As of 1 September 2025, Peter Mandl ZT GmbH has joined the international network of the ARX-Group. Your trusted partner remains the same – now under a new name, with an expanded network and the reliable service you’ve come to expect.

Since 2002 the office has been recognized as a specialist in structural engineering and analysis. A particular focus is on working with existing buildings – renovating, restoring and extending both historic and modern structures. This range of services is complemented by research and teaching activities in structural theory and analysis, as well as in-depth expert reports.

To ensure the highest levels of quality and innovation, we work intensively with a broad spectrum of building materials – from concrete, steel, wood and glass to membranes and polymers. Always open to new research findings and developments, we continuously expand our expertise. Close collaboration with clients and architects from the earliest design stages is key to achieving sustainable, high-quality results.

Through our integration into the House of Engineers (HDI) Graz, we’ve been able to offer tailor-made turnkey solutions – including construction management – over the past years. Since 2017, we have also been Allplan- and BIM-certified and we consistently apply these standards across all our projects.

Our success is founded on a balanced combination of technical expertise, innovative thinking, international experience and a dedicated, young, creative team.

As part of ARX Österreich GmbH, headquartered in Innsbruck, we benefit from strong regional roots. The company’s main office is in Innsbruck, with an additional branch in Vienna. The Graz location forms a vital link between Vienna and Innsbruck, reinforcing our presence in Austria and bringing us even closer to our clients.

In this way, what has proven itself remains intact – and grows with the new opportunities offered by a strong group.