The Mammal Society
Analysis
The Mammal Society is a registered charity in England and Wales, based in Gloucester. It was registered in December 1979, 47 years ago. Its declared purposes cover education/training, animals and environment/conservation/heritage, which this site groups under animals. Legally it is a charitable company (Companies House number 01455136). It says it makes grants to individuals, provides advocacy/advice/information and sponsors or undertakes research.
In the financial year ending December 2025, The Mammal Society reported income of £266k and spending of £322k, spending 121% of what it took in. Across the 5 years on record, from December 2021 to December 2025, income fell from £307k to £266k (-13%), an average of -3.5% a year. The sharpest change came in the year to December 2022, when income rose by 18%. Over the whole period it spent 104% of the income it received.
Among 2,161 England and Wales charities whose main cause is animals and that reported income, The Mammal Society sits at the 79th percentile: it is larger than about 79% of them. Against every charity in England and Wales with reported income it ranks in the 84th percentile. Charities of a similar size with the same main cause include Actasia (£265k), Amicii Dog Rescue (£267k) and Chillingham Wild Cattle Association Ltd (£265k).
Income and spending
Where the income comes from
- Other 100%
In the charity's own words
The Mammal Society works to protect British mammals, halt the decline of threatened species, and advise on all issues affecting British mammals. We study mammals, identify the problems they face and promote conservation and other policies based on sound science.
Similar-sized charities, same cause
| Charity | Location | Income |
|---|---|---|
| Actasia | London | £265k |
| Amicii Dog Rescue | Peterborough | £267k |
| Chillingham Wild Cattle Association Ltd | Alnwick | £265k |
| Oxfordshire Wildlife Rescue | Oxfordshire | £269k |