The Association of Bird Watchers and Wardens was created and tasked with watching nests and guarding birds and their eggs from illegal take

The Association of British Zoologists was formed at the Meeting of British Zoologists on 5 Jan 1929 "to ensure a permanent organisation, with a Council which can represent British Zoologists between their annual Meetings". The first Council meeting was on 11 Jan 1930. Final meeting held 13 Jan 1973

A small group of British and foreign bird-keeping enthusiasts met in Brighton in 1894 with a view to forming a society devoted to their interests. The newly formed society started with 52 members. In November of that year, the first issues of the society's magazine carried an editorial in which the joint editors proposed that members should be known as aviculturists

The Bombay Natural History Society is one of the largest non-governmental organisations in India engaged in conservation and biodiversity research

The British Herpetological Society is an international herpetological society based in the United Kingdom. The BHS is a non-profit organisation with goals to support the conservation, education and captive care of reptiles and amphibians. The society regularly publishes the Herpetological Journal and Herpetological Bulletin on a quarterly basis. It is one of the oldest international herpetological societies.

The society was established in 1947 with the help of Dr Malcolm A Smith who was a physician who practiced in the Royal Court of Siam. Whilst in Siam, Dr Smith studied the herpetofauna as well as that of south-east Asia. After retiring, he returned to Britain where he developed an interest in the native reptiles and amphibians. This led him founding the society as a way to promote the values he saw fit in regards to the herpetofauna of the British Isles and the wider landscape

The British Museum is a public museum dedicated to human history, art and culture located in the Bloomsbury area of London. Its permanent collection of eight million works is the largest in the world. It documents the story of human culture from its beginnings to the present. The British Museum was the first public national museum to cover all fields of knowledge.

The museum was established in 1753, largely based on the collections of the Anglo-Irish physician and scientist Sir Hans Sloane. It first opened to the public in 1759, in Montagu House, on the site of the current building. The museum's expansion over the following 250 years was largely a result of British colonisation and resulted in the creation of several branch institutions, or independent spin-offs, the first being the Natural History Museum in 1881.

In 1973, the British Library Act 1972 detached the library department from the British Museum, but it continued to host the now separated British Library in the same Reading Room and building as the museum until 1997

Fauna & Flora is an international nature conservation charity and non-governmental organisation dedicated to protecting the planet's threatened wildlife and habitats.

Founded as the Society for the Preservation of the Wild Fauna of the Empire, the society created some of the first game reserves and captive breeding programmes during the 20th century. The society's peer-reviewed scientific journal, now known as Oryx, has been publishing conservation science articles since 1904.

The Society was founded as a private organisation in 1903 by a group of members of the British aristocracy and American statesmen in colonies in Africa. A central founding figure was Edward Buxton, who had previously sought to protect areas of the UK. The goal of the society was to safeguard the future of southern Africa's large mammal populations, which had declined due to over-hunting and habitat encroachment, within game reserves. From 1903-1914, the society lobbied the British colonial government to protect areas of natural resources, control the ivory trade and change the policy of exterminating wildlife to control tsetse flies. The Society played a major part in legislation which controlled hunting and preserved habitat in East Africa and South Africa, paving the way for the formation of some of the first National Parks and influencing the future of nature conservation

The Freshwater Biological Association is an independent scientific organisation founded in 1929 in Cumbria by Felix Eugen Fritsch, William Harold Pearsall, Francis Balfour-Browne, and Robert Gurney among others. Whilst originally created to be a research station it has evolved into a learned society whose mission is "to promote the sustainable management of freshwater ecosystems and resources, using the best available science."

The Institute of Zoology is the scientific research division of ZSL. It is a government-funded research institute, which specialises in scientific issues relevant to the conservation of species and their habitats. The Institute of Zoology focuses its research on five areas: evolutionary biology, genetics, ecology, reproductive biology and wildlife epidemiology. The Institute was graded 4 in the 1997-2001 UK Research Assessment Exercise, and publishes reports annually. From the late 1980s the Institute of Zoology had been affiliated to the University of London. However, in 2000 this was replaced with a partnership with the University of Cambridge

In 1976 the Nuffield Institute of Comparative Medicine, the Animal Hospital, and the Pathology Laboratory were integrated to form the Institute of Zoology.