THE ROYAL UNITED SERVICES INSTITUTE FOR DEFENCE AND SECURITY STUDIES
Registration #210639 · Registered
www.rusi.orgdirector@rusi.org
RUSI WHITEHALL SW1A 2ET
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.
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About THE ROYAL UNITED SERVICES INSTITUTE FOR DEFENCE AND SECURITY STUDIES
THE ROYAL UNITED SERVICES INSTITUTE FOR DEFENCE AND SECURITY STUDIES is a registered charity in England and Wales (registration number 210639), rated "Platinum" with a CharityScore of 88/100 — one of the highest-rated charities in England and Wales based on official Charity Commission data. In its most recent reporting year (2025), THE ROYAL UNITED SERVICES INSTITUTE FOR DEFENCE AND SECURITY STUDIES reported a total income of £16,616,542 and total expenditure of £16,561,198 (a spending ratio of 100%, indicating strong allocation of funds to charitable activities). According to the Charity Commission, THE ROYAL UNITED SERVICES INSTITUTE FOR DEFENCE AND SECURITY STUDIES operates with the following stated purpose: 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. No significant governance concerns were identified for THE ROYAL UNITED SERVICES INSTITUTE FOR DEFENCE AND SECURITY STUDIES in our analysis. This profile is based on publicly available data from the Charity Commission for England and Wales and is updated regularly. CharityScore provides independent, data-driven transparency ratings to help donors give with confidence.
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Financial History
Latest spending ratio: 99.7% of income spent on charitable work
| Year | Income | Spending | Ratio |
|---|---|---|---|
| 2025 | £16,616,542 | £16,561,198 | 100% |
Data sourced from the Charity Commission for England & Wales · Last scored 6/11/2026