In the BBC series Dragon's Den, which Dragon founded the health-club chain Bannatyne?

Duncan Bannatyne founded the Bannatyne health-club chain and later became one of the investors on the BBC series Dragon's Den. His business interests also included hotels, spas and care homes.

Bannatyne began his working life in different ventures before building a major business group. The health-club company became particularly associated with gyms, fitness facilities and wellness services across the United Kingdom.

On Dragon's Den, Bannatyne was recognised for a direct questioning style and for focusing on whether entrepreneurs understood their numbers. His background made him a natural source of scrutiny for pitches involving hospitality, leisure and consumer services.

The name of the health-club chain provides the clearest identification clue. Bannatyne is both the investor's surname and the brand name, whereas other Dragons were associated with businesses such as Ryman, Phones 4u or Amstrad.