NGC have an office in Munich, I can take the Ubahn and drop them off if I have something to send, they do the rest of the work. they did do on-site grading here 4 times a year but stopped until the pandemic eases. They generally ship now every Monday and it will take around 7 weeks for them to come back. I did use PCGS and shipped those to Paris at the time they also did on-site, now both have stopped for the time being, but its obviously easier for me to use NGC if I was to slab something