Penelope is principal veterinarian of Progressive Equine Veterinary Services. She has worked in the equine performance and pleasure horse industry for many years with a large proportion of her time spent on the racetrack and more recently in Mansfield, Victoria.

The practice focuses on general ambulatory medicine with a lot of lameness and laminitis issues. During the spring months she does a fair proportion of reproductive work.

The clinic manages the veterinary testing for pre-export quarantine for horses being exported to Asia, Europe and South Africa and Pos also advises and performs veterinary duties for the Victoria Mounted Police Branch.