STEPHEX Horsetrucks is a horse truck construction company founded in 2005 by Stephan Conter. It is the uncontested European leader within the field, with several brands to its name: STX Horseboxes and STX Two Horses, Equix, AKX and Ketterer.

Gavin Cooper from Cooper Horse Trucks is the sole distributer of these trucks in Ireland. He brought the first right hand drive into Ireland in 2013 and since then they have become very popular, leading sales in the premium segment.