Company information

who Ingenieurgesellschaft mbH
Schwertfegerstr. 27
23556 Lübeck

Dipl.-Ing. (FH) Timo Hackbarth
Dipl.-Inf. (FH) Marcus Redeker

Phone: +49 (0) 451 31781–000
Fax: +49 (0) 451 31781-399

Register Court: Local Court of Lübeck HRB 3738
Tax Id. No.: DE 172610935

Copyright and rights of use

The copyright for all contents of belongs to who Ingenieurgesellschaft mbH, Lübeck. All texts, images, logotypes and the design of the who Ingenieurgesellschaft mbH website are protected under copyright law and other protective legislation. The content of this website may not be copied, distributed, modified, or made available to third parties for any commercial purposes. Reproduction of any kind is not permitted without our expressed and written consent. Please note that our website contains some pictures that are copyrighted by third parties.

If you are interested in using content from our internet presence for purposes outside of our internet presence, please contact us.

Our products

We reserve the right to undertake technical and procedural modifications to our products for the purposes of improvement or the accommodation of modified legal requirements. Current data are available upon request.

All offers are subject to change and non-binding. The who Ingenieurgesellschaft mbH expressly reserve the right to modify, to supplement or to delete parts of the pages or the entire offer or to end the publication for period of time or forever without separate announcement.


This website has been compiled with the utmost care. However, we cannot assume any liability for the correctness and accuracy of the information contained therein. No liability is accepted for damage or consequential damage to hardware and software that arises either directly or indirectly from the use of this website and the data that is made available, insofar as there is no demonstrable, intentional or negligent fault on the part of the who Ingenieurgesellschaft mbH.

Privacy protection

All information provided by you, e.g. by email, will be treated with the utmost confidentiality and will be passed on under no circumstance to unauthorised third parties. Your data is stored electronically in our company so that we can keep you informed of new developments at who. When you contact us you may be asked to provide personal information. Providing this information is entirely voluntary.

Your personal data will be saved and processed in accordance with the provisions made by German data protection law.

Applicable law and jurisdiction

The legal information provided is subject to German law and will be interpreted in accordance with German law. German courts have exclusive jurisdiction regarding the decisions of any legal actions or proceedings and/or the settlement of any disputes resulting from or in connection with the legal information provided. For this purpose each of the parties irrevocably submits to the jurisdiction of the German courts. Court of jurisdiction is Lübeck, Germany. Final provision: Modifications to this agreement must be in writing and must be signed by an authorised representative of the who Ingenieurgesellschaft mbH. Insofar as individual components or individual formulations of these conditions do not, no longer, or not completely comply with the applicable legal requirements, all other requirements or formulations remain in their content and validity unaffected thereby.

By using the information provided here you accept the above stated conditions as legally binding.

Download of files

The downloading of files is at your own risk. We exclude all liability for damages either directly or indirectly arising from the download or use of these files.

Links to external sites

We have carefully selected internet pages that are external to the who Ingenieurgesellschaft mbH to provide you thereby with interesting information, e.g. regarding our cooperation partners. Since these internet pages are operated by third parties the who Ingenieurgesellschaft mbH accepts no liability for their contents

who Ingenieurgesellschaft mbH
State: January 2024