Maybe this list may help you a little bit:
TÜV Rheinland LGA Products GmbH ; https://www.tuv.com/world/en/eu-medical-device-regulation-mdr-2017-745.html
DEKRA Certification GmbH ; https://www.dekra-certification.de/medical-devices-manufacturers/regulation-on-medical-devices.html
IMQ ISTITUTO ITALIANO DEL MARCHIO DI QUALITÀ S.P.A. ; https://www.imq.it/en/eu-directives/regulation-medical-devices-mdr
TÜV SÜD Product Service GmbH Zertifizierstellen; https://www.tuvsud.com/en/industries/healthcare-and-medical-devices/medical-devices-and-ivd/medical-device-market-approval-and-certification/medical-device-regulation
BSI Assurance UK Ltd; https://www.bsigroup.com/en-GB/medical-devices/our-services/ce-marking/
