There are a few groups that have tried compiling the names of the upper class, their business ties and connections over years.

When I was younger, I became aware of one of those groups, operating the domain

Anyway, I came across a visualization of just how interconnected the business world is, it seems many are simply oblivious to how interconnected these people, companies and groups actually are... and because of that, people will often miss bits of data because they won't understand how it all fits into the puzzle.

Anyway, I'm not vouching that the data represented is 100% accurate, people do have a habit of either changing jobs, retiring, giving the position to family, or dying... However, the connections, if broken will be replaced by a new connection, and really if there's one broken string, does that mean there is no web??

Have fun.