The American adaptation of the British business-pitching format Dragon's Den is called Shark Tank.
Shark Tank is an American reality television series in which entrepreneurs present companies and products to a panel of potential investors. The investors, known as sharks, can offer money in exchange for an ownership stake or negotiate terms with the founders.
The programme premiered in the United States in 2009 on ABC. It is based on the same international format family as Dragon's Den, which itself originated from the Japanese programme Money Tigers. The main naming difference reflects the regional branding: British investors are Dragons, while American investors are Sharks.
Shark Tank is not simply another title for the British broadcast. It is a separate US production with its own panel, presenters, applicants and deal history. Several other countries have also produced local versions using either the Dragons' Den or Shark Tank name.