Any attempt to use revenues as justification of the valuation is missing the point, also comments regarding git hosting being a commodity misses it. The valuation imho is a bet that GitHub will be ingrained in developer's workflow and continue to occupy developer mindshare for at least the next decade. Some reasons have already been mentioned in the comments here: * Revenues - It's already the dominant player in git…
> value as a latent hiring marketplace StackOverflow has been trying to monetize this aspect of its user base for a few years now [0], but has not made much headway as far as I can tell. [0] http://careers.stackoverflow.com/
>The sites are still growing like crazy.
>The company itself has passed 200 employees worldwide, with big plush offices in Denver, New York, and London, and dozens of amazing people who work from the comfort of their own homes. (By the way, if 200 people seems like a lot, keep in mind that more than half of them are working on Stack Overflow Careers).
>We could just slow down our insane hiring pace and get profitable right now, but it would mean foregoing some of the investments that let us help more developers.
Which implies they are making a few bob from careers etc if they could slow hiring and be profitable with 200 employees.