onOffice Software AG
- Charlottenburger Allee 5, 52068 Aachen
- +49 (241) 44686-0
- +49 (241) 44686-250
open-office/berlin
- Planetenstr. 61, 12057 Berlin
- +49 (160) 3403336
Vicom Systems Corporate Office
- 3200 Bridge Parkway, 94065 Redwood City
- +49 (721) 650227-1500
- +49 (721) 650227-1150
Geocell Head office
- #3, Gotua Str. The riht riverside, 0160 Tbilisi
- +994 (32) 770100
- +994 (32) 770101
International Office Service
- Rosa Hofmann Straße 33, 5020 Salzburg
- +43 (662) 439-501
- +43 (662) 439-450
Vertu Regional Office
- Gartenstrasse 25-27, 61352 Deutschland
- +49 (6172) 67-1125
MatchOffice ApS
- Fischertwiete 2, 20095 Hamburg
- +49 (40) 32005429
ePromoOffice BV
- Koperstraat 3, 6291 AH Vaals Niederlande
- +31 (43) 3063612
- +31 (43) 3063612
MOBILE OFFICE SAS
- 42, rue du Faubourg Poissonnière, 75010 Paris
- +33 (1) 482444-48
- +33 (1) 482448-22
ATI - Germany Office
- Heltorfer Strasse 1 a, 40472 Duesseldorf
- +49 (211) 513-5600