"If I were to ask you what the world's most largest open source firm was, how would you answer? Red Hat, perhaps, because they're the first pure play to get within hailing distance of a billion in revenue? MySQL, because they were valued at a billion? IBM? Sun?
"The obvious definitional challenges of the question aside, I would personally pick none of the above. Far and away the biggest open source business that I've seen is Google, which went from $0 to a $181B with a B market cap in 10 years..."
