Modern & Innovative
The most satisfied customers
Competent auditors

What services do we offer?

We offer accredited certification of management systems and certify against:

  • ISO9001:2015 – Quality management
  • ISO14001:2015 – Environmental management
  • ISO45001:2018 – Work environment
  • ISO27001:2022 – Information security


In addition, we perform verifications against standards, customer- or supplier-specific requirements or e.g. ISO 26000, for social responsibility and guidelines for carbon dioxide emissions.

Who are we?

C1 Certification is the best certification body in the Nordic region. Our four keywords, fast, simple, friendly and flexible, clearly show how we act. Our unique maturity model paired with us auditing according to the 7 management principles, delivered by competent auditors, give our customers new heights, value and knowledge. In addition, we have developed our business system based on the different needs of our two main stakeholders, the customers and the auditors.

Customer satisfaction

We are proud to have the highest customer satisfaction in the Nordics! To ensure this, we follow up each completed audit with a call to our customers. Customer feedback confirms that we not only live up to but often exceed expectations.

Thanks to our dedicated employees, careful follow-ups, and unwavering focus on continuous improvement, we ensure that every customer receives the highest quality service and experience.