About this site

Information provided according to Sec. 5 German Telemedia Act (TMG):

Hartmann, Mathias und Partner
Sachverständiger BDSF, beratender Betriebswirt, Ingenieur
Erkrather Strasse 234a
40233 Düsseldorf

Registered as partnership.
Register authority: Amtsgericht Essen
Register number: PR2153

Represented by:

Detlef Hartmann
Stefan Mathias
Thomas Euring


Phone: +49 211 909871-0
Fax: +49 211 909871-9
E-Mail: info@hmpartner.de

Postal address:

Stettiner Strasse 15
47665 Sonsbeck



Professional indemnity insurance:

Provinzial Rheinland Versicherung AG
Provinzialplatz 1
40591 Düsseldorf

insurance covers:
European Union, Switzerland, Liechtenstein, Norway, Iceland

EU Arbitration:

The European Commission provides a platform for online arbitration:

Please find our e-mail address above.

Consumer disputes /general arbitration platforms:

We do not take part in online dispute resolutions at consumer arbitration boards.

Liability for Content:

As service providers, we are liable for our own content on these websites according to Sec. 7, paragraph 1 Telecommunications Digital Services Data Protection Act (TDDDG). However, according to Sec. 8 to 10 German Telecommunications Digital Services Data Protection Act (TDDDG), service providers are not obliged to permanently monitor submitted or stored information or to search for evidences that indicate illegal activities.

Legal obligations to remove information or to block use of information remain unchallenged. In this case, liability will start at the time of knowledge about a specific violation of law. Illegal contents will be removed immediately from the moment of notice.


Liable for content according to §18 Abs. 2 MStV:

Detlef Hartmann, Stefan Mathias, Thomas Euring
Erkrather Straße 234a
40233 Düsseldorf

Liability for Links:

Our offer includes links to external websites of third parties. As we have no influence on the content on those websites, we cannot guarantee for it. Providers or administrators of linked websites are always responsible for their own content.


Contents and compilations published on these websites by the providers are subject to German copyright laws. Reproduction, editing, distribution as well as the use of any kind outside the scope of the copyright law require written permission of the author or originator. Downloads and copies of these websites are permitted for private use only.
The commercial use of our content without permission of the originator is prohibited.

Copyright laws of third parties are respected as long as the contents on these websites do not originate from the provider. Contributions of third parties on this site are indicated as such. However, if you notice any violation of copyright law, please inform us. Such contents will be removed immediately.

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