Which dragon is the founder of the British retail company Amstrad?

Alan Sugar is the founder of the British retail company Amstrad.

Sugar founded Amstrad in 1968, and the company became known for consumer electronics, computers, and telecommunications products. His business career made him one of the most recognizable British entrepreneurs to serve as a dragon on Dragons' Den.

Although Sugar is closely linked with British business television, his best-known long-running television role was as the host of The Apprentice UK rather than as a regular investor on Dragons' Den. This distinction matters because several famous British entrepreneurs are associated with both business media and investment programmes.

Amstrad's name was derived from Alan Michael Sugar Trading. The company helped popularize affordable home computers and other consumer technology in Britain. The answer is therefore the entrepreneur behind Amstrad, not another dragon whose businesses were concentrated in retail, property, or finance.