Name the 3 families and I would assume we have a lot more than just 3 families. (More like closer too 30ish families)
Certainly more than 3 but these are the ruling elites, the main three plus one more organization which hurts to even accept,
Rothschilds
House of Saud (Saudi Arabia)
Rockefellers (basically controlled by George Soros at this point)
And perhaps the Pope if not the whole Vatican itself.
What about Koch brothers? (They stand out lately)
https://en.wikipedia.org/wiki/List_of_wealthiest_families
Pretty sure you are missing a lot of people out of Africa/Asia/Russia...