The story
Founded by Vitali Klitschko in 2003.1
Private company
Ukrainian boxers
Vitali Klitschko (born 19 July 1971) and Wladimir Klitschko (born 25 March 1976), known as the Klitschko Brothers, are Ukrainian former professional boxers. During their peak years between 2004 and 2015, they were considered the dominant world heavyweight champions of their era, and among the most successful champions in boxing history.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
See how the biggest companies compare on our leaderboards
Vitali Klitschko (born 19 July 1971) and Wladimir Klitschko (born 25 March 1976), known as the Klitschko Brothers, are Ukrainian former professional boxers. During their peak years between 2004 and 2015, they were considered the dominant world heavyweight champions of their era, and among the most successful champions in boxing history.2
Founded by Vitali Klitschko in 2003.1
Who has led K2 Promotions, and when. Pick a name to see everywhere that person has worked.
The numbers on this page point here. Each one links to the record it came from.