International Institute for Strategic Studies

IISS
London, United Kingdom

IISS is a center for research, information, and debate on the subjects of military strategy, arms control, regional security, and conflict resolution. The objective of the institute is to promote, on a nonpartisan basis, the study, discussion, and exchange of information on the influence of modern and nuclear weapons and warfare upon the problems of strategy, defense, disarmament, and international relations. IISS is a non-partisan organisation, independent of government and other bodies.

Contact details

Website:
http://www.iiss.org/

Address:
Arundel House, 6 Temple Place, London WC2R 2PG, UK

Country:
United Kingdom

Sub-region:
Northern Europe

Areas of focus

Geographics of focus
Africa, Asia-Pacific, Europe, Middle East & the Gulf, South Asia, US
Operating languages
English

Organisation details

Business model
Non-profit
Institutional affiliations
No affiliation
Year founded
1958
Age (years)
International Institute for Strategic Studies
67 
United Kingdom average
 36
Global average
 32
Founded by
Founders:  Sir Michael Howard & Denis Healey 
Founder gender: All male
Leadership
Leader(s) (2025): Sophie Llewelyn
Leader gender: Female
Leader(s) (2024): N/A
Leader gender: N/A
Leader(s) (2023): N/A
Leader gender: N/A
Staff size
2025
International Institute for Strategic Studies
 60
United Kingdom average
 32
Global average
 88
2021
International Institute for Strategic Studies
 52
% Female staff
2025
International Institute for Strategic Studies
 45%
United Kingdom average
 48%
Global average
 50%
2020
International Institute for Strategic Studies
 54%
2019
International Institute for Strategic Studies
 46%
% Female researchers
2025
International Institute for Strategic Studies
 40%
United Kingdom average
 45%
Global average
 47%
2019
International Institute for Strategic Studies
 7%

Organisational performance

Publications
2024
International Institute for Strategic Studies
 186
United Kingdom average
 41
Global average
 58
2020
International Institute for Strategic Studies
 2
2019
International Institute for Strategic Studies
 4

Social

Likes (2023)
International Institute for Strategic Studies
 64,263
United Kingdom average
 40,795
Global average
 26,974
Likes (2022)
International Institute for Strategic Studies
 62,844
Likes (2021)
International Institute for Strategic Studies
 61,034
Followers (2025)
International Institute for Strategic Studies
 201,604
United Kingdom average
 28,677
Global average
 19,917
Followers (2024)
International Institute for Strategic Studies
 196,140
Followers (2022)
International Institute for Strategic Studies
 166,796
Subscribers (2025)
International Institute for Strategic Studies
 40,300
United Kingdom average
 11,304
Global average
 7,446
Subscribers (2024)
International Institute for Strategic Studies
 35,600
Subscribers (2023)
International Institute for Strategic Studies
 32,000
Followers (2025)
International Institute for Strategic Studies
 10,547
United Kingdom average
 2,407
Global average
 18,648
Followers (2024)
International Institute for Strategic Studies
 9,449
Followers (2023)
International Institute for Strategic Studies
 7,891
Followers (2025)
International Institute for Strategic Studies
 210,000
United Kingdom average
 15,476
Global average
 15,961
Followers (2024)
International Institute for Strategic Studies
 186,000
Followers (2022)
International Institute for Strategic Studies
 128,529

Data notes

Last updated: 10/03/2025
Rating of data accuracy (find out more) : OTT reviewed
Data sources consulted: NIRA Think Tank Directory, Organisation´s website
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