Interlocking Directorates
Michael Useems' study of the US and UK found that even in the early 1980s large corporations were becoming more and more interrelated through shared directors and common institutional investors.
Various studies have shown that interlocking directorates have grown even more in the ensuing decades and have become more global. What is more the size of corporate boards has decreased whilst the proportion of outsiders on each board has increased with CEOs and executives from other companies therefore dominating the composition of many boards.
In the US corporations with the most extensive connections – American Express, Sara Lee, Chase Manhattan Bank, General Motors, Procter and Gamble – tend to play a central role in business network. Their directors are 90-95 percent male, 95 percent white, usually business executives, bankers or corporate lawyers, and tend to vote Republican. The few business leaders who don’t fit this profile, nevertheless, adhere to corporate values. These directors, along with the leaders of supporting think tanks and policy groups, constitute a corporate class with common interests in fostering a pro-business political climate that has minimal scope for democratic intervention.
Some interlocking directorates in key corporations mentioned in this website are shown in figure below. Corporations that are joined by a line have at least one shared person on their board of directors. So for example, AIG has directors that are also directors of JP Morgan, Time Warner and Eli Lilli.

and http://www.theyrule.net/2001/
Links
- 'Interlocking directorate', Wikipedia
- 'They Rule', allows you to create maps of the interlocking directories of the top companies in the US.

