Which Dragon's Den investor was known for owning the health-club company Bannatyne Group?

Duncan Bannatyne was known for owning the health-club company Bannatyne Group.

Bannatyne built a substantial business empire in the United Kingdom, with interests that included health clubs, spas and hotels. The Bannatyne Group became particularly associated with fitness facilities operating under his surname. His business career began before his television work, and the health-club enterprise helped establish his reputation as an entrepreneur.

He joined the Dragon's Den panel in the programme's first series and became one of its most recognisable original investors. His direct style and interest in practical businesses made him a prominent figure in the show's early years.

The Bannatyne Group should not be confused with Bannatyne Fitness as a generic description of gyms, or with another Dragon's primary business. Duncan Bannatyne's surname is the identifying link between the investor and the health-club company. He later left the programme, but his association with the original panel remains strong.