Düsseldorf: Office
since 1979

Kaiser-Wilhelm-Ring 1
40545 Düsseldorf
Tel. +49 (0) 2 11 / 5 59 63-0
Fax +49 (0) 2 11 / 5 59 63-20
HKP-Ddf@T-Online.de
Your contact: Henning Kreitz and Thies Kreitz



Leipzig: Office and management
since 1992

Prellerstr. 62
04155 Leipzig
Tel. +49 (0) 3 41 / 5 93 59-0
Fax +49 (0) 3 41 / 5 93 59-20
HKP-Lpz@T-Online.de
Your contact: Henning Kreitz, Dr. Jutta Kreitz, Thies Kreitz



Zurich: Project office
since 2006

c/o Combiplan AG
Hertistr. 23
CH-8304 Wallisellen