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.