Mr.David Berryman  Bsc and Msc in biological sciences from English Universities .He formed the David Berryman company limited in 1987 and  remain its Chief Executive Officer to this day. In addition to his role with the company (DBL), he is active in a number of other activities. 

British Fruit Juice Association (BFJA). A committee member and have the specific responsibility of liaising with the British Government on behalf of the Fruit Juice Industry. 

International Fruit Union (IFU). The Chairperson of the Marketing Commission of this international organisation, 

Conference Speaker. Many times as speaker at several international conferences on various topics. 

Consultant. As a consultant on a number of juice related topics.