A couple of famous ones are www.hjc.nl (although when I just googled them it seems that they are under bankruptcy since a few months, I'm not sure what's going on there) and www.quaedvlieg-juristen.nl . Generally companies like this say it becomes interesting at profits of 50k and up. Of course it depends, I mean if a founder needs to pay himself a salary that's going to be taxed locally (at least in part). It's very casuistic, but I don't agree that it only pays for huge companies; as soon as a company has a few employees and does business globally (quite easy for software), it becomes worthwhile to at least look into it.
