THE ROYAL UNITED SERVICES INSTITUTE FOR DEFENCE AND SECURITY STUDIES
Activities
As described by the charity on the register
RUSI is the UK's leading independent think tank on international defence and security. Its mission is to be an analytical research-led global forum for informing, influencing and enhancing public debate on a safer and more stable world.
Latest income
£16.6m
Expenditure
£16.6m
Financial year end
2025-03-31
Income & spending history
As reported to the Charity Commission, by financial year end
| Year end | Income | Expenditure | |
|---|---|---|---|
| 2021-03-31 | £11.1m | £9.4m | |
| 2022-03-31 | £15.4m | £11.8m | |
| 2023-03-31 | £16.8m | £16.0m | |
| 2024-03-31 | £18.7m | £18.2m | |
| 2025-03-31 | £16.6m | £16.6m |
Latest detailed return
Year end 2025-03-31 · consolidated (group) figures
Income mix
| Donations & legacies | £1.6m |
| Charitable activities | £14.2m |
| Trading | £830k |
| Investment income | £5k |
| Total income | £16.6m |
Spending
| Charitable spend | £15.5m |
| Raising funds | £1.0m |
| Grants to institutions | £0 |
| Governance | £132k |
| Total expenditure | £16.6m |
Balance sheet
| Reserves | £5.0m |
| Total funds | £16.9m |
| — restricted | £3.6m |
| — unrestricted | £13.3m |
| — endowment | £0 |
| Total assets | £16.9m |
| Cash | £5.1m |
People
| Employees | 113 |
Classification
The charity's own register classification
What it does
- Other Charitable Purposes
Who it helps
- The General Public/mankind
How it works
- Provides Services
- Sponsors Or Undertakes Research
- Other Charitable Activities
Source: Charity Commission for England and Wales register, 2026-07-28. Detailed figures as filed in the charity's annual return. Contains public sector information licensed under the Open Government Licence v3.0.