Looking for a private area in a bar/pub (Brussels)

Hi all,

As I’m leaving the twenties, I’m looking to hire a private area in a bar/pub in Brussels, to celebrate this important date. I was contacting several pubs but still didn’t find a proper place.

The “only” requirements should be closing time three/four am at least, space for 65 people, and located in Brussels center or European district.

I will truly appreciate any suggestion.