About Us.
Meet Boy-Adrian van Gelderen and Liesl De Ceuster.
Boy-Adrian
van Gelderen.
International showjumper, trainer and horseman. Boy-Adrian founded APG Stables in 2008 and has built his career around developing horses, competing internationally and connecting the right horses with the right people.
His European Championship team gold and silver medals reflect the competitive experience behind every APG partnership.
Connect with Boy-Adrian ↗
Liesl De Ceuster.
Liesl is Boy-Adrian’s partner, and together they run APG Stables. With a strong background in dressage, she brings valuable expertise to the training and development of both horses and riders.
Liesl has extensive experience guiding riders at every stage, from their first steps in the saddle to professionals looking to refine their flatwork. Her teaching focuses on building a solid foundation, improving communication with the horse, and developing the balance and precision that carry through to every discipline.
Together, Liesl and Boy-Adrian offer a training approach that combines dressage fundamentals with practical experience in the competition ring.
