Peter Jones was the longest-serving investor on the original regular UK Dragons' Den panel.
Jones is a British entrepreneur and businessman whose interests have included mobile communications, technology, leisure and retail. He joined the programme at its beginning and became one of its most recognisable investors. His continued presence across many series made him a defining figure in the British version of the format.
The distinction is between the original regular panel and every investor who has ever appeared. Dragons' Den has changed its line-up over time, with investors joining, leaving and returning as the programme developed. That makes questions about “longest-serving” sensitive to wording: Peter Jones is the canonical answer for the long-running original panel role, while other Dragons have held prominent positions for substantial periods. He should also not be confused with the presenter, Evan Davis, who hosts the programme but does not invest.