The Civil Aviation Authority has said Paragon Sports Management Ltd has ceased trading.
The company, registered as ATOL 6724, was based in Richmond, London and traded under the names Paragon Hospitality and Paragon Elite and the website thisisparagon.co.uk
The CAA said: "We are currently collating information from the company and will email ATOL-protected consumers with details on how they may make a claim."
Its website says: "Paragon are an award-winning event and talent agency based in Richmond-upon-Thames, London.
"We have over 18 years’ experience delivering exceptional events, home and abroad, with a little black book of celebrity contacts that spans the breadth of the sporting and broadcasting world."
















