Charitable organization
nonprofit organization with charitable purpose
Society of the Faith
Society of the Friends of the People
Soil Association
Solihull School
Somerset Archaeological and Natural History Society
Somerset Wildlife Trust
Sound Seekers
South Manchester Synagogue
South Trafford Archaeological Group
South Wales Institute of Engineers
South Wales Miners' Museum
South West Coast Path Association
Spalding Gentlemen's Society
Spalding Trust
Stafford Grammar School
Stillbirth and Neonatal Death Society
Stock Exchange Rifle Club
Stockport Grammar School
Stone Family Foundation
Stowe School
Street Child of Sierra Leone
Stroke Association
Structural Genomics Consortium
Student Christian Movement of the United Kingdom
Sue Ryder
Suffolk Family History Society
Suffolk Agricultural Association
Suffolk Wildlife Trust
supporting organization
Surfers Against Sewage
Air Ambulance Kent Surrey Sussex
Survivors Fund
Sussex Archaeological Society
Sussex House School
Sussex Wildlife Trust
Sutton Trust
Sylva Foundation
TOPS Club
Talbot Heath School
Talking Newspaper Association of the United Kingdom
Teach First
Teenage Cancer Trust
Terra Nova School
The Abbey School
The Albert Kennedy Trust
The Architecture Foundation
The Aurora Group
Bat Conservation Trust
The Big Issue Foundation
The Boys' Brigade in the United Kingdom