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 TÜV Süd Management Service GmbH DIN EN ISO 9001:2015, and an accredited manufacturer according to TÜV Nord Systems GmbH & Co.KG AD 2000-Merkblatt 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.