THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES
The IISS aims to provide, from an international perspective, the best objective information on military and political developments and to assist in conflict resolution through the conduct of dialogues and conferences, research and publications. Its mission is to promote the adoption of sound policies to further global peace and security and maintain civilised international relations.
Financial health, per its FY2025 accounts
The accounts state that the Institute held free reserves of £11,896,000, which equated to approximately 6 months of operating expenditure, meeting the Trustees' policy target of between 3 and 6 months. Per the Trustees' report, the financial health is considered sound, with total net assets increasing to £39,417,000 and no loan liabilities at the year-end.
What the accounts disclose
“the Trustees aim to hold free reserves equivalent to between 3 and 6 months operating expenditure.”
“The Institute’s commercial trading subsidiary, Arundel House Enterprises Limited (AHEL), experienced much improved trading conditions” — page 14
Property (HM Land Registry)
Structured financials (annual return, FY ending 30/09/2025)
Trustees
- Lord Mark Sedwillchair
- BILL EMMOTT
- Caroline Atkinson
- Chung Min Lee
- Dr Grace Skaugen
- Florence Parly
- Hakeem Belo-Osagie
- John Brennan
- Kasper Rorsted
- Matthew John Symonds
- Matthew Symonds
- Neha Aviral
Income and spending
| Financial year end | Income | Spending |
|---|---|---|
| 30/09/2025 | £31.6m | £29.5m |
| 30/09/2024 | £26.5m | £25.5m |
| 30/09/2023 | £25.0m | £25.2m |
| 30/09/2022 | £24.5m | £24.0m |
| 30/09/2021 | £18.4m | £17.6m |
Common questions
Is THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES financially healthy?
Per its FY2025 accounts: The accounts state that the Institute held free reserves of £11,896,000, which equated to approximately 6 months of operating expenditure, meeting the Trustees' policy target of between 3 and 6 months. Per the Trustees' report, the financial health is considered sound, with total net assets increasing to £39,417,000 and no loan liabilities at the year-end. Its FY2025 accounts were audited by Crowe U.K. LLP.
Who funds THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES?
Funders whose own accounts filings name THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES as a grant recipient include PRISM THE GIFT FUND.
Known funders
| Funder | Year | Amount | Purpose (as stated by the funder) |
|---|---|---|---|
| PRISM THE GIFT FUND | FY2024 | £100k | Justice and Community Development |
Funders of similar charities
| Funder | Similar charities funded | Amount to them |
|---|---|---|
| THE NUFFIELD FOUNDATION | 1 | £3.9m |
| JOSEPH ROWNTREE FOUNDATION | 1 | £355k |
| FITZGERALD FAMILY FOUNDATION | 1 | £275k |
| THE MCBAIN FAMILY FOUNDATION | 1 | £220k |
| JOFFE CHARITABLE TRUST CIO | 1 | £189k |
| THE ROTHSCHILD FOUNDATION | 1 | £170k |
| HAYDEN FAMILY (UK) LTD. | 1 | £145k |
| THE HEALTH FOUNDATION | 1 | £117k |
Charities like this
- THE ROYAL INSTITUTE OF INTERNATIONAL AFFAIRS
- INSTITUTE FOR STRATEGIC DIALOGUE
- THE ROYAL UNITED SERVICES INSTITUTE FOR DEFENCE AND SECURITY STUDIES
- THE INTERNATIONAL INSTITUTE FOR CONSERVATION OF HISTORIC AND ARTISTIC WORKS
- THE INSTITUTE FOR FISCAL STUDIES
- INTERNATIONAL INSTITUTE FOR ENVIRONMENT AND DEVELOPMENT
Side by side with its peers
| Charity | Income | Top pay band | Staff >£60k | Reserves vs policy | Fundraising cost | Going concern |
|---|---|---|---|---|---|---|
| THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES | £31.6m | — | — | unclear | — | no doubt |
| THE ROYAL INSTITUTE OF INTERNATIONAL AFFAIRS | £20.2m | — | — | unclear | — | no doubt |
| INSTITUTE FOR STRATEGIC DIALOGUE | £5.2m | — | — | above | — | no doubt |
| THE ROYAL UNITED SERVICES INSTITUTE FOR DEFENCE AND SECURITY STUDIES | £16.6m | £170,001 - £180,000 | — | below | — | no doubt |
| THE INTERNATIONAL INSTITUTE FOR CONSERVATION OF HISTORIC AND ARTISTIC WORKS | £435k | £60,000 - £69,000 | 1 | above | — | no doubt |
| THE INSTITUTE FOR FISCAL STUDIES | £13.1m | — | 35 | above | — | no doubt |