Zurich (Global HQ)

Räffelstrasse 29
8045 Zurich
Switzerland

t +41 58 100 10 10
f +41 58 100 10 11

 

24x7 Support

+800 00 724 000
+41 58 100 11 11
1-800-724-2407 (US toll free)

 

OS-CERT

emergency hotline
+41 58 100 12 34

 

Contact us

Sydney

68 Moncur Street
Woollahra
NSW 2025 Sydney
Australia

Open Systems of Switzerland, Ltd.

New York

7 World Trade Center
46th floor
250 Greenwich Street
New York, NY 10007
United States

t +1 (212) 266-0092