The American programme Shark Tank, based on the Dragon's Den format, premiered in 2009.
Shark Tank debuted on ABC in the United States on 9 August 2009. It adapted the international investor-pitch concept for an American audience, replacing the British “Dragons” branding with investors called “Sharks.”
Entrepreneurs on the programme present businesses, request specific sums and offer equity. The Sharks question them and may make offers, negotiate terms or decline. These mechanics connect the programme to the earlier Japanese Money Tigers format and the British Dragon's Den adaptation.
Shark Tank is sometimes dated from later seasons or from its wider rise in popularity, but its television premiere was in 2009. It should also not be confused with the Australian and Canadian versions of Dragon's Den, which are separate national adaptations.