The Lions Den was the first of it's kind here in the U.S. but I wouldn't say they were the most successful. I would even go as far as saying that The Militech Fighting Systems gym is ahead of it.
But the list of names of who is who as far as titles and accolades belongs to Greg Jackson's camp regardless of their current slump.
GSP-UFC Champ
Overeem-Dream,K-1, SF Champ
BJ Penn- UFC Champ
Dieago Sanchez-TUF Winner
Frank Mir-UFC Champ
Jon Jones-UFC Champ
Rashad Evans-UFC Champ, Tuf winner
Holy Holm- UFC Champ
Caly Guida - SF Champ
Gina Caranno-SF Champ
Demico Page- LFC Champ
Nate Mardquart- Strifeforce Champ and King of Pancrase
Karo Parysian- WEC Champ
Carlos Condit- UFC interim Champ WEC champ
Michelle Waterson- Invicta Champ
Andrei Arlovski-UFC Champ
Sarah Kaufman-SF Champ
Donald Cerone- WEC and UFC #1 Contender
Cub Swanson- UFC #1 Contender