England
Binfield Badger Group, Butterfly Conservation Cheshire & Peak Branch, Cornish Wildlife, Countryside Management Projects, Essex Wildlife Trust (Braintree Group), Greenwood Community Forest, High Woods Country Park Volunteer Rangers, Moor Trees, Oxford Urban Wildlife Group, Trent Rivers Trust
Northern Ireland
Conservation Volunteers Northern Ireland, Millennium Tree Campaign, Ulster Wildlife Trust
Scotland
Dalgety Bay Woodland Group, John Muir Trust, Raptor World, Scotland's Moorland Forum, Scottish Wildlife Trust, Fife and Kinross Branch, The Friends of Ben Rinnes
Barn Owl Conservation Network
A UK network of specialist voluntary advisors, working to help this threatened species by promoting a nationwide habitat creation scheme coupled with the installation of nestboxes.
British Butterfly Conservation Society
Dedicated to saving wild butterflies, moths and their habitats throughout the UK.
British Dragonfly Society
Encouraging the study and conservation of dragonflies and their natural habitats, especially in the United Kingdom.
British Trust for Conservation Volunteers
Supporting volunteering opportunities throughout the UK and across the globe.
Buglife: The Invertebrate Conservation Trust
A charity dedicated to maintaining sustainable populations of insects, spiders and earthworms. Includes information on species and current projects, vacancies, contact details, and links to related sites.
Froglife
Works with volunteers, ecologists, government departments and the public to conserve the native amphibians and reptiles of Britain and Ireland.
Mammals Trust UK
Charity dedicated to raising funds to help conserve all UK native species and raise funds for scientific research.
Marine Conservation Society
UK charity dedicated to the protection of the marine environment and its wildlife. Includes information about marine resources and current threats.
National Trust (UK) - Environment and Conservation
Details original documents on environmental issues, nature conservation, sustainability, archaeology, agriculture, buildings, rural development, forestry, volunteers, and gardens.
North Wales Butterflies
Branch of the UK charity "Butterfly Conservation", helping to save local butterflies, moths and their habitats. Includes events, articles, gardening, photos.
Royal Society for the Protection of Birds
Promotes conservation of birds and other wildlife through the protection and re-creation of habitats. News, history, programmes, membership, articles, nature reserves, conservation issues, and education.
Royal Society of Wildlife Trusts
Charity dedicated to the protection of nature offers information about species and habitats, articles and news items, an events directory, volunteer opportunities, and details of campaigns and appeals.
Shark Trust
A non-profit organisation that campaigns for shark conservation and legislation to protect sharks from overfishing. With online petitions, adoptions, information, and gallery.
The British Association of Nature Conservationists
Comment and factual reporting on UK conservation.
The Game Conservancy Trust
UK game conservation charity. Information on game species, research, publications.
The Mammal Society
Working to protect British mammals, halt the decline of threatened species, and advice on all issues affecting them.
The Sand Martin Trust
Gives anyone interested in conservation a chance to help the Sand Martin, and to get further information regarding this species in Britain.
UK Farming and Wildlife Advisory Group
Provides farmers, landowners and our other clients with advice on adjusting farm operations to support wildlife, landscape, archaeology, access and other conservation issues.
Whale and Dolphin Conservation Society (WDCS)
An international charity dedicated to the worldwide conservation and welfare of whales, dolphins and porpoises (cetaceans). Includes a species guide, campaign and field project news, and opportunities for active involvement.