Stuart is acknowledged as a leading world expert in the field of animal osteopathy. Having graduated from the European School of Osteopathy in 1984, he holds 39 years of practical and teaching experience. Prof. McGregor has trained the majority of animal osteopaths working in the UK and many other countries around the world today.

Rachel is Head Instructor at  London College of Animal Osteopathy, who runs a busy osteopathic practice in Southwestern Ontario, Canada. Rachel has a Medical Science degree and a Master's Certificate in Osteopathy. Her professional interest lies in comprehending and researching the intricacies of animal anatomy and biomechanics.

Jim´s impressive client list includes internationally competing agility dogs, five-star event horses, pedigree show bulls, and many other species. To ensure his patients receive the best possible care, Jim collaborates with consultant farriers, behaviorists, veterinary surgeons, saddle fitters, trainers, and other bodywork professionals. Since 2023, Jim has been teaching LCAO masterclasses all around the world.

Rachel is the owner of The Dog Osteo, which is situated in NSW, Australia. She provides treatment to a diverse range of dogs, including many Australian Champion Show and Sporting Dogs. Rachel works closely with veterinarians, breeders, and dog trainers. Since 2022, she has been an LCAO Masterclass Instructor, sharing her extensive knowledge in the osteopathic treatment and rehabilitation of dogs with students all over the world.

Hannah is an accomplished animal osteopath based in Oxfordshire, UK, who specializes in treating both small and large animals. She works closely with veterinarians and manages pre-operative diagnosis and post-operative rehabilitation. Her passion for anatomy and biomechanics is evident in her teaching, which she has been doing for 25 years alongside Stuart McGregor, both in the UK and abroad. In 2022, she joined the LCAO team as a Masterclass instructor for canine and equine osteopathy.