+31 (0)10 - 455 7844


Because it is part of our business.

ISO 9001 Certified

GMM is a ISO9001:2015 certified company. Here you find our ISO Certificate (English).


GMM is proud to be autorized by LLoyds for remarking materials. Here you find a copy of our certificate: LLoyds Certification.

Testing and documents

GMM can deliver you the quality you need including all necessary test documents and certificates. We have the possibility to upgrade 3.1 certificates to 3.1+ or 3.1C (3.2) certificates. Besides that we have the ability to carry out almost any additional test on the material that you might require. . GMM has been awarded re-marking acceptance by LR’s for materials with 3.1 and even 3.2 certification.