CEO and Division Managers
Mettenmeier’s Management
Ludger Schulte
Strategic Management
With the acquisition of the shares in Mettenmeier GmbH by ITS Informationstechnik Service GmbH on 17 October 2023, Dipl.-Ing. Ludger Schulte joined Mettenmeier GmbH as strategic managing director.
Knut Biermann
Head of Sales/Shared Services
Knut Biermann, originally employed in the Surveying division at Mettenmeier GmbH, has been working in sales since 2011 and is now part of the operational management team and head of Sales/Shared Services.
Tel.: +49 5251 150-526
E-Mail: knut.biermann@mettenmeier.de
Bernd Hesse
Head of Software
Bernd Hesse has been with Mettenmeier GmbH since 2018 as Head of Asset Management, Workflow and Portals. He has been part of the operational management team since 2025 and is responsible for the software division together with Frank Mügge.
Tel.: +49 5251 150-386
E-Mail: bernd.hesse@mettenmeier.de
Frank Mügge
Head of Software
Frank Mügge as been with Mettenmeier GmbH since 1997 as Head of Support, IT Services and Hosting & Operations. He has been part of the operational management team since 2025 and is responsible for the software division together with Bernd Hesse.
Tel.: +49 5251 150-387
E-Mail: frank.muegge@mettenmeier.de
Manja Harnisch
Head of Network Data Services
Manja Harnisch has been with Mettenmeier GmbH since 2008, working as a consultant, project manager and team leader, among other roles. She has been part of the operational management team since 2025 and is responsible for the network data services division.
Tel.: +49 5251 150-457
E-Mail: manja.harnisch@mettenmeier.de
Sebastian Schulte
Head of Shared Services
Sebastian Schulte (MSc/MiM) has been with the ITS Group since 2024, initially in a specialist consulting role. Since 2025, he has been responsible for the ITS Group's shared services across the company and, in this role, is part of the operational management team.
E-Mail: sebastian.schulte@mettenmeier.deExtended group of management
The business divisions are represented by the following contacts in the extended group of management:
Education: Andrea Weritz und Philipp Tetzlaff
E-Mail: bildung@mettenmeier.de, Tel.: +49 5251 150-550
Rugged Hardware/Mobile Solutions: Sebastian Retthofer
E-Mail: sebastian.retthofer@mettenmeier.de, Tel.: +49 5251 150-597
Authorised representatives
Christoph Dörr
Head of the St. Wendel office
Christoph Dörr has been employed by the Mettenmeier Group since 2010 and became head of the St. Wendel office in 2019 with a focus on the Lovion, AM Suite and OPTIMUS software products.
Tel.: +49 6851 99804-30
E-Mail: christoph.doerr@mettenmeier.de
Günter Ruberg
Head of Commercial Department
Günter Ruberg has been with Mettenmeier GmbH since 1989 and, in addition to his role as senior advisor, he is also Managing Director of Mettenmeier Mobile Solutions GmbH.
Tel.: +49 5251 150-340
E-Mail: guenter.ruberg@mettenmeier.de
