- Access Management
- Application
- Automation
- Cloud
- Cloud Infrastructure
- Compliance
- Configuration Management
- Connectivity
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- Container Orchestration
- Enterprise
- Hybrid Cloud
- Hyperscaler
- Incident Response
- Industry
- Information and Communication Technology
- Internet of Things
- IT Governance
- Monitoring
- Network Operator
- on-premises
- Operational technology
- Outsourced
- Public Sector
- Quality of Service
- SecOps
- Segmentation
- Services
- Software-Defined Wide Area Network
- Standards
- Threat Detection
- Virtualization
- Wide Area Network
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Who is T-Systems International?
T-Systems International is an information and communications technology (ICT) service provider within the Deutsche Telekom Group focused on enterprise and public-sector digital infrastructure and managed services.
- Managed cloud and infrastructure services across public, private, and hybrid cloud environments (cloud infrastructure, managed services).
- Network and connectivity services including wide area networking, secure connectivity, and integration with Deutsche Telekom assets (enterprise networking).
- Cybersecurity services such as managed Security Operations (SecOps), consulting, and compliance support (security services).
- Digital solutions and consulting for industry-specific use cases, including Internet of Things (IoT), data-driven applications, and workplace digitalization (digital transformation services).
- Outsourcing, application management, and integration services for complex enterprise IT landscapes (IT outsourcing and integration).
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More About T-Systems International
T-Systems International operates as the enterprise-focused Information and Communication Technology (ICT) subsidiary of Deutsche Telekom, providing managed services and solutions for large organizations and public institutions. Its portfolio covers end-to-end infrastructure services, including DCO, cloud hosting, networking, and application management, with governance and service-level constructs tailored for complex multi-country environments. Enterprise customers typically engage T-Systems as a primary or strategic managed service partner for core IT workloads, regulated workloads, and integrated connectivity.
In cloud infrastructure (cloud infrastructure, managed services), T-Systems designs, implements, and operates private, public, and hybrid cloud environments, often integrating hyperscaler platforms with dedicated private infrastructure and on-premises (on-prem) systems. Architectures commonly incorporate virtualization platforms, container orchestration technologies, standard enterprise operating systems, and automation frameworks for provisioning, configuration management, and monitoring. The company also supports migration projects, cloud governance models, and cost management structures that align with enterprise risk and compliance requirements.
In networking (enterprise networking), T-Systems provides Wide Area Network (WAN), software-defined WAN where applicable, and secure remote access services integrated with Deutsche Telekom’s global backbone and regional access networks. Network architectures typically support Quality of Service (QoS) policies, segmentation, and integration with security controls such as firewalls, intrusion detection and prevention, and virtual private networks (VPNs). These services are positioned for organizations that require reliable connectivity between data centers, branch offices, cloud regions, and mobile workforces.
Cybersecurity offerings (security services) span managed SecOps, identity and access management consulting, threat detection, and incident response support. T-Systems generally aligns with common frameworks and standards used in enterprise security programs, and its services are used to extend customer SecOps with 24x7 monitoring, log analysis, and compliance reporting. These capabilities are often coupled with its network and hosting services to provide coordinated security controls across infrastructure layers.
Beyond infrastructure, T-Systems delivers digital solutions and consulting (digital transformation services) oriented around data, IoT, and workplace services. Typical engagements include integration of sensors and connected devices into existing IT landscapes, analytics workloads, and platforms for collaboration and digital workplaces. These services often require interfacing with industry protocols, enterprise middleware, and API-based integration patterns to link Operational technology (OT) with core business applications.
In the application and outsourcing domain (IT outsourcing and integration), T-Systems manages enterprise applications, legacy environments, and integration platforms. This includes operation and maintenance of business-critical systems, structured service transition, and adherence to IT service management (ITSM) practices. The company’s offerings are cataloged in marketplace terms across categories such as cloud infrastructure services, managed network services, security services, digital workplace, IoT and data solutions, and IT outsourcing and application management, enabling enterprise buyers to align T-Systems capabilities with specific architectural domains and sourcing strategies.
Our description of T-Systems International. Updated December 2025.
