The top companies in the hedge fund industry use research, analysis and a structured decision-making process to operate on large portfolios of assets. In NYC, several hedge funds are known as the biggest hedge funds for their disciplined portfolio management. These largest hedge funds are diversifying not only in terms of the industry they invest in, but also the geographic scale. At the same time, hedge funds in San Francisco are heavily invested in tech-based projects. The two of them demonstrate how hedge funds work together and act in large numbers to work effectively in the global markets.