1/2, BSI C5, plus regional attestations via Trust Center |
| Key capabilities | Open Telekom Cloud | SAP |
|---|---|---|
| EU-operated (T-Systems) | Yes | Yes |
| OpenStack public IaaS | Yes | Not listed |
| BSI C5 Type II (claimed) | Yes | Not listed |
| DE / NL / CH regions | Yes | Not listed |
| GPU + ModelArts AI | Yes | Not listed |
| Pay-as-you-go | Yes | Not listed |
| Full ERP suite | Not listed | Yes |
| S/4HANA Cloud | Not listed | Yes |
| ISO 27001 (claimed) | Not listed | Yes |
| B2B DPA published | Not listed | Yes |
OpenStack public cloud with Elastic Cloud Server and GPUs
Self-service IaaS on OpenStack: Elastic Cloud Server flavors from general-purpose to GPU shapes for AI/ML and graphics, plus Dedicated Host and Bare Metal where the region supports them. Provision via console, API, or automation; Auto Scaling for metric-driven capacity. Suited to production VMs and hybrid patterns that need European operator control rather than a thin VPS plan.
Multi-AZ object, block, and file storage in EU regions
Object Storage Service provides S3-compatible multi-AZ object storage; Elastic Volume Service attaches block disks with snapshots; Scalable File Service offers NFS shared filesystems. Cloud Backup and Recovery and related services back up VMs and volumes into platform object storage. Pin workloads to DE, NL, or Swiss regions according to residency policy.
VPC networking, Direct Connect, and security services
Virtual Private Cloud isolation, Elastic Load Balancer, VPN, NAT, Enterprise Router, and Direct Connect for high-bandwidth hybrid links. Security stack includes Anti-DDoS, WAF, Cloud Firewall, Host Security Service, and Key Management Service with bring-your-own-key options—useful for regulated network architectures without leaving Telekom-operated regions.
Cloud Container Engine and managed data services
Cloud Container Engine runs Kubernetes-managed clusters and images; companion services cover container instances and registries. Relational Database Service supports MySQL, PostgreSQL, and Microsoft SQL with HA and backup patterns; document, cache (Redis-class), MapReduce, and search services extend the data plane. Service availability differs between DE and NL—check the regional matrix before design freezes.
ModelArts and sovereign AI positioning
ModelArts provides an end-to-end AI development path (data prep, training, deployment) on European infrastructure, with GPU-backed instances for training and inference. Aimed at teams that want model and training-data residency under the same European operator as their IaaS—confirm which AI services exist in your chosen region (several AI offerings are DE-focused).
Twin-core European data centers (DE, NL, CH)
Published regions: twin-core Germany (Biere/Magdeburg), Netherlands (Amsterdam area), and Switzerland (Bern/Zollikofen) for Swiss data residency. Vendor claims geo-redundant twin-core design, high availability targets, and renewable-powered German facilities. Not a global multi-continent footprint—by design for European sovereignty shortlists.
SAP S/4HANA Cloud ERP core
Public and private cloud editions cover finance, supply chain, procurement, sales, and related processes on an in-memory data model with role-based UX. Scope and extensibility differ between Public Edition (standardised) and Private Edition (closer to classic on-premises flexibility).
GROW and RISE packaging
SAP GROW targets organisations starting on standardised AI-enabled cloud ERP. RISE with SAP supports existing on-premises customers migrating toward cloud with transformation services. Packaging choice drives implementation shape more than feature marketing slides.
Integration via SAP BTP
SAP Business Technology Platform and Integration Suite provide APIs, iPaaS connectivity, and extension points to link SAP ERP with third-party and legacy systems. Expect integration projects rather than plug-and-play SMB connectors.
Selectable cloud regions and sovereign options
Customers can choose data center regions; SAP documents Americas, Europe, and Asia Pacific availability, including SAP-operated German sites and hyperscaler regions. Sovereign / regulated options (for example German IT-Grundschutz messaging for SAP-owned facilities) exist but must be contracted explicitly.
Trust Center compliance artifacts
SAP publishes ISO 27001, SOC, C5, and other certificates plus DPAs through the Trust Center and customer portals. Audit reports for specific services are often gated to customers rather than fully public PDFs.
| Assurance & compliance | Open Telekom Cloud | SAP |
|---|---|---|
| Independent security / no-logs audit | Not applicable IaaS platform—not a no-logs consumer VPN. Independent assurance is via ISO/SOC/C5-style audits rather than a no-logs report. | Not applicable ERP suite; not a no-logs privacy network product. Rely on SOC/ISO/C5 attestations instead. |
| ISO 27001 | Vendor claimed Vendor certifications page links ISO/IEC 27001 umbrella certificate PDF for download; re-verify serial/date in procurement. | Vendor claimed Trust Center lists ISO 27001 certificates for cloud services and publishes certificate finder entries (e.g. Central / Enterprise Cloud Services). |
| ISO/IEC 27017 (cloud security) | Vendor claimed Claimed with downloadable attestation PDF on certifications page. | Not listed |
| ISO/IEC 27018 (cloud PII) | Vendor claimed Claimed with downloadable attestation PDF on certifications page. | Not listed |
| SOC 2 / SOC 3 | Vendor claimed SOC 2 Type II (request report); SOC 3 public PDF linked on certifications page. SOC 1 Type II also claimed. | Vendor claimed SOC 1 and SOC 2 reports described on Trust Center; many reports customer-gated via SAP for Me / My Trust Center. |
| BSI C5 Type II | Vendor claimed Vendor claims BSI C5:2020 Type II (ISAE 3000); detailed report typically on request via audit-reports download flow. | Not listed |
| TISAX Level 3 | Vendor claimed Vendor states TISAX Level 3 for Germany and Netherlands regions. | Not listed |
| GDPR / EU data protection | Vendor claimed EU operator, EU/CH regions, ISO 27018/27701 claims, DPA language on marketing pages—confirm signed DPA for your entity. | Vendor claimed EU parent entity; Trust Center privacy pages and DPAs reference GDPR processing terms. |
| US CLOUD Act exposure (indicative) | Partial German Telekom/T-Systems operator, no known US parent of the cloud business, primary hosting on Telekom EU/CH data centers (not AWS/GCP/Azure). Not a legal clearance of zero extraterritorial risk. Historical Huawei tech partnership is separate supply-chain diligence. Not legal advice. | Partial German SAP SE parent with no known US parent, but Enterprise Cloud Services explicitly include AWS, Azure, and GCP paths. Medium exposure for hyperscaler-backed tenants. Not legal advice. |
| Data processing agreement (B2B) | Vendor claimed Vendor GDPR pages state DPA, TOMs, and audit reports available for B2B; obtain current signed pack—not fully self-serve public template verified here. | Vendor claimed SAP states it signs DPAs; Trust Center hosts Data Processing Agreement documents for cloud, support, and professional services. |
| EU AI Act | Partial Platform offers AI services (ModelArts) that may fall under customer AI Act obligations; OTC itself is infrastructure—not an automated high-risk AI system assessment by EuropeanStack. | Partial SAP publishes EU AI Act governance materials for Joule Agents and AI features; customer still must assess in-scope AI uses. |
| BSI C5 | Not listed | Vendor claimed Trust Center lists Cloud Computing Compliance Controls Catalogue (C5) audit reports among EU regional offerings. |
| Considerations & known limitations | Open Telekom Cloud | SAP |
|---|---|---|
| Historical Huawei technology partnership | Medium Platform launched with Huawei hardware/software partnership; residual stack components may still matter for sensitive public-sector RFPs. T-Systems states independent operation. Review supply-chain docs under NDA. | Not listed |
| Service catalog differs by region | Medium Several services (e.g. ModelArts, bare metal, some database/analytics SKUs) are unavailable in NL or limited to DE. Design against the live regional matrix, not the full marketing list. | Not listed |
| Limited public subprocessor table | Low Unlike some SaaS vendors, a complete public subprocessor inventory was not found on marketing pages. Request DPA annex and subcontractor list before high-assurance processing. | Not listed |
| Smaller global ecosystem than AWS/Azure/GCP | Low Expect fewer regions, fewer proprietary PaaS services, and a smaller marketplace than US hyperscalers. Migration tools and partner ecosystem exist but differ in depth. | Not listed |
| Brand transition OTC → T Cloud Public | Low Documentation, console URLs, and community still mix Open Telekom Cloud and T Cloud Public names. Factor rebrand into runbooks and vendor risk registers. | Not listed |
| Hyperscaler hosting is common | Not listed | Medium Even with a German parent, many cloud tenants run on AWS, Azure, or GCP. EU region selection does not remove US-group infrastructure operators from the path. Confirm contracted region and subprocessors. |
| Heavy implementation programmes | Not listed | Medium S/4HANA and RISE projects typically need partners, data migration, and process redesign. Poor fit if you expected self-serve SaaS onboarding. |
| Detailed subprocessor lists often customer-gated | Not listed | Low Public pages confirm lists exist on My Trust Center, but a full anonymous dump was not available in this research pass. Request the list for your exact cloud service before security sign-off. |
| Catalog category is Cloud Computing, not ERP | Not listed | Low EuropeanStack has no dedicated ERP category yet. This entry is filed under Cloud Computing as the closest existing slug. |
When: You need extensive bare-metal catalogs and a very large multi-country EU footprint
Consider: OVHcloud
Different operator (France) and product packaging; compare bare-metal and region maps.
When: You prefer developer-centric European cloud packaging outside the Telekom stack
Consider: Scaleway or Exoscale
Scaleway for FR/NL-oriented developer UX; Exoscale for Swiss multi-zone IaaS + managed K8s.
When: You need global regions, marketplace depth, or proprietary PaaS only hyperscalers provide
Consider: AWS, Microsoft Azure, or Google Cloud Platform
Accept US-parent CLOUD Act exposure and multi-region complexity in exchange for breadth.
When: You want German-market hosting adjacency with a different commercial/product mix
Consider: IONOS
Often compared for German buyers; validate IaaS depth vs OTC enterprise cloud features.
When: Your primary system of record is CRM and revenue operations, not manufacturing or complex finance
Consider: Salesforce
Stronger CRM depth; US parent and different compliance posture.
When: You already standardise on Microsoft identity, M365, and Azure and want ERP in that estate
Consider: Microsoft 365 / Azure-centric Dynamics stacks
Compare total cost of identity + productivity + ERP under one US vendor.
When: You need a smaller European mid-market ERP without S/4HANA transformation scope
Consider: Evaluate EU mid-market ERP vendors outside this catalog (no peer ERP slug listed yet)
Catalog currently lacks a direct European ERP alternative entry.