Trusted Information Security Assessment Exchange

TISAX (Trusted Information Security Assessment Exchange) enables mutual acceptance of Information Security Assessments in the automotive industry and provides a common assessment and exchange mechanism. Assessment results always remain under control of the assessed companies.


TISAX participants can embody two roles: providing and/or accessing assessment information. Active participants are assessed and provide the respective assessment result to other participants via TISAX Exchange. Passive participants can request assessment results of other participants through TISAX Exchange and access those results via the platform when the request has been confirmed. Every participant can assume both roles at the same time according to its needs. TISAX does not differentiate between these roles.

These are the four steps to successfully use TISAX:

  1. Registration
  2. Selection of an audit provider
  3. Undergoing the assessment
  4. Exchange of the assessment results with existing and potential partners

For further questions regarding TISAX, please feel free to read up the FAQs or download the TISAX Participant Handbook:

TISAX Participant Handbook


Online Registration

Registration is a prerequisite to participate in TISAX.

As a registered Participant, your company can

  • commission assessments and have them carried out by accredited audit providers 
  • share results with other Participants from assessments performed 
  • access results shared with your company by other Participants. 

To register your company as a TISAX participant, please use the online registration on the ENX Portal.


If you have any questions regarding registration or TISAX, please feel free to read up our FAQs or chapter 4 from the TISAX Participant Handbook. We are also pleased to be at your disposal on the phone under +49 69 986692 777 and by email under


Your company is already registered in TISAX, please use the Sign In on the ENX Portal.





TISAX enables that audit providers offer mutually accepted assessments based on the VDA ISA catalogue in competition. This means that every participant can select an audit provider and expect standardized assessment results which are accepted by other participants throughout the industry. This is enabled by an assessment system featuring distinct scopes of services which is equally suitable for all enterprises along the entire value-creation chain of the automotive industry. Clearly defined packages allow for economical assessments aligned to the individual protection needs.

Participants will receive the most recent list of audit providers and corresponding contact data after successful registration.


The following TISAX audit providers performing assessments all over the world:

  • Ernst & Young GmbH Wirtschaftsprüfungsgesellschaft 
  • KPMG AG Wirtschaftsprüfungsgesellschaft
  • operational services GmbH & Co. KG 
  • PwC Certification Services GmbH
  • TÜV Rheinland i-sec GmbH

The following audit providers are in completion of the TISAX process and do already conduct TISAX assessments:

  • Bureau Veritas Certification
  • DEKRA Certification GmbH
  • DQS BIT GmbH
  • Deloitte Certification Services GmbH
  • TÜV SÜD Management Service GmbH



TISAX assessments and admission of audit providers are based on a framework of Criteria and Requirements (ENX TISAX ACAR).

These criteria consist of two parts:

  • Part A: General requirements on audit providers
  • Part B: Specific requirements for ENX TISAX Audit Providers

Get in touch with us if you want your enterprise to become a TISAX audit provider. We gladly inform you about the requirements and the process flow in detail.




The exchange of assessment results within TISAX is merely exclusive for registered participants and only takes place after explicit release of the results by the assessed company for an inquiring company in form of standardized summaries (TISAX Report). The scope of the information provided is based on the requirements of the requesting participant.



The VDA Information Security Committee of the VDA (German Association of the Automotive Industry) was established more than 10 years ago, and has ever since developed a catalogue of assessment criteria on information security based on key aspects of the international ISO/IEC 27001 and 27002 standards: VDA ISA (VDA Information Security Assessment).

This instrument is used by VDA member companies both for internal purposes and for assessments at suppliers and service providers processing sensitive information of their respective partners.

Assessments according to VDA ISA, particularly at service providers and suppliers, are being handled individually by each requiring company so far. Therefore, it is possible that a partner is assessed several times at short intervals.


The VDA Information Security Committee establishes a common assessment and exchange mechanism (TISAX = Trusted Information Security Assessment Exchange) in the automotive industry and beyond, to avoid such multiple effort in the future.

The TISAX system is operated by ENX Association which has been entrusted with the implementation as a neutral instance by the VDA.

TISAX creates competition among the accredited audit providers and allows for common acceptance of assessment results within the circle of TISAX Participants. The audit providers perform the assessments based on this set of information security management controls


The ENX Association acts as a governance organisation of TISAX. It monitors the audit providers and the quality of implementation and assessment results.

This control function is ensured through the “ENX Triangle of Governance”, a contractual framework which consists both of a contract between ENX Association and each TISAX audit provider and between ENX Association and each participant. The participant agrees to the General Terms and Conditions of TISAX participation through its registration.

This ensures the results will finally correspond to a required quality and objectivity as well as the rights and obligations of the participants are being preserved.

Double and multiple assessments of the same sites, locations or scopes will therefore be a thing of the past. This helps each participant to save time and costs.


ENX Association
Bockenheimer Landstraße 97-99
60325 Frankfurt am Main
Telefon +49 69 9866 927-77


Sitz der Geschäftsführung

ENX Association
Bockenheimer Landstraße 97-99
60325 Frankfurt am Main

Telefon +49 69 9866 927-0

Umsatzsteuer-Ident-Nummer: DE813277682

Eingetragener Vereinssitz

ENX Association
20 rue Barthélémy Danjou
92100 Boulogne-Billancourt

ENX ist eine französische Association nach dem Gesetz von 1901, eingetragen bei der Sous-Préfecture Boulogne-Billancourt, Frankreich unter der Nummer W923004198 mit alleiniger Betriebsstätte in Frankfurt am Main, Deutschland.


Philippe Ludet, Renault (Präsident)
Nadine Buisson-Chavot, GALIA (Schatzmeister)

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