http://en.wikipedia.org/wiki/Ray_Dalio
http://en.wikipedia.org/wiki/James_Simons
http://en.wikipedia.org/wiki/Steve_Schwarzman
http://en.wikipedia.org/wiki/John_Paulson
http://en.wikipedia.org/wiki/Daniel_Och
http://en.wikipedia.org/wiki/David_Shaw
http://en.wikipedia.org/wiki/Steven_A._Cohen
http://en.wikipedia.org/wiki/Kenneth_C._Griffin
If you're curious as to whether I included any specific people please feel free to ask.