For 20 years, Dieter Lange has been a sought-after speaker, trainerand coach for management and sales seminars at Bayer, Bertelsmann, Gruner & Jahr, IWC, Lindt & Sprüngli, Novartis, Siemens, Unilever and
many other companies in Europe, Asia and the USA. He acts as coach for top managers and executive boards in several top European companies.
Top Coach Dieter Lange indeed asks uncomfortable questions
promotes top performers like top athletes stern
Provoked, lectured and fascinated: Speaker Dieter Lange touched the right nerve. Sales Profi
The educational theory of Dieter Lange is prime. It is state of the art. Trend
What a lasting impression you have left behind! Financial Times
One of the 10 success makers in Germany. Focus
I do not remember witnessing such a level of interest and attention from H-B-S students. Harvard Business School
Dieter Lange is a lecturer at St. Gallen University, Harvard Business School, WHU Vallendar, ZFU-Zürich.