In 1961, Theodor Fink founded a small civil engineering business in Waldshut-Tiengen. His son Max took over and continued the work. When Uwe Klefenz joined as Managing Director and Partner, a new chapter began – and when he took full ownership, "Fink & Klefenz" became today's Klefenz GmbH. Over six decades, it has grown into a company with over 200 employees, own locations in southern Germany, its own gravel pit and its own recycling facility. What has remained is the family leadership – and the understanding that in civil engineering, a managing director's word counts for more than any contract.
1999. Max Fink leaves the company as managing director & co-partner.
1994. Uwe Klefenz joins the company as managing director & co-partner.
2001. Change of company name
2014 & 2017.
2012. Eröffnung des Standorts in Zwickau & Erweiterung in Gurtweil.
Start with the mining of gravel in our gravel pit in Rheinheim. There was also an enlargement of our building yard.
2021. Extension in Germersheim for the “DB Digitale Schiene” project
2022. Founding of Klefenz Rail-Service GmbH.
Mit der Gründung der KRS GmbH Klefenz Rail-Services als eigenständige Schwestergesellschaft bündeln wir unsere Expertise im Bereich gleisgebundener Baumaschinen. Heute ECM-zertifiziert nach DVO (EU) 2019/779.
2017. Founding of the “Backbone-Landkreis Waldshut” construction project
2026. Extension of our office in Gurtweil.
2025. Neuer Standort in Asperg
Out of many stages, something more than just a growing business has emerged. Over the years, a self-understanding has developed that still carries us today: working with both feet on the ground, taking on responsibility and never losing sight of our own standards. What brought us here also shapes how we think and act today – clear in our principles, open in our development and driven to make what already works even better.






Whether you are planning a demanding construction project or looking for a new career path – Klefenz stands for experience, reliable collaboration and a clear commitment to quality. If you want to realise a project with us or become part of our team, we look forward to starting the conversation and taking the next step together.
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