Josef-Wirmer Straße 1-3

D-53123 Bonn

Phone: +49 228 91 88-888

Fax: +49 228 91 88-993

Head of Office: Theo B. Jannemann

Your contact persons

Internet: www.dvgw-cert.com

Email: info(at)dvgw-cert.com 

Karl-Heine-Str. 109/111
D-04229 Leipzig

Phone: +49 341 24571-11

Fax: +49 341 24571-36

Head of Office: Dr.-Ing. Hartmut Krause

Internet: www.dbi-gut.de 

Email: info(at)dbi-gut.de

Halsbrücker Straße 34

D-09599 Freiberg

Phone: +49 3731-4195 300 

Fax: +49 3731-4195 319

Head of Office:

Dr.-Ing. Hartmut Krause

Prof. Dr.-Ing. Dimosthenis Trimis

Internet: http://en.dbi-gti.de/index.php?id=67

Email: info(at)dbi-gti.de  

Josef-Wirmer-Str. 1-3, 53123 Bonn
Phone:  +49 228 91 88-741
Fax: +49 228 91 88-748

Head of Office: Ralf Lanz

Your contact persons

Internet: http://www.dvgw-sc.de
Email:   info(at)dvgw-sc.de

Josef-Wirmer-Str. 3, 53123 Bonn
Postfach 14 01 51, 53056 Bonn

Phone: +49 228 91 91 4-0, Switchboard
Fax: +49 228 91 91 4-99, Sales Department

Head of Office: Martin Weyand, Stephan Maul

Order at Sales Department:
Phone: +49 228 91 91 4-23,  +49 228 91 91 4-24
Internet: http://www.wvgw.de
E-Mail: info(at)wvgw.de

Moritzstraße 26
D-45476 Mülheim a.d. Ruhr

Contact: Dr. Wolf Merkel

Phone: +49 228 40 303 100

Internet: http://www.iww-online.de/index.php/en/

Email:  info(at)iww-online.de