Our Expertise
The strengths of LEONHARD WEISS
As a family-owned company in its fourth generation, with over 125 years of pioneering spirit and craftsmanship, LEONHARD WEISS is your partner for a sustainable and high-performance infrastructure. With our broad range of services, we do more than just build – we shape living spaces and create connections – for our clients, our employees, and for society.
Upcoming events at a glance
Trade fairs, events and highlights
Building Information Modeling
Building in new dimensions

Building Information Modeling
LEONHARD WEISS is deeply engaged with BIM and its numerous applications. In recent years, we have tested, implemented, and further developed this method in many areas. The planning, construction, and management of buildings are optimised through this digital approach, creating added value for our clients.
Our Success Stories
A selection of successful construction projects

The extension of the urban railway to Martinsried
A mega project connects the science locations in Munich

Production of building shell at Rebstockbad Frankfurt
A new recreation paradise is being built at the metropolis

Broad band upgrade at the municipality Inzigkofen
Efficient and resource-friendly laying of fibre optic cable

Sealing of skylights at the main station Stuttgart
Precision for good “eyesight“

Upgrade of the Digitaler Knoten (digital junction) for Stuttgart 21
For a maximum capacity of the railway network

Modernisation of the overhead line Metternich – Erbach
Aloft for a stable power supply
Our Subsidiaries
Subsidiaries complete the LEONHARD WEISS portfolio
In addition to LEONHARD WEISS Bauunternehmung, we operate with eight wholly owned subsidiaries in the German market. Here, our core construction business is complemented by a wide range of services, such as the installation of specialist flooring, the supply of bespoke steel solutions, and the restoration and preservation of historic buildings.

AMG Asphaltmischwerk Göppingen
Natural materials are the foundation of every structure – production of rolled asphalt and acceptance of asphalt milling material and reclaimed asphalt.

LEONHARD WEISS Eisenbahnverkehrsunternehmen GmbH
Transport of goods and vehicles by rail throughout Germany.

LEONHARD WEISS Fußbodentechnik
Installation of LW Pharma Terrazzo, industrial heavy duty flooring, design flooring for museums and utility flooring for kitchens.

invatec
Cable ducts made of plastic, edge path constructions, signal foundations and special solutions made of steel.

Do you also want to take responsibility for the future?
We’re not shaping the future at some distant point – we’re doing it today. Every day, every project gives you the opportunity to actively help shape the world of tomorrow.
Are you ready to be part of something big?
We are looking for people with courage, drive, and the determination to leave their mark. With us, you’ll have the chance to take on responsibility and work on exciting projects using the latest technology.





Traditional company since 1900





























