Charles Cooke qualified from the Royal Veterinary College, London in 2000 and went to work with Dr Jonathan Pycock at Equine Reproductive Services in Yorkshire and in the Southern Hemisphere for four years. In 2004 he moved to Rossdale and Partners, Newmarket and worked predominately on Thoroughbred studs but was also involved with the breeding of Suffolk Punch horses and Connemaras. After a short time in Somerset he moved back to Yorkshire before re-joining Equine Reproductive Services (UK) Ltd in 2013. Charlie joined James as a director of Equine Reproductive Services (UK) in 2016.

​Charlie was awarded the RCVS Certificate in Equine Stud Medicine in 2008 and has been an honorary lecturer at Liverpool University since 2014. Charles and lectures regularly at veterinary conferences and at veterinary CPD. He is involved in all aspects of equine stud medicine including natural breeding, artificial insemination and embryo transfer on all types of horses and ponies. Charles has an interest in young-stock management and preventative medicine on the stud farm (particularly worm control), treatment of the ‘sub-fertile’ mare, foetal sexing and the management of hormone-related behavioural problems in competition horses. Aside from the reproductive work Charlie is regularly involved in racing, sport horse and pleasure horse veterinary care. ​

 Charlie is recognized as an Advanced Practitioner in Equine Stud Medicine and is a current member of the British Equine Veterinary Association and Association of Racecourse Veterinary Surgeons. ​

Outside of work Charlie enjoys working his dog, the countryside and spending time with his family invariably at a pony club event.

Prof. Jacqui Matthews qualified as a veterinary surgeon before completing a PhD in parasitology at the University of Glasgow. She then worked in academia for over 25 years, leading a range of interdisciplinary projects focused on helminths of ruminants and horses.

During this time, she taught many undergraduates and postgraduates in the subject area, and was awarded more than £15 million in competitive funding for research. She has published over 160 peer-reviewed research papers and reviews. Her research has primarily focused on vaccine and diagnostic test development to underpin sustainable parasite control. She has written numerous lay articles, given seminars and workshops to stakeholders promoting best practice control practices, and for many years, was technical advisor to the Control of Worms Sustainably in Cattle initiative and parasitology expert on the UK Veterinary Products Committee. She sits on several sub-groups of the CANTER initiative, set up to develop and promote best practice guidelines for parasite control in horses and has authored several chapters in the guidelines. 

Jacqui was conferred fellowship of the Royal College of Veterinary surgeons for meritorious contributions to knowledge in 2017, and is a fellow of the Royal Society of Biology, the Royal Society of Edinburgh and is a RCVS recognised specialist in Veterinary Parasitology. One of her inventions, a blood test for equine small redworms, was commercialised by Austin Davis Biologics in 2019 and, in 2022, she moved to this company as Director of Veterinary Science, where she leads the research and development programme and works closely with end-users in promoting evidence-based worm control in horses.

Dr. Nielsen graduated with his DVM degree from the Royal Veterinary and Agricultural University, Denmark in 2001. He spent three years in equine veterinary practice before joining graduate school. He received his Ph.D. in equine parasitology at University of Copenhagen in 2007, and served as assistant professor there until 2011.

He then joined the M.H. Gluck Equine Research Center at University of Kentucky where he now serves as associate professor and holds the title of Schlaikjer Professor in Equine Infectious Disease.