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NIS2Compass bietet Informationen und Orientierungshilfen zur NIS2-Compliance. Die Inhalte stellen keine Rechtsberatung im Sinne des Rechtsdienstleistungsgesetzes (RDG) dar und ersetzen keine individuelle rechtliche oder fachliche Beratung.

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Verify NIS2 Proof

Verify the NIS2 implementation status of a company that uses NIS2Compass.

Around 29,000 companies in Germany that are directly subject to NIS2 ask their suppliers for IT security evidence. Even if you are not directly affected, the requirement reaches you through the supply chain.

Source: Bitkom estimate of NIS2 applicability in Germany.

Verify proof

You receive the code directly from the company you are verifying.

Checking a code is free · Creating a code is Pro (€29/month)

Why a structured proof matters

Understand the questionnaire

What your customers must ask for under Section 30 BSIG, and how to classify these requirements correctly.

Respond in a structured way

145 NIS2 requirements, ready-made templates and the Knowledge Hub form the basis of your answer.

Document verifiably

Your customer can look up your documented implementation status at any time using the verification code.

How verification works

  1. 1

    Use NIS2Compass

    Check off requirements, fill in templates, build up expertise.

  2. 2

    Get your code

    Find your verification code in the proof section of the platform.

  3. 3

    Share with the customer

    Share the code by email or embed it as a badge on your website.

  4. 4

    The customer checks

    The customer enters the code on this page and sees the current implementation status.

What is a NIS2 supplier proof?

A NIS2 supplier proof is a structured self-declaration of how far a company has implemented the requirements of the NIS2 Directive. Many directly affected companies must assess the IT security of their suppliers and therefore request proof. With NIS2Compass you document this status along 145 concrete requirements and share it via a verification code.

How does verification work?

The verifying company receives a short verification code from the supplier. On this page the code is entered and, after a security check, the current implementation status is shown: the organization name and the number of completed NIS2 requirements. The values are recalculated on every request, so they are always up to date.

When do I need a NIS2 proof from suppliers?

If your company qualifies as an essential or important entity under NIS2, you must assess the security of your supply chain under Section 30 BSIG. Proof from your suppliers helps you meet this obligation verifiably, without auditing every supplier individually.

Further reading

  • Knowledge Hub: Supplier security under NIS2
  • NIS2 Guide: Chapter 6 – Supply chain security
  • Template: Supplier security questionnaire

Frequently asked questions

Do I have to register with the BSI as a supplier?
Registration with the BSI is only mandatory if your company itself qualifies as an essential or important entity under NIS2. As a pure supplier without direct applicability, you do not have to register, but you often receive security requests from your affected customers.
How do I respond to a NIS2 questionnaire?
Work through the questionnaire along the Section 30 BSIG requirements and back up your measures with documents. NIS2Compass structures these requirements into 145 traceable steps and provides matching templates, so you can answer in a structured and fast way.
What does NIS2 preparation cost as a supplier?
Checking someone else's proof code on this page is free. If you want to document and share a proof yourself, use the NIS2Compass Pro plan for €29 per month, cancellable monthly.
When should I prepare as a supplier?
The German NIS2 implementation act has been in force since December 2025, and the obligations apply immediately. Affected companies are already actively reviewing their supply chains. Being able to present a structured proof early gives you an advantage in tendering and onboarding.
How deep is the NIS2 proof from NIS2Compass?
The proof is based on 145 concrete requirements with defined outcomes, not on a short self-assessment quiz. This makes the documented implementation status considerably more meaningful and easier for your customers to follow.
Is the proof a conformity certificate?
No. The proof documents only the self-declared implementation status in NIS2Compass. It is not an independent audit and not a statement about actual NIS2 conformity. For legal validity, an independent audit by a qualified provider is required.

NIS2Compass is a guide for structured NIS2 implementation and does not replace legal advice. The supplier proof documents a self-declaration and is not a conformity certificate.