Building is a matter of trust

We are a medium-sized construction and real estate company that has maintained a high quality in all areas of civil engineering and throughout the life cycle of real estate, for 50 years. Our main contracts are turnkey building, structural engineering services, metal and facade construction and real estate management. We create synergy in collaboration with other partner companies and subsidiaries like the RSB Rheiner Stahlbau GmbH. Our clients are both from the public sector as well as private contractors.

More than 600 competent employees are committed to your success. We devote ourselves to your projects from eight locations throughout the country and three foreign branches. More than half of our staff are directly and commercially involved in the production on site.

Company management

Der Vorstand der MBN GmbH

from left: Jens Böhm, Dipl.-Kfm. (Speaker) Torben Stumpe, BSc MSc, Rolf Römer, Dipl.-Ing.


Executive directors

Jens Böhm, Dipl.-Kfm. (Speaker)
Torben Stumpe, BSc MSc
Rolf Römer, Dipl.-Ing.

facts and figures

Share Capital

 3.2 million €

Total turnover

2015  –  226 million €

2016  –  185 million €

2017  –  220 million €

2018  –  294 million €

2019  –  352 million €

2020  –  430 million €

  2021  –  463 million €*






Production facilities Georgsmarienhütte

company property

45000 m²

with Production Workshops

6000 m²

incl. Office space

5300 m²

Credit rating

we belong to the top 0,5 % of companies, who hold a extraordinary high credit rating, which is certified through Creditreform

You may wish to inform yourself about us on the Webpages of the Elektronischen Bundesanzeigers.