Litton Industries Inc.                                1964 - 1968

Apprenticeship Bus. Management                            

Verein Creditreform e.V.                         1968

COO (Publishing Company)                          

IBM Deutschland                                      1969 - 1996

Key Account / Sales Manager                                           

BRAIN Interational                                   1997 - 2001

Actual                                                         2001 -