The International Zoo Veterinary Group (IZVG) was founded in 1976, by the association of two veterinary practices which were involved in full-time freelance zoo animal medicine.
One associate practice, Dinnes Memorial Veterinary Hospital, is based in California and works mainly in the United States and the Far East; the other, Taylor, Greenwood, Lewis and Thornton is based in Britain and works mainly in the UK, Europe and the Middle East.
The group work with zoos, parks and marine lands around the world, treating wild, rare and endangered species.
Drs. Taylor, Greenwood and Lewis are recognised as Specialists in Zoo and Wildlife Medicine by the Royal College of Veterinary Surgeons and Drs. Taylor, Greenwood, Lewis and Thornton are UK government-appointed Zoo Inspectors.
The link above to the website relates to the activities of the UK part of the organisation.
The website has 2 further links, 1 for Zoos and another for the practice in Bradford, which is open to the public.