How much does 2advanced make

I know this sounds greedy or stupid but I was just wondering, as a soon-to-be freelancer (hopefully), i see that making websites wont make you THAT much money. You basically do it for the art and to do what you love. But I know 2advanced rents an office building from TechSpace (one of their clients) and I was looking at their rates and I can’t see how 2advanced can be making enough money with all of their staff. I mean I know they are the industry leader but how much do these guys charge?