Management of the DATA CENTER GROUP

Ralf Siefen

Managing Director DATA CENTER GROUP

Together with Thomas Sting, Ralf Siefen founded the company
proRZ Rechenzentrumsbau in 2005, which is now a division of the DATA CENTER GROUP. During his professional career with the company Lampertz, he acquired a high level of competence and expertise in the planning and realization of data centres. For more than 12 years, he was responsible for the national and international project management as member of the executive board.

Then and now, his great passion is the design of future-proof, efficient, high-quality and secure data centres for small, medium-sized and big companies. As managing director, he is focussing on the technology, further development of the solution portfolio and the sales.

"Expert advice and the support of our clients with regard to the implementation of modular, highly available and efficient data centres coupled with the cooperative partnership are of utmost priority for our team. We protect IT“ (Ralf Siefen)

Thomas Sting

Managing Director DATA CENTER GROUP

Because of his long time professional experience in the fields of finance, sales and marketing, Thomas Sting, as authorized representative and member of the executive board of the security specialist Lampertz, was responsible for all sales and marketing activities.

Together with Ralf Siefen he founded the company proRZ Rechenzentrumsbau in 2005, nowadays a leading solution provider for the planning and realization of data centres in Germany. proRZ is a division of the international DATA CENTER GROUP. Thomas Sting is responsible for the commercial management. Additionally, he is focussing on the development of integrated concepts and strategies for the secure and efficient operational management of data centres.

"A solid commercial and financial basis is an important component not only for our group of companies but also for our customers and the company's success. It is the cornerstone for investments and the expansion of the service portfolio in order to ensure the required full services for integrated and secure operations of our customer's data centres". (Thomas Sting)


Phone +49 2741 9321-0

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