Why worry about predicting what the next major company will be? You are focusing on the wrong issue. The thing you should be trying to identify is what are the

Why worry about predicting what the next major company will be? You are focusing on the wrong issue. The thing you should be trying to identify is what are the major companies of today not doing quite right or not doing at all. While there are a few examples of billion dollar companies being built upon already existing ideas, the market awards billions of dollars to those who destroy the reliance upon already existing technology. A company that radically changes the way people do things for the better has a much higher probability of attaining billions in market cap than a company that comes along an provides perhaps a better user interface to an already existing service.