Derb,
Good sleuthing! They are related, not the same people with a typo. I suspected the same until my research found otherwise. You're hot on the trail. Do a little research on the last name...the connection you find, if you find what I have so far, is stunning. Ask yourself, why would you need so many companies to do the exact same thing? Also remember what some have said..."If you understand the players, you understand the game."
IMO/FWIW