I also wonder where these figures came from: "Computer hardware and software, semiconductors, communication, and biotechnology account for 81 percent of all ven

I also wonder where these figures came from: "Computer hardware and software, semiconductors, communication, and biotechnology account for 81 percent of all venture capital dollars, and 72 percent of the companies that got VC money over the past 15 or so years." I see a lot of these types of statistics in articles about startup financing. As far as I know, there's no publicly available database of VC transactions. Anyone know where these numbers could be coming from?