The 6 companies are all public owned.  You can look them up on Yahoo Finance to see who the largest owners are.  It's mostly mutual funds and banks. Ownership does not matter when it comes to the big Fortune 500 companies.  They are all (mostly) domiciled in Delaware, which has laws that make shareholders meaningless in terms of power.  They are all controlled by their Boards of Directors. Find out who is on the Board of Directors of each company, and that will tell you who runs those companies.  Keep in mind that some of the directors might also be puppets for someone else.