For over 25 years, Gerhard Berkey has advised well-known companies on increasing their competitiveness. He has worked as a freelance business consultant since 1984.

At the start of the 90s, Gerhard Berkey founded the "Büro für Zeitwirtschaft", which he has successfully managed ever since.

Büro für Zeitwirtschaft

Gerhard Berkey

Postbox 1166

D-58401 Witten

Telephone & fax: *49 (0) 2302 - 275892

eMail: info22(ät)