White & Case was ranked the number one global law firm by legal publication Law360 in its annual "Global 20" list of the 20 law firms with the greatest global reach and expertise. The Firm has been ranked in the top five for all seven years that the Global 20 list has existed, having been ranked number one in 2014.
In order to make the Global 20, firms are evaluated based on a host of quantitative and qualitative factors. In terms of the numbers, each firm must have office locations in numerous countries, and a significant portion of their attorneys and offices must be outside of their home country. Each firm on the list is also scored based on both the range and the complexity of its international work.