The Ancient Monuments Society

Analysis

The Ancient Monuments Society is a registered charity in England and Wales, based in London. It was registered in October 1962, 64 years ago. Its declared purposes cover environment/conservation/heritage, which this site groups under environment and conservation. It says it provides advocacy/advice/information.

In the financial year ending December 2025, The Ancient Monuments Society reported income of £75k and spending of £251k, spending 332% of what it took in. Across the 5 years on record, from December 2021 to December 2025, income fell from £402k to £75k (-81%), an average of -34% a year. The sharpest change came in the year to December 2025, when income dropped by 68%. Over the whole period it spent 113% of the income it received.

Among 4,574 England and Wales charities whose main cause is environment and conservation and that reported income, The Ancient Monuments Society sits at the 75th percentile: it is larger than about 75% of them. Against every charity in England and Wales with reported income it ranks in the 67th percentile. Charities of a similar size with the same main cause include The Manfred Horstmann Vulture Conservation Trust (£75k), The Derwent and Wye Valley Railway Trust Limited (£76k) and Nartm (£75k).

Data notes from the register: Spending has exceeded income in each of the last three reported years, so the charity has been drawing on reserves or other funds.