Owner of this website

WTM Engineers GmbH
Johannisbollwerk 6-8
20459 Hamburg, Germany

Phone: +49.40 35009-0
Fax: +49.40 35009-100


The various WTM offices also use the internet domains '', '', '', '' for e-mail traffic.

Company domicile: Hamburg, Registration Court: Hamburg Local Court, Commercial Register: Amtsgericht Hamburg, HRB 95764

Partners / Manging Directors: Dr. Ulrich Jäppelt, Dr. Stefan Ehmann, Dr. Alexander Steffens, Dr. Hans Scholz, Dr. Thomas Schadow, Dr. Gerhard Zehetmaier

VAT identification number in accordance with section 27 a of the German Value Added Tax Act (UstG): DE 245 587 176

Responsible for the contents in accordance with section 55, para 2 of the German State Broadcasting Contract (RStV): Dr. Ulrich Jäppelt

Professional Regulations

Professional description: Consulting Civil and Structural Engineers (Beratende Ingenieure im Bauwesen)

Responsible Chamber/authority/supervisory authority:
Hamburgische Ingenieurkammer - Bau (HIKB) / Hamburg Chamber of Civil and Structural  Engineers
Körperschaft des öffentlichen Rechts / Public law body

Grindelhof 40
20146 Hamburg, Germany

Phone: +49.40 413 45 46-0
Fax: +49.40 413 45 46-1

The managing directors listed below are members of the Hamburg Chamber of Civil and Structural Engineers (Hamburgische Ingenieurkammer - Bau). They are listed as Consulting Engineers (Beratende Ingenieure) and as Chartered Engineers (Bauvorlageberechitigte Ingenieure).

Dr. Ulrich Jäppelt: Member No. 250
Dr. Stefan Ehmann: Member No. 298
Dr. Alexander Steffens: Member No. 417
Dr. Thomas Schadow: Member No. 619
Dr. Gerhard Zehetmaier: Member No. 620

Professional regulations, such as in particular the Hamburg decree governing engineering and the Code of Ethics of the Hamburg Chamber of Civil and Structural Engineers are available at Gesetze und Verordnungen.


While we make every effort to check all information with the greatest of care, errors on this site cannot be ruled out. As such we cannot guarantee the accuracy of any of the information. The creator and operator of this site can assume neither legal responsibility nor liability of any nature for incorrect information, its consequences, or damage of any nature, which can be attributed to use of the material described. At the time they were posted, all links were checked for illegal and criminal contents. Given that these inks are constantly changing we can assume no responsibility for external contents. In the event of infringements of the law / errors becoming known to us or drawn to our attention we will rectify these immediately.

We are always grateful for any information about errors or problems with or on this website.


The contents and works compiled by the website operators on this website are subject to German copyright. The reproduction, editing, distribution and use in all forms beyond the scope of the copyright require the written approval of the relevant author or creator. Downloads and copies of this website are only permitted for private, non-commercial use. Inasmuch as the contents of this website were not compiled by the operator, the copyright of third parties applies. Contents by third parties in particular are designated as such. Should a copyright infringement nonetheless come to your attention, we kindly request that you inform us accordingly. In the event of infringements of the law becoming known to us we will remove such contents immediately.