As there is a former dragon on this list, it’s only fair we include a former participant who made it big.

Levi Roots and his Reggae Reggae Sauce is one of the most lucrative investments to have come out of the show, after he attracted the attention of Peter Jones and subsequently Sainsbury’s.

His career has been as colourful as his flavours, having sung for Nelson Mandela, hosted his own TV series and dabbled in acting. His talks are full-bodied, too. Humorous and entertaining, Levi guides business owners on how to make a success themselves, having passion and finding their very own recipe for success. 

Image credit: A Campbell