Dr.-Ing. Stefan Nehlsen


Luebeck HRB 88


DE 135082713

Tax ID

22 290 03520


This website is maintained by


Mankenberg GmbH

Spenglerstr. 99

23556 Luebeck / Germany



Mankenberg GmbH

Postfach 3230

23581 Luebeck / Germany











+49 (0) 451 879 75 0

+49 (0) 451 879 75 99


This entire website is protected by copyright. The downloading or printing out of individual pages and/or sections of the website is only permitted, if it is covered by the purpose provided. Copyright markings may not be removed or changed. Reproduction, forwarding or editing is not allowed outside the narrow limits of copyright law without the prior written agreement of the author.
Mankenberg has taken every care to ensure that the information provided on this site is reliable and accurate. Mankenberg will not be held responsible for losses or damage of any kind which directly or indirectly are connected with the access, the use, the performance or the enquiry on this website or with its links to other websites.

Clicking on links may lead you to websites outside Mankenberg. Mankenberg has neither checked the links or their contents nor does it assume any liability with respect to technological quality or their contents, including products or services offered or in any other respect.


Privacy policy

We appreciate your interest in our website and your interest in our company and products. The protection of your privacy in the processing of your personal data is an important concern to which we pay special attention during our business processes. Personal data collected during visits to our websites is processed by us confidentially and according to the legal provisions.


We use what is known as cookies on our site, for example in order to follow the preferences of our visitors and to create the optimum design for our web site. This facilitates navigation and improves the user friendliness of the web site. Cookies are small files stored on the hard disk of the visitor. They allow information to be obtained for a certain period of time and to identify the computer of the visitor. You can configure your browser in order to be able to expressly accept and/or reject the storage of a cookie. You can also restrict the lifetime of a cookie till the closing of your browser.


Collection and processing of data

When you access our website, our webserver automatically stores the IP address which was assigned to you by your internet service provider, the address of the website that linked to us (referrer URL), the pages you accessed on our website as well as the date and duration of your visit. Additional personal data is only stored if volunteered by you.


Use and disclosure of personal data

At various places in our website we provide you the opportunity to contact us or make use of certain services (for ex. enquiries). Any personal data collected for this reason will solely be used by us for the purpose for which it has been furnished to us. Your personal data will not be disclosed to non-authorized third parties.

This website uses Google Analytics, a web analytics service provided by Google, Inc. (“Google”)

Google Analytics uses “cookies”, which are text files placed on your computer, to help the website analyze how users use the site. The information generated by the cookie about your use of the website (including your IP address) will be transmitted to and stored by Google on servers in the United States. In case of activation of the IP anonymization, Google will truncate/anonymize the last octet of the IP address for Member States of the European Union as well as for other parties to the Agreement on the European Economic Area. Only in exceptional cases, the full IP address is sent to and shortened by Google servers in the USA. On behalf of the website provider Google will use this information for the purpose of evaluating your use of the website, compiling reports on website activity for website operators and providing other services relating to website activity and internet usage to the website provider. Google will not associate your IP address with any other data held by Google. You may refuse the use of cookies by selecting the appropriate settings on your browser. However, please note that if you do this, you may not be able to use the full functionality of this website.

Furthermore you can prevent Google’s collection and use of data (cookies and IP address) by downloading and installing the browser plug-in available under

You can refuse the use of Google Analytics by clicking on the following link. An opt-out cookie will be set on the computer, which prevents the future collection of your data when visiting this website:


Disable Google Analytics

Further information concerning the terms and conditions of use and data privacy can be found at or at

Please note that on this website, Google Analytics code is supplemented by “anonymizeIp” to ensure an anonymized collection of IP addresses
(so called IP-masking).


Lead generation tools

In addition, we use the services of so-called lead generation tools. Lead generation is a term used in marketing. A lead is a qualified prospective customer who is interested in a company or a product on the one hand and who on the other hand leaves his address and similar contact data (lead = data record) to the advertiser on his own initiative for further contact and therefore is highly likely to become a customer. Generating high-quality leads is a fundamental task for winning new customers. Address data of potential interested parties can be generated online as well as offline for specific target groups and these are also our legitimate interests in data processing according to Art. 6 para. 1 let. f GDPR. We use the service “Leadfeeder”. It uses Google Analytics data to identify company visitors. Leadfeeder is integrated in our CRM System & Email Marketing Tool. Leadfeeder is a service of Liidio Oy, Mikonkatu 17 C, Helsinki 00100, Finland. Leadfeeder's privacy policy can be found at



We have taken technical and organisational security measures in order to protect the data we have under our control against manipulation, loss, destruction, access by unauthorised persons or against unauthorised disclosure. All the employees of our company are trained with respect to the general data protection regulation DS-GVO as well as DSAnpUG-EU and have been committed to data secrecy. Our in-house EDP is continuously adapted to the necessary technical security measures, current conditions and the resulting requirements.


Freedom of information

You can ask us for information we may hold about you by writing to the above address.

For any question relating to data protection, please contact our data protection officer


Dr. Gerald Esins

Zum Vogelsang 9

23968 Barnekow



+49 (0)3841 28 14 42

All rights reserved, all indications without engagement, subject to modifications.

No liability is assumed for the correctness or completeness of the calculated design data.