
Source: Financial Times Global 500.
The World’s 20 Largest Corporations by Market Value, 2007 ($US millions)
There is significant temporal variations of the ranking of the world's largest corporations which goes with the ebb and flows of the global economy. For instance, in early 1990s, the were a substantial number of Japanese banks and industrial conglomerates among the largest corporations, which after economic setbacks are no longer among the top. In recent years, energy companies have improved their ranking due to significant increase in energy prices. American corporations remain among the largest.