Many people do not realize that Github has an enterprise product called github:enterprise. Aside the money they raised for this round, there are also help comes together from the VC, Andreessen Horowitz in this case.<p>I don't have any experience in enterprise sales. But, from what I know, enterprise isn't a market that the best product always wins. Yes, Github definitely has one of the best products out there. But, they definitely don't have the required experience to push their enterprise product to the market(look at the developers heavy team). The VC will definitely help in this case.<p>Now, look at another similar product in the market, Atlassion, which raised about 60 millions almost two years ago from Accel. That was also after years of bootstrapping from Atlassian itself. 2 years ago, the funding market was definitely not as good as the funding market today. Yet, Atlassian managed to raise 60 millions. So, the 100 millions Github raised today seems reasonable to me.