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Our quality management meets the highest standards

We manufacture high-precision products to meet our customers’ requirements.

Our quality management is an essential part of our daily work. At Bilstein & Siekermann® we do not just pay lip service to quality: We see quality assurance as a great opportunity to set ourselves apart from the competition and lead the international field in the long term. The increasing complexity of production techniques and the mounting demands of our customers, e.g. for component cleanliness, make our quality management an important pillar in all areas of the company.

As a customer-focussed company, we know the wishes of our partners and the importance of punctuality and delivery accuracy, as well as precise compliance with technical specifications. As a competent, efficient and reliable partner, we always strive to meet the demands of our customers in the best possible way. This is why we have established a quality management system certified to IATF 16949. In order to check length, form, and positional tolerances for drawing compliance, we have a well-equipped measuring room with 3D measuring machines, contour encoders, form testers, hardness testers and projectors. Several measuring stations with the product-specific measuring equipment are also available in the production area, so that the quality and precision of our products can also be immediately checked at the production facilities.

For example, in our modern laboratory for monitoring residual dirt on the surface of the components, we can test to the stringent standards of the VDA 19 directive. In addition, we are certified to OHSAS 18001 for compliance with necessary safety regulations, which also contribute to smooth production processes. An environmental and energy management policy certified to DIN EN ISO 14001 and 50001 respectively complements our efforts in terms of sustainability and climate protection. We have also set ambitious goals for the future: For instance, we intend to focus even more closely on utilising innovative technologies, so that we can offer our customers decisive advantages with our expertise.


René Jaax
René Jaax

Quality Assurance (QA)

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Bilstein & Siekermann GmbH + Co. KG
Industriestraße 1
D-54576 Hillesheim

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In light of the current situation, we will be happy to discuss your topics in a video conference. To arrange an appointment, please contact us and tell us what you would like to discuss at info(at) You will receive a link to the meeting by email.

We have won awards

Awards are a mark of quality. See for yourself!

  • German Brand Award 2019
  • Innovator des Jahres 2018
  • TOP 100 2017
  • Großer Preis der Mittelstandes
  • Beste Arbeitgeber Marke 2019
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