Our NPS
Net Promoter Score
At C1 Certification, customer and employee satisfaction is our top priority. We use Net Promoter Score (NPS) to measure how satisfied our customers are with our services. One simple question reveals it all:
How likely are you to recommend C1 Certification to someone in your network based on our latest audit?
The customer's responses, on a scale of 1 to 10, along with their justification, provide us with valuable insights into their experience of our audits, expertise and methodology. The result is calculated by subtracting the percentage of negative responses from the percentage of positive responses, generating an overall rating between -100 and 100. An NPS value above 50 is considered exceptionally high.
To ensure we get genuine feedback, someone in the management team personally calls all customers three weeks after each completed audit. No surveys, just real conversations with real people. This leads to high responsiveness, rapid improvement and great engagement.
Current nps: 93.6
2025: 93.5 - 2024: 93 NPS - 2023: 93 NPS - 2022: 91 NPS - 2021: 89 NPS
Customer Quotes
"Only now do we understand what the intentions of the standard are, and that gives us a completely new perspective and renewed energy".
"C1 Certification is very easy to get in contact with and provides quick feedback from everyone involved".
“Their business support system is very user friendly and the maturity model makes everything easier and more explicit”.
"The auditor was perceptive, pleasant, easy-going, professional and had a clear focus on our business".
"Working on the basis of the management principles used by C1 Certification has become a very value-creating tool for us. When our operations are assessed based on these principles, it becomes clear which areas we can develop further, and the structured mapping gives us a concrete basis for continued improvement work.
We also find that the co-operation with C1 Certification's competent auditors works extremely well. Through open discussions and constructive dialogue, we get a valuable exchange. It's always easy to call or email - we get quick and thoughtful answers every time. We really feel that they are there for us.
Unlike our previous certification bodies, where it sometimes felt like the focus was on putting us in our place, we find that everyone at C1 Certification works with a genuine customer focus. That makes a huge difference."
- Marie Reby, Jens S. Group
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