About Us

Thank you for taking interest in us! BTD Service GmbH is a telecommunications service provider for commercial clients, and sets new benchmarks in customer-orientated, active mobile telecommunications and landline management as well as IT service management. Since its founding, BTD Service GmbH’s support and service concept boasts over 70,000 mobile users and approx. 1,000 telephone connections and systems in Germany.

This means that BTD Service GmbH is one of the leading independent market and innovation leaders in their field.

In-depth specialisation in the needs of medium-sized companies mean that our customers benefit from independent advice and individual service in all areas of mobile communication, technical IT system service management, classic carrier services such as call and data solutions, the carrying out of carrier tenders and our ongoing services in cost and contract management.


Service Points

Successful communication solutions must go hand in hand with reliable service.

Reliable service begins with availability, fast reaction times and satisfactory support.

BTD Service and our reliable contractual partners have branches located all across the country so can offer you high availability around the clock, 365 days a year. We provide you with high levels of safety and operational reliability

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GriegerManaging Director

Michael Grieger is the Managing Director of BTD Service GmbH, based in Salzweg bei Passau. He has been responsible for Mobile Telecommunications and Landline Management as well as IT Services for Commercial Clients since 2003.

KröhlShareholder / Managing Director

Kersten Kröhl founded BTD Service GmbH, and is responsible for national and international projects as well as managing the Finance and Controlling department, among other things.

Kersten, born 1968, founded BTD Telekommunikation (former BTD Groups first realisation) as one of the earliest independent telecommunication service provider for business clients in1997 as managing director together with his former business partner Stefan Leibhard. In the following years business units for Newmedia, IT-Services and consulting for digital platforms and IT-operations for famous international football clubs and stadia were added successfully. In his career Kersten was also responsible for several start-ups in telecommunication that were placed successfully in the market as part of a structured M&A process. Today Kersten is working for his own company BTD Service as strategic and financial director and is engaged in various social projects and start-ups that intend to make the world a better place.

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+49 851 987915-0