You should see what the ownership graphs of most multinationals look like. I did an analysis of JP Morgan at one point and I kid you not the list of companies in small type with no formatting took 10 pages to print out.
For all the people who are saying that this is hacking the legal system you are correct. This is routinely done and I recommend you spend some time reading up on it, because it is fascinating.
For example, did you know that most cities are corporations?