Who does major Linux independent work?

Someone came to a Stammtisch about four months ago claiming to gross
over $150k a year in personal income overhauling underlicenced M$
enterprises to Linux based enterprises. Specifically, he built website
and servers for fifty churches, I forget which denomination. At the
time, he was giving away some equipment, some routers I think.

Where are ya guy?

Failing that, who else does this?

--Alexander