If you need to speak to us or if you are visiting our offices, details are given below. Please note that we cannot accept goods returned to these offices and deliveries would be refused. The list is arrange in alphabetical order by (English) country name.


United States Office
Citizen Systems Corporation
1411 W. 190th Street, Suite 675
Gardena, CA 90248
Telephone No.: +1 310 781 1460 

Toll Free: + 1 800 421 6516

Click here for map and directions

Other Locations

Stuttgart Office (HQ)
Citizen Systems Europe
Otto-Hirsch-Brücken 17
70329 Stuttgart
Telephone No.: +49 (0)711 49032-0
Fax No.: +49 (0)711 49032-45

London Office
Citizen Systems Europe
Elizabeth House, 56-60 London Road
Staines-Upon-Thames, TW18 4HF
United Kingdom
Telephone No.: +44 (0)20 8893 1900
Fax No.: +44 (0)20 8893 0080

Japan (HQ)
Citizen Systems Japan Co., Ltd.
6-1-12, Tanashi-cho, Nishi-Tokyo-shi
Tokyo 188-8511

China (HQ)
Citizen Systems (H.K) Ltd.
4/F, Hung To Road, Kwun Tong
Kowloon Hong Kong