Which former Dragons' Den investor founded the mobile-phone retailer Phones 4u?

John Caudwell founded the mobile-phone retailer Phones 4u before becoming a Dragons' Den investor.

Caudwell built his fortune in the telecommunications retail sector. Phones 4u grew into a major British chain selling mobile phones, contracts and related services, making Caudwell one of the country’s best-known entrepreneurs.

He served as a Dragon during the programme’s early period. His business background is distinct from that of investors whose careers were based primarily in fashion, retail brands, technology products or property.

Phones 4u is often confused with other British mobile businesses because the sector changed rapidly as mobile ownership expanded. The company’s founder was Caudwell, while the retailer’s later corporate history involved ownership and trading developments after its period of rapid growth.