Data Protection

Information Security

External Data Protection Officer
External Information Security Officer
Penetration Testing

Contributions from
Holzhofer Consulting
self test
About us
We are a company located in Munich specialized on advisory services for data protection and information security. We provide external data protection officers, IT security officers and support our clients on audits and advise to all areas of data protection and information security.


Martin Holzhofer

Managing director

Data protection and information security expert, external Data Protection Officer, auditor, trainer
short CV

since 2011
Managing director, consultant for data protection and information security, external Data Protection Officer

2010 - 2011
Chief Information Security Officer, SupplyOn AG

2008 - 2010
Information Security Officer, Schwarz Finanz und Beteiligungs GmbH & Co. KG

2007 - 2007
Head of Department IT-Security and Data Protection, Kaufland Informationssysteme GmbH & Co. KG

2006 - 2007
Head of Production Support Network Security, Siemens AG

2004 - 2006
Team Manager Center for Information Security Services, Siemens Business Services GmbH & Co. OHG

2001 - 2003
Information Security Manager, Siemens Business Services GmbH & Co. OHG

1999 - 2000
Regional IT Specialist, Autodesk GmbH

1996 - 2000
Owner of IT-Service Holzhofer
Johanna Blidon

Consultant data protection

Certifizied Data Protection Officer (udiszert)
Data Protection Auditor DSA-TÜV

Petra Joringer

Consultant data drotection

Certifizied Data Protection Officer (udiszert)

Marlene Manich

Consultant data drotection

Master of Laws LL.M., LL.M. (UiO)
Nabil Möhr

Consultant data protection

Graduate in information law (FH), Certifizied Data Protection Officer (udiszert)
Joschua Volp

Consultant Datenschutz

Bachelor of Laws (LL.B.)
Certifications of our experts
  • Data Protection Officer (TÜV)
  • Data Protection Auditor DSA-TÜV
  • Certified Data Protection Officer (udiszert)
  • Certified Information Systems Security Professional (CISSP)
  • Certified Information Security Manager (CISM)
  • Certified Information Systems Auditor (CISA)
  • Certified in Risk and Information Systems Control (CRISC)
  • BSI ISO/IEC 27001:2005 Lead Auditor
  • Offensive Security Certified Expert (OSCE)
  • Offensive Security Certified Professional (OSCP)
  • Certified Ethical Hacker (CEH)
  • ITIL Foundation Certified
Foto Martin Holzhofer External Data Protection Officer „Data protection and information security are crucial for every company. Save costs in these challenging areas by an external data protection officer and information security expert. We are pleased to help.“

Martin Holzhofer,
Holzhofer Consulting GmbH
Tel. Holzhofer Consulting GmbH