Recently, the audit took place at Diagram for the recertification of our ISO 9001:2015 quality management system. We are proud to announce that our ISO certificate has been extended until September 22, 2021.

Diagram is constantly working to safeguard the quality of its services and, where possible, to improve. This has been awarded the ISO 9001:2015 recertification.

Diagram is audited annually by an external company. This means a lasting guarantee for our customers for the quality of service and the security of its information.