This website is a joint Internet presence of the following companies:


Am Hahnweg 8
01328 Dresden

Telephone: +49 351 26 37 300  | Fax: +49 351 26 37 308

Managing directors authorized to represent the company:
Pia von Ardenne-Lichtenberg
Klaus Löffler

Dresden Local Court:
Registration number: HRB 38159
Sales tax identification number: DE 319 86 2441

Weil Technology

Weil Technology GmbH
Neuenburger Straße 23
79379 Müllheim

Telephone: +49 7631 1809 0 | Fax: +49 7631 1809 149

Wolfgang Weil
Alexander Heissler

Registered in the Commercial Register of the Local Court of Freiburg: HRB 300317
Sales tax ID according to §27a Value Added Tax Act: DE811211053


Jopestr. 3
72072 Tübingen

Telephone: +49 7071 3663-301 | Fax: +49 7071 3663-333

Ulrich Zeltwanger

Local court Stuttgart – HRB 382313
VAT ID No: DE 220 121 218
Registered office of the company: Tübingen

This is a community website of cooperation partners within a network. We are not an association of persons, a partnership or a corporation, but rather operate independently.

Each sub-process requires a separate assignment from the company responsible for it. Each company is responsible for its own sub-process and carries out its sub-process independently of the upstream or downstream sub-processes.

Portal Management
Jopestr. 3
D-72072 Tübingen

Technical realization
VERDURE Medienteam GmbH
Marienstr. 23
D-70178 Stuttgart
Phone: +49 711 2172760

Data Protection Officer 
Kay Petzold
msg systems ag
Humboldtstraße 35
D-70771 Leinfelden-Echterdingen
Phone: +49 89 96101-1419

Legal notice

1. Content of the online offer

All details and information contained in our web pages have been researched and checked by ZELTWANGER Holding GmbH and the companies listed above. ZELTWANGER Holding GmbH accepts no responsibility for the up-to-dateness, correctness, completeness or quality of the information provided. Liability claims against ZELTWANGER Holding GmbH relating to material or immaterial damage caused by the use or non-use of the information provided or by the use of incorrect or incomplete information are excluded, unless ZELTWANGER Holding GmbH can be proven to have acted with intent or gross negligence. All offers are subject to change and non-binding. ZELTWANGER Holding GmbH expressly reserves the right to change, supplement, delete or temporarily or permanently cease publication of parts of the site or the entire site without prior notice.

2. References and links

In the case of direct or indirect references to external websites (“links”) that are outside of ZELTWANGER Holding GmbH’s area of responsibility, liability would only apply if ZELTWANGER Holding GmbH has full knowledge of illegal contents and would be able to prevent the visitors of its site from viewing those pages. ZELTWANGER Holding GmbH has no influence whatsoever on the current and future design or content of the linked pages. Therefore, it hereby expressly dissociates itself from all contents of all linked pages that were changed after the link was set. This statement applies to all links and references set within the own Internet offer. For illegal, incorrect or incomplete contents and especially for damages resulting from the use or non-use of such information, only the provider of the linked page is liable, not the one who has linked to the respective publication. We cannot assume any liability for the flawless operation of the sites linked by us. The opinions and recommendations on these pages do not necessarily reflect the opinion of ZELTWANGER Holding GmbH.

3. Copyright and trademark law 

The content and structure of the Internet pages are protected by copyright. Any reproduction of the pages, their content or data, in particular the use of texts, parts of texts or images, requires the prior written consent of ZELTWANGER Holding GmbH, unless reproduction is already permitted by law.

4. Data transfer 

ZELTWANGER Holding GmbH permits the transfer of texts into data files intended exclusively for the private use of a user. The transfer and use of data for other purposes requires the written consent of ZELTWANGER Holding GmbH. The information is provided by ZELTWANGER Holding GmbH without any representation or warranty of any kind, either express or implied. Also excluded are all implied warranties regarding merchantability, fitness for a particular purpose, or non-infringement of laws and patents. Even though we assume that the information we provide is accurate, it may still contain errors or inaccuracies. We expressly point out that the products shown do not always have to correspond to the country-specific products.

5. Legal validity of this disclaimer 

This disclaimer is to be regarded as part of the Internet publication which you were referred from. If sections or individual terms of this statement are not legal or correct, the content or validity of the other parts remain unaffected by this fact.