EN 
NL 
DE The cost of certification does not just 'fall out of the sky'. The calculation of the number of audit days and thus the certification costs are bound by formal rules.
The basis of the calculation is always the number of FTEs within your organisation. Here, for ISO27001 and NEN7510 certification, the table from ISO27006 is used. The number of days in the table are the so-called 'gross days'. Depending on the context of your organisation, days can be added or subtracted. For example; if you do not develop software yourself, this is a relieving factor in the calculation and can already save half a day.
| Number of FTEs | Audit days |
| 1-10 | 5 |
| 11-15 | 6 |
| 16-25 | 7 |
| 26-45 | 8,5 |
| 46-65 | 10 |
| 66-85 | 11 |
| 86-125 | 12 |
| 126-175 | 13 |
| etc.. |
Suppose your organisation has 14 FTEs. This means gross 6 audit days. Through our intake form, you can provide information about your context. What do you do and what does your organisation not do. We discuss this form together so that we have a good understanding of what you have filled in. We then use this information to make the calculation. This calculation gives the number of net audit days. With the data provided from the intake form, the 6 gross days may come out to 5 audit days for initial certification. We multiply this by our daily rate.