Based in South-East England, Trevor and wife Caroline run Breen Sport Horses. Trevor has enjoyed a great deal of success to date, competing both on the national and international circuit. He has been a regular member of the Irish Team since 2007. Caroline has also showjumped internationally, having spent a number of years with Tim Stockdale and now looks after the training and business side of Breen Sport Horses.
Trevor enjoys producing the younger horses to international level, where he has represented Ireland on numerous occasions, including the World Breeders Federation of Sport Horse Championships at Lanaken.