Supplier Solutions Portal

Why use OS?

Take advantage of our expertise!

Our company has a long tradition of supporting automotive companies, giving us extensive experience in this field. Part of OS arose from a former information technology provider gedas, which provided consultancy services to companies in the automotive and manufacturing industries for more than 20 years, advising on the development, system integration, and operation of ICT solutions.

Over many years, the OS auditor team has carried out numerous audits and assessments across the globe on behalf of the Volkswagen Group, focusing on the following areas:

  • Examination of the questionnaires and documents made available in advance
  • Verification of the information provided, evaluation of the premises, interviews, analysis of weak points
  • Creation of reports and definition of measures
  • Monitoring of measure implementation

When doing so, the team used standardized assessment procedures, guidelines, and documents, some of which were developed in-house. These ensured that the results were comparable and easier to understand.

As such, we know what we are talking about and are extremely familiar with the companies and their problems.

OS meets the stringent requirements of the TISAX® assessments with our certified and experienced auditors. They apply their comprehensive expertise when evaluating automotive service providers from a wide range of areas, and carry out complex assessments in a variety of forms.

OS also continues to exclusively carry out VW-specific audits, such as Secure i.Do areas or the protection of immobilizer-relevant components. These can be combined with the TISAX® assessment if required.

The ISi service team stands ready to assist you if you have any questions about the assessment. Personal contact is important to us, as it means we can find the best solution for your upcoming assessment together.


TISAX® is a registered trademark of the ENX Association.