The Theodor Cordes Group is a German manufacturer of extruded elastomer profiles and vulcanized joint splicing systems. Their product line covers the full range of pipeline, shaft, and tunnel construction. With 2 manufacturing facilities, one in Boizenburg and one in Westphalia, they produce and deliver over 1 million seals per year, over 100 different profiles, to 100 key customers. Cordes has inhouse testing facilities that provide the capability to conduct the full range of tests required by STUVA.

During the last 15 years, CORDES has become a leading force in the production, testing and supply of tunnel segment gaskets. They have supplied tunnel segment gaskets to important tunneling projects such as:

HPP Mtkvari Tunnel Project, Akhaltsikhe, Georgia (2016/2017)

• IDRIS MTS-01 & 03 Sewer and Drainage System , Doha, Qatar (2016)
• Metro Moscow Sewero-Wostoschneu – ⌀ 10.5 m, Russia (2016-2018)
• Metro Almaty Extension Line, Kazakhstan (2016/2017)
• Birmingham Resilience Scheme, UK (2017)
• Albvorlandtunnel NBS Wendlingen – ⌀ 10.5 m Ulm, Germany (2017-2019)
• Metro Moscow Yellow Line Extension (2017/2018)
• Metro Tashkent, Uzbekistan (2017/2018)
• Metro Moscow Extension, Mosinjproekt-Evrascon JV (2018)
• Metro Frankfurt, Line U5 “Europaviertel”, Germany (running project)
• Metro Moscow Second Ring Project – CRCC, Russia, ⌀ 6,0 m (2018)
• Metro Copenhagen Sydhavnen Line, Denmak – ⌀ 5.5 m (2019-2021)
• Metro Kiev, Ukraine – ⌀ 6.1 m (running project)
• Brisbane Cross River Rail, Australia – ⌀ 6.910 mm (running project)
• London Power Cable Tunnel “LPT-2”, UK – ⌀ 3.600 mm (running project)
• KDB Cable Tunnel Berlin, Germany ⌀ 3.600 mm (running project)