T-Systems Reviews, Ratings & Features 2026 | Gartner Peer Insights

Gartner defines the data center outsourcing (DCO) services market as a comprehensive suite of services that support deployment, consolidation, optimization, modernization and managed services. These services primarily cater to data centers, private clouds, edge computing, ERP hosting, mainframes or legacy systems, midrange systems, infrastructure modernization, network and security. Organizations with such environments engage with DCO service providers to enhance efficiency, improve agility, optimize costs, strengthen security — physical, data and cyber — and realize substantial modernization benefits.

Data center outsourcing refers to the strategic decision by organizations to delegate data center operations to a third-party service provider. Adopting this approach assists organizations with prioritizing their core business activities while capitalizing on the advanced technologies, operational expertise, best-in-class performance metrics and cost-efficiencies offered by vendors, compared to insourced best efforts.

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Data Center Outsourcing Services

T-Systems Data Center Outsourcing Services

T-Systems

I&O Leader

T&T was done in record time without disruptions.
Transition to BAU has been smooth, continuos incremental improvements managed over the first year e.g. patching&compliance, cost optimization.

30B + USD

3B - 10B USD

<50M USD

250M - 500M USD

500M - 1B USD

1B - 3B USD

10B - 30B USD

Gov't/PS/ED 5,000 - 50,000 Employees

50M - 250M USD

Gov't/PS/ED <5,000 Employees

Availibility OK, but less SaaS, Innovation is less, Service is OK, Great in Marketing, MoD and Customer Success Manager do a great Job

Sr Product Director

Solid execution project wise, very few complications and good support from the different cross teams.

Atos

Accenture

Other...

Hewlett Packard Enterprise (HPE)

DXC Technology

Capgemini

Tata Consultancy Services (TCS)

Fujitsu

HCLTech

Infosys

Unisys

Wipro

NTT Group

Orange Business

Cognizant

HP Enterprise Services

NTT DATA Group

Sopra Steria

Tech Mahindra

Tietoevry

plusserver

The Deutsche Telekom subsidiary is headquartered in Germany and has a presence in Europe as well as in selected core markets and strategic production locations. T-Systems can provide a global production and supply chain to companies operating worldwide. The portfolio of services includes secure operation of traditional IT infrastructures, migration to Privately Held cloud and Public Company cloud environments of hyperscalers (including Microsoft Azure, AWS, Google Cloud) and Open Telekom Cloud (OTC), as well as management of hybrid and multi-cloud infrastructures. T-Systems integrates customized platforms, industry-specific applications and innovative technologies such as artificial intelligence (AI), big data and blockchain into these infrastructures. To achieve this, the Telekom subsidiary works closely with global technology partners. T-Systems pursues a holistic approach: consulting (advisory) and solutions from the areas of digital, security and cloud services are offered from a single source. 

Your partner for digitization! 

With locations in more than 20 countries and over 27,000 employees (December 31, 2022), as well as annual revenues of around EUR 4.0 billion (2022), T-Systems is one of the leading providers of digital services in Europe. The Deutsche Telekom subsidiary is headquartered in Germany and has a presence in Europe as well as in selected core markets and strategic production locations. T-Systems can provide a global production and supply chain to companies operating worldwide. 

T-Systems offers integrated end-to-end IT solutions, driving the digital transformation of companies in all industries and the public sector. T-Systems√¢‚Ç¨‚Ñ¢ focus industries are automotive, the public sector, healthcare and transport. For these areas, T-Systems develops industry-specific solutions: the so-called vertical applications.

The digital transformation doesn√¢‚Ç¨‚Ñ¢t just happen on its own. It requires a spark to come to life.

YOU can be the trigger for this transformation that enriches people√¢‚Ç¨‚Ñ¢s lives. We believe in doing work that matters, because each and every one of us can move society forward.

To achieve this, we offer you Growthtopia: A world of opportunities, new ideas and challenges where your horizons are determined by your own personal vision. You have the chance to grow continually and reach your highest potential. With us as a certified Top Employer you can fulfil your ambitions supported by a global network of experts. Let√¢‚Ç¨‚Ñ¢s grow together and make the world a better place through digital solutions. Because Growthtopia is more than just an ideal √¢‚Ç¨‚Äú it√¢‚Ç¨‚Ñ¢s an ever-evolving reality.   

Become one of us: https://www.t-systems.com/de/en/careers/why-t-systems

Imprint: https://www.t-systems.com/de/en/imprint






T-Systems International

Reviews

Ratings Overview

Overall experience with

Favorable Review

A solid company willing to go the extra mile.

Critical Review

Cheap, high availability

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