De or het controle-instantie?

The correct Dutch article is:

de controle-instantie

Rule Words ending in -tie and -sie: almost always de. See the rule

How to use controle-instantie

the controle-instantiede controle-instantie
this controle-instantiedeze controle-instantie
that controle-instantiedie controle-instantie
our controle-instantieonze controle-instantie
your controle-instantiejouw controle-instantie
every controle-instantieelke controle-instantie
which controle-instantie?welke controle-instantie?
a big controle-instantie / the big controle-instantieeen grote controle-instantie, de grote controle-instantie