Seems like (almost) every single German university is part of the DFN and has their own CA. I worked for a hospital for a while that was also part of it. You'd

Seems like (almost) every single German university is part of the DFN and has their own CA. I worked for a hospital for a while that was also part of it. You'd think it would be a nice idea to get rid of bureaucracy and make it easier to obtain certificates but no, our boss had to appear in person at one of the offices. (Yes the hospital has several physical offices for its own CA).