ISO takes very seriously any complaint related to the misuse of the ISO logo or false certification to ISO management system standards.

If you wish to report an organization claiming to be certified to an ISO management system standard, please email with full details of the issue and how we can contact you.

A response to your complaint will be sent to you within 14 days.

ISO cannot guarantee a resolution or assume any liability, but it can help to facilitate dialogue between the parties involved and work towards a positive outcome.

Use of ISO logo

ISO Logo

ISO does not perform certification, therefore it does not permit anyone to use the ISO logo in connection with certification, or for any other use unless authorised. If you suspect the ISO logo is being misused, we want to hear from you.


By submitting a complaint to ISO, you hereby authorize us to share any parts of the information it contains.

If you wish your complaint to remain confidential, please state this clearly in your submission.