The International Institute for Strategic Studies
About
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.
Focus & reach
Verification & registration
Every mark links to the official registry entry and opens in a new tab.
Integrity assessment
A score from 0 to 100 for how openly a charity shares public information across five areas: registration, financial disclosure, governance, contact details, and data recency. It does not measure programme impact. See exactly what we do and do not have →
Financials
Charity Commission (UK)Leadership at a glance
Official filingsSimilar charities
GiveRadar Intelligence
GiveRadar Analysis
Based on the records currently verified by GiveRadar, The International Institute for Strategic Studies has a substantially complete profile, cross-referenced across 4 independent sources including the Charity Commission.
- Established in 1962, it is among the oldest international charities in the United Kingdom GiveRadar tracks. View this cohort
- By reported annual revenue, it is larger than 98% of the 2,126 international charities in the United Kingdom with financial records on GiveRadar. See the filings
- GiveRadar's profile for The International Institute for Strategic Studies draws on its financial disclosures and its registration, in line with the typical international charities in the United Kingdom it tracks. View this cohort
- government registration
- financial records (5 filed years)
- disclosed leadership
- a website
- a contact email
Analysis based on GiveRadar's benchmark dataset of 2026-07-03. It describes what GiveRadar has verified, not a judgment of the organization itself.
Filing history
5 years on file from Charity Commission (UK): revenue, expenses, program spending, assets, and liabilities by fiscal year.
See 5 years of revenue, expense breakdowns, and balance sheet.
Sign up to viewTax deductibility
Whether a gift to The International Institute for Strategic Studies lowers your own taxes depends on where you pay them. Choose your country to see the rule that applies.
UK donations qualify for Gift Aid. THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES is registered with the Charity Commission. Eligible UK taxpayers can boost their gift by 25% at no extra cost.
THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES is in United Kingdom, a TGE (Transnational Giving Europe) member country. Dutch donors can route gifts via Stichting Transnational Giving Europe to receive Dutch ANBI-equivalent deductibility, subject to TGE's 5% pass-through fee.
THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES is registered in United Kingdom. US donors generally cannot deduct gifts to non-US charities directly. To claim a deduction, route the gift through a US 'Friends of' fiscal sponsor or a donor-advised fund that performs equivalency determination (IRS Rev. Proc. 92-94).
This is general guidance, not tax advice. Confirm treatment with the charity or your tax advisor before donating.
Leadership & board
Official filingsBoard members and senior officers on record, with disclosed pay where available.
12 officers and trustees on file, free with a GiveRadar account.
No red flags detected
Timeline
From official filingsKey dates from this charity's official filings, newest first.
In the news
No recent news coverage found
News coverage will appear here when articles mention this organization.
How it stacks up against peers
Compared with 8 similar international charities in United Kingdom.
Cause areas in United Kingdom
Charities working in each area, this charity's highlighted.
Sources and verification
- Officers and trustees
- Charity Commission for England and Wales - Register of Charities · 12 disclosed in the public registry.
What we know and don't know
Every data point we track for this charity, and whether we have found it. Disclosure only, never a judgment of the charity's work.
Data freshness
How current this profile is, and when we last checked it against the official source.
Methodology
GiveRadar builds each profile primarily from official government charity registries, supplemented where available by third-party nonprofit databases and news archives, and combines it into a single 0-100 integrity assessment. The exact sources for this charity are listed above. We don't take a cut of any donation, ever.
Read full methodologyIf you represent this organization and want to correct or update its data, you can claim this listing to edit details yourself, or email info@giveradar.com with the correct information. We review every request and respond within 30 days.
Frequently asked questions about The International Institute for Strategic Studies
The International Institute for Strategic Studies is a registered international nonprofit based in London, England, United Kingdom. It is registered with the Charity Commission for England and Wales. It was founded in 1962 and has been operating for 64 years. Its registration number is 206504. GiveRadar's Integrity Assessment for the organization is 76/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports £32M in annual revenue. 12 officers and directors are publicly disclosed. No red flags have been detected.
Based on official filings, The International Institute for Strategic Studies has £32M in annual revenue. It allocates 97% of expenses to programs and services. This is above the average of 90% for international charities in United Kingdom. Its revenue is significantly above the peer average of £1M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.
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. The International Institute for Strategic Studies is classified as an international organization registered in United Kingdom. The organization was founded in 1962.
The International Institute for Strategic Studies is a charitable company limited by guarantee, the most common incorporated form for UK charities. It is registered with both Companies House and the Charity Commission, and must file annual accounts with both regulators. Directors (who are also charity trustees) have limited liability. Its Charity Commission registration number is 206504.
The International Institute for Strategic Studies's registered charity number is 206504. You can use it to look up the organization on the Charity Commission register.
The International Institute for Strategic Studies is located in London, England, United Kingdom. The organization was established in 1962 and has been active for 64 years.
The International Institute for Strategic Studies is based in London in England. The Charity Commission for England and Wales (CCEW) is the primary regulator. Scotland has its own regulator (OSCR), and Northern Ireland has the Charity Commission for Northern Ireland (CCNI). A charity registered with the CCEW may operate across the whole of the UK or internationally.
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Quick facts about The International Institute for Strategic Studies
- What is The International Institute for Strategic Studies?
- The International Institute for Strategic Studies is a international charitable company based in London, United Kingdom. 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.
- When was The International Institute for Strategic Studies founded?
- The International Institute for Strategic Studies was founded in 1962.
- Where is The International Institute for Strategic Studies located?
- Headquartered in London, England, United Kingdom.
- What is The International Institute for Strategic Studies's annual budget?
- Annual revenue for fiscal year 2024 is £31.6 million. 97% of expenses go to program services.
- Is The International Institute for Strategic Studies trustworthy?
- The International Institute for Strategic Studies has a GiveRadar Integrity Assessment of 76 out of 100 (Strong transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
- What is The International Institute for Strategic Studies's registration number?
- Registration: 206504 (United Kingdom).
- What is The International Institute for Strategic Studies's website?
- https://www.iiss.org
- Are donations to The International Institute for Strategic Studies tax-deductible?
- Donations may be tax-deductible for residents of United Kingdom under local rules. US donors should check whether the charity has an equivalency-determination letter or a US-based fiscal sponsor before claiming a deduction.