Which UK Dragon's Den investor founded the Bannatyne health-club group?

Duncan Bannatyne founded the Bannatyne health-club group.

Bannatyne built a business empire across leisure, hotels and health clubs before becoming one of the original Dragons on the UK television series. The Bannatyne Group operates health clubs and spas under his name, making it one of the clearest examples of a Dragon's personal business identity becoming a major brand.

He joined the first UK panel in 2005 and remained associated with the programme for several series. On screen, Bannatyne was known for direct questioning and for focusing closely on the entrepreneur's numbers and proposed equity.

The health-club business should not be confused with Bannatyne's earlier ventures, which included care homes and hotels. His surname identifies the group, but the answer sought here is the investor and founder himself: Duncan Bannatyne.