Nice restaurants with meeting space for 5 to 50

Just as the title suggests:

enclosed / private meeting space
good service and food
wireless internet
U/S bahn access
for monthly meetings and doesn't charge an arm and a leg
meeting goers will buy food and drink

Thanks for any help and suggestions.

Stragula can easily groups to about 20. It can do 50, but you'd have people at tables back-to-back.

Call me if you want.

woof.

I have yet to visit, despite Dory's emails, but I have heard wonderful things about the Twisted Bavarian.

It's in the basement of a former hotel, which has a bit of history, I understand.