CERTIX IT-Security GmbH
- Walter-Gropius-Str. 10, 50126 Bergheim
- +49 (2236) 96642-41
- +49 (2236) 96642-49
CROCODIAL IT Security GmbH
- Arndtstraße 25, 22085 Hamburg
- +49 (40) 271661-0
- +49 (40) 271661-44
Helmich IT-Security GmbH
- Schulstr. 134, 45770 Marl
- +49 (2365) 50357-0
- +49 (2365) 503579000
IT-conTrust - document management & security
- Oderberger Str. 60, 10435 Berlin
- +49 (30) 7474578-0
- +49 (30) 7474578-1
F-IT Security and Audit Christoph Franke
- Kaltbrunner Straße 24, 78476 Allensbach
- +49 (7533) 91927-0
- +49 (7533) 91927-19
mns-security GbR
- Bahnhofstraße 1, 37327 Leinefelde
- +49 (3605) 542579
- +49 (3605) 542578
OctoGate IT Security Systems GmbH
- Technologiepark 32, 33100 Paderborn
- +49 (5251) 18040-50
Ernst & Young IT-Security GmbH
- Mergenthalerallee 10-12, 70499 Stuttgart
- +49 (711) 9881-0
- +49 (711) 9881-550
BalaBit IT Security Deutschland GmbH
- Stefan-George-Ring 29, 81929 München
- +49 (89) 93086477
- +49 (89) 93086467
isits AG International School of IT Security
- Huestr. 30, 44787 Bochum
- +49 (234) 927898-0
- +49 (234) 927898-20