For this thread only WBA, IBF, WBC count. Also interim champs do not count-you have to beat a champ to become one.
Kyoei gym in Japan might be worth a mention...Pretty sure they are in double figures now. They certainly benefited when boxing introduced more divisions and titles.
Gleasons claim 131 world champions on their website. That would obviously be across all divisions and all organisations - see link below: This content is protected
newbridge gym in wales, certainly had a collection, with joe calzaghe, gavin rees, enzo maccarinelli, all world champions at the same time, haha no wear near 131, but still quite impressive for a small rugby nation to have 3 world champs at the same time in 1 gym ahh sorry a forgot about the WBA, IBF , WBC
Wincobank are quality by Brit standards - Hamed, Bomber Graham (ok not a champ), Jonny Nelson, Junior Witter. All homegrown talent
No stats to back-it-up, GP, but feel sure Stillman's would claim the honor. Since Benny Leonard first set foot in Stillman's Gym after WW1, to it's close in 1959, the pinnacle for any young boxer was : Training at Stillman's 'n fighting the main-go at Madison Square Garden.
Kronk Gym Detroit Michigan - Thomas Hearns Dennis Andries Wilfredo Benitez Julio César Chávez Kermit Cintron Oscar de la Hoya John David Jackson Naseem Hamed Oliver McCall Evander Holyfield Hilmer Kenty Wladimir Klitschko Michael Moorer Mike McCallum Milton McCrory Steve McCrory Gerald McClellan Lennox Lewis Jimmy Paul Jermain Taylor Duane Thomas James Toney Ole Klemetsen Kronk Gym/ Emmanuel Steward has trained over 20 World Champions. Nacho Beresteins Gym is good aswell, he has trained over 8 or 16 world champs.
Very interesting indeed, thanks. However it is still an open question whether those 131 world champions are all homegrown talent truly produced by the gym, or they are claiming as their own every and any champion who ever trained there, even briefly