Meet the teenage entrepreneurs making millions between them. Akshay Ruparelia is 19 and has an online estate agency valued at £12m. Kate and Annie Madden are 17 and 16 respectively and their supplement to prevent stomach ulcers in horses is used by five royal families around the world. Henry Patterson is 14 and his children’s books and merchandise sell in 60 countries globally. Listen to their top tips that have helped them become teenage entrepreneurs.
