ISO 27001 vs. TISAX: Which Standard Suits Your Company?

In an increasingly interconnected and digitalized world, protecting sensitive information is becoming more essential than ever. Many companies must implement information security measures due to regulatory, contractual, or customer requirements.

Two major standards play a key role in this context: ISO 27001 and TISAX®. Both aim to establish strong information security management systems (ISMS) – but they differ significantly in purpose, scope, and industry focus.

ISO 27001 is international and cross-industry, while TISAX® is specifically designed for the automotive sector.

This guide helps you understand the differences and decide which standard suits your organization.

What is ISO 27001?

ISO 27001 is an internationally recognized standard for information security management systems (ISMS). It defines requirements for:

• establishing
• implementing
• monitoring
• continuously improving

a systematic information security framework.

Core principles

• Risk-based approach: identify risks, evaluate them, implement targeted controls
• Technical & organizational measures
• Continuous improvement (PDCA cycle)

ISO 27001 is suitable for any industry and any company size. Certification is issued by accredited bodies and recognized worldwide.

Benefits

• Higher trust with customers & partners
• Stronger internal security structures
• Competitive advantage—especially for international business

What is TISAX®?

TISAX® (Trusted Information Security Assessment Exchange) is an automotive industry-specific assessment and exchange mechanism. It is based on the VDA ISA catalogue and operated by the ENX Association, it is tailored to organizations that work with automotive OEMs or suppliers.

Key characteristics

• Based on ISO 27001, but extends it with industry-specific requirements
• Focus on prototype protection, GDPR compliance, supplier processes, physical security
• No certificate, but TISAX® assessment results shared via the ENX portal
• Required by many OEMs

TISAX® is essential for companies handling development data, prototypes, or confidential partner information.

Key Differences Between ISO 27001 and TISAX®

1. Scope & applicability

• ISO 27001 → global, cross-industry, all company sizes
• TISAX® → exclusive focus on the automotive sector

2. Certification method

• ISO 27001: formal certification by an accredited body
• TISAX®: assessment by authorized audit providers, results published in ENX portal

3. Requirements

TISAX® includes additional automotive-specific requirements, such as:

• Prototype & model protection
• Stricter physical security
• GDPR-specific controls
• Supplier-related requirements

4. Assessment approach

• ISO 27001: no maturity levels, continuous improvement
• TISAX®: graded assessment (Level 1–3) depending on sensitivity of information

Which Standard Is Right for Your Company?

Choose ISO 27001 if your company:

• operates across industries
• is international or wants global recognition
• needs a structured, risk-based ISMS
• wants to strengthen customer and regulatory trust

ISO 27001 is ideal for IT, healthcare, finance, manufacturing, retail, and more.

Choose TISAX® if your company:

• works with automotive OEMs or Tier-1 suppliers
• handles development data, prototypes, or confidential automotive information
• must comply with VDA requirements
• wants to support or expand partnerships in the automotive sector

TISAX® is often required by customers for automotive collaboration.

Combined approach

Many organizations implement both:

• ISO 27001 as a universal ISMS framework
• TISAX® as an add-on for automotive requirements

Conclusion

Both ISO 27001 and TISAX® help companies build structured, verifiable information security processes – but with different goals.

• ISO 27001 is flexible, globally recognized, and industry-agnostic.
• TISAX® is targeted, automotive-specific, and often a requirement for OEM collaboration.

The right choice depends on your industry, customers, and strategic goals. For many companies, combining both standards delivers the strongest results.

FAQ

What is the difference between ISO 27001 and TISAX®?

ISO 27001 is an international, cross-industry ISMS standard. TISAX® is an automotive-specific assessment based on VDA ISA with additional requirements like prototype protection.

Who is ISO 27001 suitable for?

For any organization seeking a structured, certifiable ISMS—nationally or internationally.

When is TISAX® mandatory?

When working with automotive OEMs or suppliers. Many OEMs require a valid TISAX® assessment.

Can a company implement both ISO 27001 and TISAX®?

Yes. ISO 27001 as the general ISMS framework, TISAX® as the automotive extension.

How does certification differ?

ISO 27001 ends with a formal certificate. TISAX® provides an assessment result published in the ENX portal for authorized partner access.

TISAX® is a registered trademark of the ENX Association. fuentis has no business affiliation with the ENX Association and is not an audit provider approved by ENX. The fuentis Suite supports preparation for TISAX® assessments.