T-Systems International GmbH

Germany · owned by Deutsche Telekom AG (Germany) · www.t-systems.com · 11 vendors

T-Systems International GmbH is a leading European ICT provider and subsidiary of Deutsche Telekom, delivering digitalization projects and offering consulting, cloud services, AI, cybersecurity, and connectivity solutions to businesses and institutions. With more than 25,000 employees across 26 countries, the company serves clients in industries such as automotive, healthcare, manufacturing, public sector, and financial services. T-Systems is headquartered in Frankfurt am Main, Germany, and is known for its focus on digital sovereignty, secure cloud infrastructure, and SAP and network solutions.

Resilience scores

Disruption prediction

T-Systems International GmbH has an estimated 11% probability of disruption in the next 6 months.

5 of T-Systems International GmbH's 11 vendors monitored for disruptions.

Technology vendors

Services catalogue

5 services in catalogue across 3 categories; runs on 11 sub-vendors.

Insights

Last updated 2026-08-15 · revision 1

11 direct vendors, 160 subvendors

Direct vendors by controlling owner country (sample)

Subvendors by controlling owner country (sample)

Migration Readiness: 9/10

Assessed by AI based on technology stack characteristics (cloud-native vs legacy, containerization, microservices), regulatory environment, data residency requirements, financial stability, and vendor lock-in risks. The score ranges from 0-10, where higher scores indicate better readiness for technology migration.

T-Systems exhibits very high migration readiness, primarily driven by its core business offerings and internal technological capabilities. The company's extensive use of cloud-native technologies, including AWS, Azure, GCP, Kubernetes, and Docker, both internally and in its product portfolio, demonstrates a strong foundation for cloud adoption. Key services such as 'Managed Cloud Services (AWS, Azure, Google Cloud)', 'SAP Solutions (RISE with SAP & S/4HANA Migration)', and 'Mainframe & Cloud Transformation' directly showcase its expertise in facilitating complex migrations. The focus on 'Multi-Cloud & Hybrid Cloud Architecture' and 'Kubernetes & Container Orchestration' as key technologies further underscores its modern approach. Internally, the use of automation tools like Terraform and Ansible, alongside hyperscaler platforms, indicates a practical application of migration best practices. While specific data residency requirements and regulatory environments are not detailed, T-Systems' emphasis on sovereign cloud and GDPR compliance suggests a strong capability to navigate such complexities. The 'Vendor Lock-in Risk: Unknown' is a minor detractor, but T-Systems' multi-cloud strategy and diverse service offerings inherently mitigate the risk of being overly dependent on a single vendor, indicating high flexibility. The absence of financial stability data is a limitation, but the company's robust service portfolio and strategic consulting capabilities (Detecon) suggest ample resources and expertise to fund and execute migrations.

Compliance

10 in-scope frameworks identified; showing 3.

ISO 27001 (source) — Compliant

Risk is Low because T-Systems has confirmed ISO/IEC 27001 certification, which is the internationally recognized gold standard for information security management. The certification is held under the umbrella certificate of Deutsche Telekom AG, ensuring group-wide governance. As a large ICT provider processing sensitive customer data across 26 countries, ISO 27001 is both a regulatory expectation and a commercial necessity. The certification is managed by DTAG's global Certification Management Team, ensuring systematic maintenance and renewal. The risk of non-compliance is minimal given the active certification status, the scale of investment in security infrastructure (dedicated Cyber Defense, SOC, security portfolio), and the complementary certifications (ISO 27017, ISO 27018, ISO 27701) that extend the ISMS framework.

Evidence: https://www.t-systems.com/de/en/company/about-t-systems/t-systems-certificates, https://www.t-systems.com/de/en/security/solutions/governance-risk-compliance, https://www.t-systems.com/de/en/company/about-t-systems/profile

ISAE 3000 (source) — Assessment Required

Risk is Medium because: (1) T-Systems is a large ICT service provider whose customers (particularly in financial services, public sector, and healthcare) may require ISAE 3000 or ISAE 3402 assurance reports on controls at service organizations; (2) T-Systems holds an IDW PS 980 audit (German equivalent to ISAE 3000 for compliance management systems), which demonstrates engagement with third-party assurance frameworks; (3) ISAE 3402 (controls at service organizations) is particularly relevant for T-Systems' managed services and cloud operations serving regulated industries; (4) No explicit ISAE 3000 or ISAE 3402 report was found in public disclosures; (5) The absence of a public ISAE 3000 report does not necessarily indicate non-compliance — such reports are often provided to customers under NDA rather than published publicly; (6) The IDW PS 980 audit (anti-corruption focus) is publicly available, suggesting T-Systems does engage with third-party assurance, but the scope may not cover all ISAE 3000-relevant areas.

Evidence: https://www.t-systems.com/de/en/company/about-t-systems/t-systems-certificates, https://www.t-systems.com/resource/blob/1174826/5ac7cdd83651025c24c601ada524f2b4/DL-Compliance-Management-Systeme-in-accordance-with-IDW-PS-980-EN-05-2026.pdf, https://www.t-systems.com/de/en/security/solutions/governance-risk-compliance

eIDAS Regulation — Compliant

Risk is Low because T-Systems (via Deutsche Telekom's TeleSec trust centre) holds confirmed eIDAS qualified trust service provider status, which is one of the most rigorous regulatory certifications in the EU digital services space. The certification is granted by the German supervisory body and listed on the EU Trust List. Regular ETSI audits by TÜV Informationstechnik GmbH confirm ongoing compliance. The eIDAS framework is directly relevant to T-Systems' trust services portfolio (digital certificates, electronic signatures, website authentication), and the company has demonstrated sustained compliance through multiple certification cycles.

Evidence: https://www.t-systems.com/de/en/company/about-t-systems/t-systems-certificates, https://www.telesec.de/en/service/downloads/pki-repository/, https://www.t-systems.com/de/en/success-stories/digital/gematik-digital-identity-for-the-healthcare-sector-with-idp

Financials

Three-year financials

Financial Resilience Score: 7/10

T-Systems International GmbH benefits from strong parent backing as a 100% subsidiary of Deutsche Telekom AG, a DAX 40 company with investment-grade credit ratings. This provides significant financing support, liquidity backstop, and shared services access. The company has returned to profitable growth after years of restructuring, with revenue climbing from approximately €3.7 billion to over €4.1 billion between 2022 and 2025, and order entry consistently exceeding revenue, indicating continued growth momentum. The company holds a strong European market position with over 25,000 employees across 26 countries and maintains sticky, long-term contracts with major enterprises including VW, Shell, DHL, Deutsche Bahn, and Boehringer Ingelheim. Strategic positioning in sovereign cloud, hyperscaler partnerships (AWS, Microsoft, Google), and SAP RISE Premium Supplier status supports the transition from legacy IT-outsourcing to higher-value cloud transformation services. However, resilience is tempered by continued exposure to legacy IT outsourcing with structural price erosion in mainframe and classic managed hosting. The company faces intense competition from larger global players like Accenture, Capgemini, Atos, IBM, TCS, Infosys, Wipro, and Kyndryl. Material intra-group revenue concentration with Deutsche Telekom, European wage inflation pressures, and ongoing restructuring provisions historically depressing earnings add further risk considerations.

Key strengths: 100% subsidiary of Deutsche Telekom AG (DAX 40, investment-grade), Scale: 25,000+ employees across 26 countries, Returned to profitable growth trajectory from 2022 onward, Strong sovereign cloud and hyperscaler partnerships (AWS, Microsoft, Google), SAP RISE Premium Supplier status, Sticky long-term enterprise customer base (VW, Shell, DHL, Deutsche Bahn), Order entry consistently above revenue indicating growth momentum, 119 leading rankings across 29 independent benchmark studies

Risk factors: Legacy IT outsourcing exposure with structural price erosion, Intense competition from Accenture, Capgemini, Atos, IBM, TCS, Infosys, Wipro, Kyndryl, Material intra-group revenue concentration with Deutsche Telekom, European wage inflation pressures on margins, Ongoing restructuring costs depressing reported earnings, Declining mainframe and classic managed hosting business, Cybersecurity and delivery execution risks typical of large IT integrators

Revenue by geography

Revenue by product/service

Workforce by country

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