Made in Germany


You need half tubes, coiled half tubes or U-tubes? No matter which tube system is required - with Theis Tube Technologies from Siegen you rely on highest performance and safety. A great number of certificates and approvals confirm our work and quality and our unlimited vertical range of manufacturing. We are certified by Lloyd's Register Quality Assurance DIN EN ISO 9001:2015, and an accredited manufacturer according to TÜV Nord Systems GmbH & Co.KG AD 2000 Data Sheet HP0 / W0, as well as DIN EN ISO 3834-2 and Quality Assurance System for material manufacturers according to the rule 2014/68/EU for pressure equipment.

Committed. Flexible. Target-oriented.


Our team of Theis Tube Technologies in Siegen meet customers and partners in every project with greatest expertise and highest commitment: From a reliable delivery performance via solutions made to customer’s specifications through to technical advice and support, and we always provide more than 100% and more than you expect from us. This is the credo which has helped us to be a successful, medium-sized, owner-managed manufacturing company in the bending industry since 1926. We do everything to meet your requirements - well-considered and strategically sound, which also is a fixed element in our company philosophy. Respect for our staff members’ performance. Their know-how and commitment enable us to ensure the consistently high quality of Theis-tube-systems as well as our well established product portfolio.