Legal Notice

Information according to § 5 DDG

Mandat Managementberatung GmbH
Emil-Figge-Strasse 80
44227 Dortmund

Management Board

Prof. Dr. Guido Quelle (Chairman), Fabian Vollberg, Linda Vollberg


Telephone: +49 231 9742-390
Fax: +49 231 9742-389

Registry entry

Commercial registry entry
Registration number: HR B 8803
Court of registration: Amtsgericht Dortmund


Sales tax identification number according to §27 a Umsatzsteuergesetz
DE 12 47 27 551

Information on professional liability insurance

Legal domicile of the company: Dortmund
Professional liability insurance (Gerling): up to €500,000 per damage claim (financial loss), max. 2 x year
Company liability insurance (Nationale Suisse): €5,000,000 per damage claim (personal injury, property damage, financial losses), the total indemnity paid by the insurer for all insured events in an insurance year is twice the sum insured
Area of validity of the insurance: Germany
Out-of-court mediation body: Honorary Board of the BDU e.V.
Professional standards of the BDU e.V.: Download

References for the images and graphics used on the website

Pictures homepage: © Olga Pasławska, © mark wragg (
© Brian Jackson, © Petair, © pressmaster, © mpfphotography, © Sergey Nivens, © jarous, © Sergey Galushko, © Andres Rodriguez, © Frank Axelsen
Picture icon CEO Tip: © yoki5270
Picture icon Mandat Start the Week with Growth: © mezzotint_fotolia
Image Mandat Growth Indicator: © jojje11

Growth Starts at the Top – Fuel for Entrepreneurial Growth Engines by Prof. Dr. Guido Quelle; courtesy of the publisher

Liability for Content

The content of our website has been created with the greatest care. However, we cannot guarantee that the contents are correct, complete and up-to-date. As a service provider, we are responsible for our own content on these pages in accordance with art. 7 para.1 DDG and general laws. According to articles 8 to 10 DDG, we are not obliged to monitor transmitted or stored third-party information or to investigate circumstances that indicate illegal activity. Obligations to remove or block the use of information in accordance with the applicable laws remain unaffected. However, liability in this respect is only possible from the time of knowledge of a concrete violation of law. If we become aware of any such legal violations, we will remove this content immediately.

Liability for Links

Our website contains links to external websites of third parties, the contents of which we have no influence on. Therefore we cannot assume any liability for this external content. The respective provider or operator of the linked pages is always responsible for the corresponding content. The linked pages were checked for possible legal violations of at the time of linking. Illegal content was not detected at the time of linking. However, continuous monitoring of the content of the linked pages is not reasonable without concrete evidence of a violation of the law. If we become aware of any legal violations, we will remove the respective links immediately.


The content and works on these pages created or used by the site operators are subject to German copyright law. The reproduction, editing, distribution and any other form of use outside the limits of copyright law require the consent of the respective author or creator. Downloads and copies of these pages are only permitted for private, non-commercial use. Insofar as the content on this site was not created by the operator, the copyrights of third parties are observed. Third party content is specifically identified as such. Should you nevertheless become aware of a copyright infringement, please inform us accordingly. If we become aware of any infringements, we will remove the corresponding content immediately.