At present he holds positions in 35 companies, including pawn shops and "pay day loan" businesses.
He has been involved in a number of companies which operated tax avoidance schemes, which were subsequently overturned by HMRC.
Jenner, and his business partner Anthony Mehigan, set up the Cup Trust charity in 2009.
The Cup Trust, which was registered through Mountstar (PTC) Ltd in the Caribbean, received £177 million in donations in a year.
[1][2] Gift Aid is a facility offered by HMRC for charities to reclaim basic rate tax on donations.