TISAX Compliance for Automotive Suppliers: A Complete Guide

The automotive industry’s digital transformation has made information security a critical business function. To address this, TISAX (Trusted Information Security Assessment Exchange) has become the sector’s specialized security framework, ensuring standardized protection across global supply chains.

Developed by the German Automotive Association (VDA), TISAX is tailored to the unique security challenges of OEMs, suppliers, and service providers handling sensitive automotive data. Unlike general frameworks such as ISO 27001, TISAX includes industry-specific controls focused on prototype protection, production specifications, and connected vehicle technologies.

This guide explores TISAX assessment levels (ranging from self-assessments to rigorous on-site audits), certification requirements, and implementation strategies. We also examine how TISAX compliance enhances data security while creating measurable business advantages, such as stronger OEM partnerships and regulatory alignment.

What is TISAX Certification?

TISAX (Trusted Information Security Assessment Exchange) is a security standard developed by the German automotive association VDA (Verband der Automobilindustrie) to ensure consistent information security across the automotive supply chain.

Unlike general security frameworks like ISO 27001, TISAX is specifically designed for automotive suppliers, manufacturers, and service providers. It helps ensure that companies handling confidential data, prototypes, or production-related information meet uniform security standards accepted by leading carmakers like BMW, Volkswagen, and Mercedes-Benz.

Importance of TISAX Compliance

TISAX (Trusted Information Security Assessment Exchange) is a specialized security framework designed to protect sensitive automotive data and establish a uniform security standard across the global supply chain. Developed by the German Association of the Automotive Industry (VDA) and managed by the ENX Association, TISAX ensures that companies handling confidential automotive information—whether it’s prototype designs, production details, or customer data—meet strict security requirements.

1. Protecting Confidential Automotive Data

Automotive manufacturers, suppliers, and service providers work with highly sensitive information, including vehicle prototypes, technical specifications, and production plans. A data breach or unauthorized access to this information can lead to intellectual property theft, financial losses, and reputational damage. TISAX enforces industry-specific security controls to protect this data from cyber threats, industrial espionage, and internal vulnerabilities.

2. Standardizing Security Requirements

Before TISAX, each automotive company had its own security requirements, leading to inconsistencies and inefficiencies across the industry. TISAX creates a harmonized security framework, ensuring that OEMs, suppliers, and third-party vendors follow a common security standard. This alignment reduces confusion, streamlines compliance, and strengthens overall cybersecurity resilience.

3. Reducing Audit Overload

In the past, suppliers had to undergo multiple security audits for different OEMs, each with its own assessment criteria. This created duplicated efforts, increased costs, and administrative burdens. TISAX simplifies this process by enabling mutual recognition of security assessments—meaning a single TISAX certification can satisfy multiple manufacturers. This efficiency reduces audit fatigue and speeds up supplier onboarding.

4. Enhancing Trust & Transparency in the Supply Chain

In a globally connected industry, manufacturers and suppliers must be able to trust each other’s security measures. TISAX certification signals a company’s commitment to information security best practices, helping build stronger business relationships and competitive advantages. Organizations with TISAX compliance are often seen as more reliable partners, improving their chances of securing contracts with major OEMs.

5. Aligning with Regulatory & Industry Expectations

With increasing data protection laws (such as GDPR) and growing concerns about cybersecurity in connected vehicles, regulatory compliance is a major focus for the automotive industry. TISAX ensures that companies meet legal and contractual security obligations, reducing the risk of fines, legal action, or contract loss due to non-compliance.

Why TISAX Compliance Is a Strategic Investment

Achieving TISAX compliance is not just about meeting industry requirements—it’s a long-term investment in securing business continuity, reducing security risks, and gaining a competitive edge. In an era where cyber threats, data breaches, and supply chain vulnerabilities are growing concerns, TISAX-compliant companies position themselves as trusted and secure partners in the automotive ecosystem.

TISAX vs. ISO 27001: How Are They Different?

Many companies ask: “TISAX vs. ISO 27001 – which one is right for us?” While both frameworks focus on information security, they serve different purposes.

• ISO 27001 is a global standard for information security management across all industries.
• TISAX is automotive-specific, incorporating ISO 27001 principles while adding requirements tailored for car manufacturers, suppliers, and service providers.
• ISO 27001 requires independent certification audits, whereas TISAX follows a shared assessment system, allowing certified companies to share their results with multiple business partners instead of undergoing multiple audits.

Feature	TISAX	ISO 27001
Scope	Automotive industry-specific	Applies to all industries
Focus Areas	Protecting vehicle prototypes, production data, supply chain security	General information security across all sectors
Certification Type	Shared assessment system (results can be shared)	Independent certification (each company gets its own audit)
Governing Body	German Association of the Automotive Industry (VDA), managed by ENX	International Organization for Standardization (ISO)
Mandatory for OEMs & Suppliers?	Often required by automotive manufacturers like BMW, VW, Mercedes	Voluntary but widely adopted for security best practices
Audit Process	Assessment levels (self-assessment to on-site audit)	Formal independent audits by accredited certifying bodies
Compliance Framework	Based on ISO 27001 but with additional automotive security controls	Broad framework for risk management, security policies, and controls

Who Needs TISAX Certification?

TISAX compliance is essential for companies handling sensitive automotive data. It ensures data security, trust, and compliance with industry standards, making it a requirement for many businesses in the automotive supply chain.

1. OEMs (Original Equipment Manufacturers)

Automakers like BMW, Volkswagen, and Mercedes-Benz mandate TISAX for suppliers handling vehicle designs, ADAS, and proprietary technology.

2. Tier 1 & Tier 2 Suppliers

Suppliers dealing with critical vehicle systems, components, or software must comply to ensure secure data exchange with OEMs.

3. Engineering & R&D Firms

Companies working on prototypes, vehicle testing, and advanced automotive technologies must protect intellectual property and sensitive data.

4. IT & Data Processing Providers

Businesses managing cloud services, vehicle data, cybersecurity, or AI-driven automotive software need TISAX to ensure secure data handling.

5. Consulting Firms Handling Automotive Data

Firms providing market research, legal, or cybersecurity consulting must comply if they access OEMs’ confidential business data.

Which One Do You Need?

• If your company operates in the automotive supply chain, TISAX is likely required by OEMs or Tier 1 suppliers.
• If you need a general security framework for any industry, ISO 27001 is more suitable.
• For maximum security and competitive advantage, some companies pursue both.

Elements of TISAX Compliance: Key Security Priorities

TISAX isn’t just about meeting a security standard—it’s about ensuring trust, protecting sensitive automotive data, and keeping operations resilient. Whether handling vehicle prototypes, customer data, or supplier information, companies must have clear security controls in place to meet compliance and industry expectations.

1. Securing Automotive Prototypes & R&D Data

For companies involved in vehicle development, testing, and manufacturing, protecting proprietary designs and prototypes is a top priority. TISAX sets clear expectations for how this data should be handled:

• Limit Access to Prototypes – Only those with explicit authorization should handle or view confidential designs and parts.
• Ensure Secure Storage & Transport – Prototypes and sensitive materials must be stored in restricted areas and transported under tight security controls to prevent leaks or theft.
• Control Testing & Public Exposure – Road tests and presentations must follow strict confidentiality protocols, such as using camouflaging techniques or conducting trials in restricted zones.
• Regulate Photography & Public Displays – Whether showcasing a prototype at a trade show or featuring it in marketing content, companies must ensure that sensitive details don’t fall into the wrong hands.

2. Strengthening Cybersecurity & Access Control

With vehicles becoming more connected and data-driven, the risk of cyber threats has never been higher. TISAX emphasizes tight digital security to prevent unauthorized access and cyberattacks:

• Access Based on Role & Need – Employees should only have access to data relevant to their role, reducing unnecessary exposure to confidential information.
• Continuous Threat Monitoring – Companies must implement firewalls, endpoint protection, and real-time threat detection to catch malware, phishing, and hacking attempts before they cause harm.
• Incident Response & Quick Recovery – Security breaches must be identified, contained, and resolved swiftly to minimize operational disruption and data loss.
• Ensuring Supplier & Vendor Security – Third-party partners must meet the same security standards before they’re given access to OEM or supplier data.

3. Handling Personal Data with Privacy & Compliance in Mind

TISAX compliance aligns closely with GDPR and other global privacy laws, ensuring that companies handle personal data responsibly. Businesses that store or process customer and employee information must:

• Classify & Secure Sensitive Data – Whether handling customer records, biometrics, or employee details, appropriate security controls must be in place.
• Encrypt & Mask Personal Information – Data should be encrypted both in storage and during transmission to prevent unauthorized access.
• Respect User Privacy & Data Rights – Individuals must have control over their personal data, including the right to access, modify, or request deletion.
• Conduct Routine Privacy Audits – Regular compliance checks help ensure companies stay ahead of evolving privacy laws and avoid legal risks.

4. Physical Security & Operational Resilience

Digital security is only part of the equation—TISAX also requires companies to secure their physical infrastructure and prepare for disruptions. Key measures include:

• Controlled Access to Facilities – Offices, R&D centers, and storage sites should have restricted entry, monitored access logs, and surveillance systems in place.
• Backup & Disaster Recovery Plans – Critical data must be backed up regularly, and companies should have tested recovery procedures for unexpected disruptions.
• Preparedness for Emergencies – Whether it’s a cyberattack, power outage, or fire, organizations must have clear contingency plans to ensure business continuity.

In an industry where security lapses can mean lost contracts or reputational damage, TISAX compliance isn’t just important—it’s essential

TISAX Certification & Assessment: How It Works

Achieving TISAX certification ensures that a company meets industry-specific security requirements for handling sensitive automotive data. The process is structured, requiring organizations to assess, audit, and improve their security measures before obtaining certification.

1. Conduct a Self-Assessment (VDA ISA Questionnaire)

The first step is completing a self-assessment using the VDA ISA (Information Security Assessment) questionnaire. This evaluates existing security controls across areas like data protection, prototype security, and third-party risk management. Companies use this to identify gaps before moving to the audit phase.

2. Select a TISAX-Approved Audit Provider

Organizations must choose an accredited audit provider from the ENX Association’s list. The audit provider reviews the company’s self-assessment results and verifies compliance with TISAX requirements.

3. Undergo a Security Audit (TISAX Assessment Levels)

Depending on the sensitivity of the data handled, companies undergo one of three assessment levels:

• Level 1 – Self-assessment (for low-risk environments).
• Level 2 – External audit (remote review, mainly for suppliers with moderate security needs).
• Level 3 – On-site audit (mandatory for companies handling highly confidential data like vehicle prototypes).

4. Implement Corrective Actions (If Required)

If the audit reveals non-compliance, the company must address security gaps and implement corrective measures. The audit provider may request reassessments to confirm compliance.

5. Obtain TISAX Certification (Valid for Three Years)

Once all security requirements are met, the company receives TISAX certification, which remains valid for three years. Certification details are stored in the TISAX platform, allowing OEMs and business partners to verify compliance without needing separate audits.

The Role of VDA in TISAX (Verband der Automobilindustrie)

The German Association of the Automotive Industry (VDA) developed the VDA ISA framework, which serves as the foundation of TISAX requirements. This framework outlines:

• Security controls for handling confidential automotive data.
• Risk management measures to prevent data breaches.
• Compliance benchmarks for companies working with OEMs and suppliers.

By aligning with ISO 27001 while integrating automotive-specific requirements, VDA ISA ensures that TISAX remains a focused and effective security standard for the industry.

 TISAX Assessment Levels: Which One Do You Need?

TISAX offers three assessment levels, each designed to match the sensitivity of the data a company handles. Choosing the right level ensures that information security measures align with industry expectations, helping businesses maintain compliance and build trust with OEMs and suppliers.

TISAX Level 1: Basic Security Measures

• Who Needs It? Companies handling low-risk data that don’t require strict security measures.
• Assessment Process: Self-assessment only, with no external audit.
• Use Case: Suitable for organizations that do not process confidential automotive data but still need to demonstrate basic security compliance.

TISAX Level 2: Moderate Security & External Audit

• Who Needs It? Companies handling sensitive business information that requires a higher level of protection.
• Assessment Process: Self-assessment plus an external audit, usually conducted remotely by a TISAX-approved auditor.
• Use Case: Businesses dealing with intellectual property, confidential engineering data, or non-public technical specifications.

TISAX Level 3: High-Security Requirements for Sensitive Data

• Who Needs It? Companies working with highly confidential information, such as vehicle prototypes, classified R&D projects, or customer data.
• Assessment Process: Requires a full on-site audit by an accredited audit provider.
• Use Case: Often mandatory for Tier 1 suppliers and partners of major OEMs, especially those dealing with prototype security, production specifications, or automotive cybersecurity.

How to Choose the Right TISAX Level?

• Minimal data exposure? Level 1 is enough.
• Handling confidential data like internal reports or supplier contracts? Level 2 is required.
• Working with prototypes, production secrets, or personal data? You need Level 3.

Most major OEMs require Level 3 certification for suppliers to ensure the highest level of data security. Choosing the right assessment level not only meets compliance needs but also strengthens business opportunities in the automotive industry.

The TISAX Certification Process: A Step-by-Step Guide

Achieving TISAX certification involves a structured approach to ensure your organization meets the stringent information security requirements of the automotive industry. Here’s a concise roadmap to guide you through the process:

1. Self-Assessment & Readiness Check

Begin by evaluating your current information security posture:

• Utilize the VDA ISA Questionnaire: This tool helps identify existing security measures and areas needing improvement.
• Identify Gaps: Assess your policies, procedures, and controls against TISAX standards to pinpoint deficiencies.

2. Select a TISAX-Approved Audit Provider

Choosing the right auditor is crucial:

• Accredited Providers: Refer to the ENX Association’s list of authorized audit providers to ensure credibility.
• Engagement: Establish clear communication regarding audit scope, objectives, and timelines.

3. Complete the TISAX Audit

The audit process comprises:

• Documentation Review: Auditors examine your ISMS documentation to verify compliance.
• On-Site Assessment: For higher assessment levels, auditors conduct site visits to observe and evaluate the implementation of security controls.

4. Implement Corrective Actions if Necessary

Post-audit, address any identified issues:

• Action Plan: Develop strategies to rectify non-conformities highlighted during the audit.
• Timely Resolution: Ensure prompt implementation of corrective measures to maintain the certification timeline.

5. Receive TISAX Certification

Upon successful completion:

• Certification Issuance: Your organization is awarded TISAX certification, valid for three years.
• Result Sharing: Utilize the ENX portal to share your certification status with business partners, enhancing trust and credibility.

How to Prepare for a TISAX Audit

Preparation is key to a successful TISAX audit. Consider the following steps:

1. Conduct a Pre-Audit Gap Analysis

Internal Review: Assess your ISMS against TISAX requirements to identify and address potential weaknesses.

2. Review TISAX Controls

Focus on critical areas such as:

1. Information Security Management System (ISMS): Ensure a robust framework governing information security.
2. Risk Management: Implement processes to identify, assess, and mitigate risks.
3. Physical Security: Safeguard facilities and hardware against unauthorized access and environmental hazards.

3. Train Employees on TISAX Compliance Best Practices

Awareness Programs: Educate staff about TISAX standards and their roles in maintaining compliance.

Regular Updates: Keep employees informed about changes in policies and emerging security threats.

4. Prepare for Common Audit Findings

Documentation Accuracy: Maintain up-to-date and precise records of all security policies and procedures.

Process Consistency: Ensure that security practices are uniformly applied across the organization.

Evidence Readiness: Be prepared to provide proof of compliance, such as logs, reports, and audit trails.

By diligently following these steps, your organization can navigate the TISAX certification process effectively, demonstrating a strong commitment to information security within the automotive industry.

TISAX Certification Costs & Timelines

The cost of TISAX certification depends on factors like company size and the required audit complexity.

• Audit Provider Fees: External audit costs typically range from €5,000 to €10,000, depending on the scope and depth of the assessment.
• Registration Fee: Companies must pay a mandatory registration fee of around €500 per site to the ENX Association.
• Operational Expenses: Businesses also incur additional costs while preparing for the audit, such as gap analyses, internal assessments, documentation updates, and ISMS (Information Security Management System) implementation or upgrades. These costs can vary widely—smaller companies may spend around €10,000, while larger organizations might face expenses ranging from €50,000 to €200,000.

Overall, the total cost depends on how mature your security systems are and how much work is needed to meet TISAX requirements.

Expected Timeline

• Fast-Track (3-4 months) – If the company already follows strong security practices and has minimal corrective actions.
• Standard Process (6-9 months) – Common for companies undergoing their first TISAX certification, requiring documentation improvements and security upgrades.
• Longer Timelines (9+ months) – If major security gaps exist or internal processes need significant restructuring before certification.

Planning ahead and conducting a pre-assessment can help reduce costs and shorten the timeline.

Simplify Compliance with VComply

Handling security and regulatory requirements can be tough, but VComply offers a solution to simplify and streamline your compliance processes. 

• Automate Compliance Tasks

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• Centralized Documentation

Maintain organized, accessible records with VComply’s centralized document storage. This feature simplifies evidence management, enhances security, and ensures you’re always prepared for audits.

• Integrated Risk Management

VComply offers an integrated risk assessment and management approach, allowing you to identify vulnerabilities and promptly implement corrective actions. By automating risk assessment and reporting, you can save time and focus on critical compliance tasks.

• Streamlined Audit Preparation

Prepare for audits with confidence using VComply’s comprehensive tools. The platform enables you to conduct site, process, and regulatory audits with integrated corrective action plans and automated evidence collection, reducing errors and improving overall compliance management.

• Customizable Frameworks

Align your compliance efforts with industry standards using VComply’s extensive library of compliance frameworks, including ISO 27001, ISO 9001, NIST, and SOX. Customize these frameworks to meet your organization’s unique regulatory requirements, ensuring efficient and effective compliance management.

With VComply, transform compliance from a burdensome task into a streamlined, manageable part of your business operations.Get a free demo today and see how VComply can simplify your compliance process!

Final Thoughts

TISAX compliance isn’t just a requirement for companies handling sensitive automotive data—it’s essential for securing OEM partnerships and maintaining business continuity. Meeting TISAX standards strengthens data security, trust, and regulatory alignment, giving your company a competitive edge in the automotive industry.

A structured assessment, audit preparation, and risk management approach makes certification more efficient. Investing in TISAX compliance today means stronger security, fewer audit redundancies, and long-term business credibility.

Ready to simplify compliance? Start your 21-day free trial with VComply and streamline your TISAX certification process today!