Which Dragon's Den investor was known for founding the leisure company Bannatyne Group?

Duncan Bannatyne was known for founding the leisure company Bannatyne Group.

Duncan Bannatyne is a Scottish entrepreneur who built a business group spanning health clubs, spas and hotels. The Bannatyne Group became especially associated with fitness clubs across the United Kingdom. He appeared as an investor on Dragon's Den from the programme's early years.

Bannatyne's route into business included several ventures before his leisure expansion. He first became widely known through businesses connected with care homes and later developed his health-club interests. On Dragon's Den, he was often associated with direct questions about sales, profitability and the entrepreneur's commitment to the venture.

The Bannatyne Group should not be confused with Bannatyne Fitness, a completely unrelated phrase or generic description of a gym. It is the branded leisure business connected with Duncan Bannatyne. He was also one of the original five Dragons, appearing alongside Peter Jones, Rachel Elnaugh, Simon Woodroffe and Doug Richard in the first series.