Accreditation At its location in Riedlingen – Zell, Germany, Qmess GmbH received confirmation of its capabilities in the field of tactile 3D measurement technology from German Accreditationinstitute GmbH: Registration number: D-PL-17311-01-00. Accreditation according to DIN EN ISO/IEC 17025 Thus, the German Accreditationinstitute GmbH confirms the special competence of Qmess GmbH with regard to test methods.