WINTERGERST
EN
Skip navigation
  • Company
    • Team
    • International Network
  • Competencies
    • Corporate Finance/M&A
    • Transformation/Restructuring
  • Projects
    • Project
  • News
    • Article
  • Career
  • Contact

24. June 2026

WINTERGERST assists with the sale of the DUROtherm Group to swissplast AG in Switzerland

With the entry of swissplast AG, the DUROtherm Group wins a strong strategic shareholder. The acquisition significantly strengthens the presence of swissplast in Central Europe. In the course of a competitive bidding process, swissplast AG managed to prevail over other strategic bidders and financial investors. The interdisciplinary deal team at WINTERGERST Societät für Unternehmer-Beratung assisted the investor search.

The DUROtherm Group, based in Haiterbach, Baden-Württemberg, which maintains other facilities in Lindlar, Krupka (Czech Republic) and Sennwald (Switzerland) counts among the largest providers of thermoforming in Europe. DUROtherm is specialized in the development and production of sophisticated thermoformed plastic parts.

The company had fallen into difficulty due to the challenges facing the plastics industry in terms of both costs and demand, exacerbated by the complex integration of a recently acquired production plant. As a result, the central task of WINTERGERST was to set up a competitive investor search process under great time pressure.

A key success factor was the close networking of financial and operational expertise. This allowed the team to develop a well-founded turnaround concept that illustrated the restructuring options available and potential for success. Despite the challenging market environment, a competitive bidding process was created that allowed the transaction to be brought to a successful conclusion.

swissplast AG, a strategic investor that is at home in the thermoforming industry, managed to prevail over the other bidders in an intensive competitive bidding process. The business combination will create a leading European-wide thermoforming specialist with a fully integrated suite of services from design through to series production and close customer proximity.

„DUROtherm is a traditional company with great technical capabilities, a motivated workforce and a long-standing customer base. It was clear to us at the outset that the deal was more than about production capacity but also responsibility for people, customers and an entire industrial sector.”

Barac Bieri and Ninyan Bieri
Both shareholders of swissplast AG

“A key success factor was the interdisciplinary cooperation between our internal team members. The transaction underscores the expertise of WINTERGERST at managing complex investor processes and assisting mid-cap companies with their strategic transactions,” says Christian Scharfenberger, the partner at WINTERGERST Societät für Unternehmer-Beratung in charge of the project, together with Dennis Minder, Florian König and Olivier Teichmeister.

Download

Veit Mathauer
Media contact

+49 (0) 711 947 670
wintergerst@sympra.de

Volker Wintergerst
Contact for readers

Volker Wintergerst has more than 20 years of experience in the consulting sector. After five years as the audit manager of audits of both separate and consolidated financial statements of large middle-market groups of companies and as a project leader in corporate finance, he spent ten years as a managing partner of the consulting arm of the Ebner Stolz Group.

+49 (0) 711 699 855-22
volker.wintergerst@wintergerst.com
WINTERGERST
  • Deutsch
  • English
Skip navigation
  • Company
  • Team
  • International Network
Skip navigation
  • Competencies
  • Corporate Finance/M&A
  • Transformation/Restructuring
  • Projects
  • DUROtherm Gruppe
  • KWM Kunststoff Formteile GmbH
  • Mayer & Cie. GmbH & Co. KG
  • EUCO Rail AG
  • Allgäu Fresh Foods GmbH & Co. KG
  • Asutec GmbH
  • Rücker GmbH
  • Wehrle-Gruppe
  • SOLO Gruppe
  • TTS Tooltechnik Systems
  • Salzgitter Maschinenbau AG
  • WECK-Gruppe
  • Lorch Schweißtechnik GmbH
  • Ziegler + Schenk GmbH & Co. KG
  • TIMETOACT GROUP GmbH
  • OPTIMA automation GmbH
  • Chemoform AG
  • Westiform Germany GmbH
  • JACOB Elektronik GmbH
  • MBO-Gruppe
Skip navigation
  • News
Skip navigation
  • Career
Skip navigation
  • Contact
  • Privacy Policy
  • Legal Notice
  • Kununu
  • LinkedIn