Centreline Collective is a South African equestrian training and education hub founded by Hayley Jonker in 2023. It helps riders and horses develop clearer communication, healthier movement and more ethical performance through an integrated approach grounded in biomechanics and somatic training. The Collective considers the rider’s mindset and body alongside the horse’s posture, balance and movement, aiming to address underlying causes rather than simply patch symptoms. Its teaching draws on rider and equine biomechanics, nutrition, nervous-system science and ethical performance training, informed by Hayley’s ongoing education with specialists worldwide.

Services include horse simulator lessons, workshops, membership, calls, hybrid clinics, pony camp and international-level education, including an international biomechanics symposium. The organisation also offers a store featuring Equitex saddle pads and shares information through its blog. Its approach applies principles used by elite athletes to help riders improve awareness, balance and alignment, supporting clearer cues and greater ease for the horse.