De or het mbo-instelling?

The correct Dutch article is:

de mbo-instelling

Rule Words ending in -ing: almost always de. See the rule

How to use mbo-instelling

the mbo-instellingde mbo-instelling
this mbo-instellingdeze mbo-instelling
that mbo-instellingdie mbo-instelling
our mbo-instellingonze mbo-instelling
your mbo-instellingjouw mbo-instelling
every mbo-instellingelke mbo-instelling
which mbo-instelling?welke mbo-instelling?
a big mbo-instelling / the big mbo-instellingeen grote mbo-instelling, de grote mbo-instelling