About us

IMCoSTAR GmbH is managed by Dipl.Ing. (FH) Holger W. Mueller. He started his career in the late 70s with “Network Architectural Concepts” via the early 80s when so called Personal Computers started a trend bringing back the power of EDP to the place where the data occurred, at the workplaces of the employees.

His 30 years of vocational experience is divided in three important phases:

  • EDP Manager of dmdrogeriemarkt, Germany in the early 80s
  • Manager of PC Development and Application at Pfizer, Germany from the late 80s until the late 90s when he also started collecting experience in the area of Electronic Territory Management (ETMS), a predecessor of CRM
  • Senior Consultant at SAP, where he was working for more than ten years in CRM application area from the very first versions of SAP CRM application.


Customers about IMCoSTAR:

Your effort has really made a difference and increased the users trust in the data on the CRM and ISU systems.

A Sales & Service Manager of one of the leading energy groups in Northern Europe

Your were the key factor for the success of the whole SAP CRM roll-out!

A project manager of one of the world-wide largest SAP CRM projects