The International Churchill Society

RUSI and the International Churchill Society (ICS) have established a fruitful partnership benefitting the members of both organisations.

ICS members have the opportunity to attend events hosted at RUSI’s headquarters building at 61 Whitehall in the coming years, while members of both organisations will be invited to a variety of meetings, conferences and other engaging events.

RUSI is grateful to ICS UK and ICS USA and their generous donors for supporting the Institute. In recognition of their philanthropy, the second floor of RUSI’s building has been named in honour of Sir Winston Churchill and The International Churchill Society. Read more information about the ICS and to learn more about their important work.

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National Army Museum

RUSI and the National Army Museum have developed a long-running partnership through our shared interest in military history. A large proportion of RUSI's museum collection was rehoused at the National Army Museum in 1962 when the RUSI Museum was sadly closed. In 2023 we launched the annual Siborne lecture exploring the history and culture of the Napoleonic Wars. RUSI and the National Army Museum now take it in turns to host the annual lecture to which our respective members are invited.

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Commonwealth War Graves Commission

RUSI has a long-standing relationship with the Commonwealth War Graves Commission. We were honoured to receive the donation from the CWGC of a crest stone memorial, commemorating the sacrifices of Commonwealth soldiers, that we incorporated into our reception desk as part of our refurbishment of 61 Whitehall. In commemoration of Remembrance Day we partner with the Commowealth War Graves Commission on a half day event focusing on the role of commemoration in society and participate in the wreath laying ceremony at the Cenotaph.

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Cybrsecurity Business Network

CBN is a network of cybersecurity organisations in the UK advocating for and shaping cyber policy and regulation to encourage a more secure, resilient and prosperous economy and society.

Its member-led network consists of organisations which provide services enabling greater security and resilience to the benefit of UK businesses, public bodies and individuals, enhancing their protection and ensuring national sovereignty.

Spanning innovative start-ups and scale-ups to global industry leaders, academic specialists and key sector experts, CBN serves as a platform for our members to educate and promote the value of effective cybersecurity frameworks.

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Partnerships with organisations through RUSI Membership

RUSI brings together the leaders, practitioners and experts at the heart of global security. Over 200 organisations partner with RUSI through our organisational membership offerings.

View Current Platinum Organisational Members and 1831 Circle View Current Platinum Organisational Members and 1831 Circle

Airbus Operations Ltd
Babcock International Group
BAE Systems Plc
Blackstone
Capita Shared Services Lt.
Caxton Associates LLP
Cisco
Deloitte UK
Draken Europe
HMRC (Strategic Intelligence Assessment Unit)
Home Office - Homeland Security Group.
Home Office - Immigration Enforcement
House of Commons - Defence Select Committee 
Landmarc Support Services Limited
Leonardo UK Ltd
Lockheed Martin UK
London Fire Brigade - NILO National Coordination Office
Microsoft
Ministry of Defence - Strategy Hub
NATO Intelligence Fusion Centre
NATO Supreme Headquarters Allied Powers Europe
Northrop Grumman
Pool Re
Rokos Capital Management LLP
Saab AB
Saab UK
SAP SE
Skyral Defence
Thales UK
Tiberius Aerospace Inc
Trafigura
Wallbrook Advisory Limited

View Current Major Organisational Members View Current Major Organisational Members

Adarga Ltd
AECOM
AirTanker
Alix Parters
Amazon Web Services
Atomic Weapons Establishment
BAE Systems Digtal Intelligence
Bank of England
Bell Textron Inc.
Boeing Defence UK Ltd
BP
BT Group Plc
Buckinghamshire New University (Academic membership)
Cabinet Office - Open Source Analysis Team
DSTL Defence and Security Accelerator
DSTL Military Advisors
DXC Technology
Elbit Systems UK
ESRI (UK) Ltd
Eurofighter
Fitzroy
Fivecast
Foreign, Commonwealth & Development Office
Frazer-Nash Consultancy Ltd
Fujitsu Defence
Gecko Robotics
General Dynamics UK Limited
GKN Aerospace
Hanwha Aerospace UK
Innovation and Insight (IN2)
Joint Maritime Security Centre (JMSC)
King's College London (Academic membership)
Krull Corp
L3Harris TRL Technology
Leidos Innovations UK Ltd
Lloyds Banking Group - Chief Resilience & Security Office
Make UK Defence
MASS Consultants Ltd
Mattermost
Maxar Intelligence
MBDA UK Limited
McKinsey & Co
Mission Analysis Limited
MSI-Defence Systems Ltd
National Crime Agency
NCC Group
Netcompany 
Newton Europe
Open Society Foundations
PA Consulting Group
Palantir Technologies
PentenAmio
Planet Labs
PwC
Raytheon Systms Limited
Renaissance Strategic Advisors
Rolls Royce Plc
Royal College of Defence Studies (Academic membership)
Rowden
Second Front Systems
Shell International
Standing Joint Force Headquarters
Subsea Craft
Tadaweb
Travers Smith
TrendAI
Viasat

View Current Standard Organisational Members View Current Standard Organisational Members

4C Strategies Europe UK Ltd
Actagon
AEREA S.p.A
Anders de Wiart Associates
Army War College, Mhow
Arondite
Astraea Group Ltd
Berenberg
Bryan Cave Leighton Paisner LLP
Cabinet Office - National Security Secretariat
Callen-Lenz Associates Limited
Centimany Ltd
Chemonics Group UK Ltd
Chemring
ComandAI
CQC Limited
Darktrace
Datenna
Directorate General for Defence Policy of the Austrian MoD
Directorate of Military Intelligence, India
DNB Bank ASA London Branch
DSTL Defence and Security Accelerator
EY
Factory Internet
Federal Ministry of Defence (Germany) - Library
FN UK
Foreland Shipping Limited
House of Commons Library
Information Technology Science Center
International Committee of the Red Cross
Italian Presidency of the Council of Ministers
ITSC Library
JET Connectivity
Korea Institute for Defense Analysis
Leonardo S.p.A.
Locked N' Loaded
Malborough Communications
Met Office
Metropolitan Police
Ministry of Home Affairs of Singapore
Morgan Stanley & Co Intl plc
National Defence University of Malaysia
NHK Japan Broadcasting
Pinsent Masons
Prevail Partners
Prospect Union
Public Safety Canada - Information Centre
Radnor
Royal NLR - Netherlands Aerospace Centre
RUSI Australia
Saronic Technologies
Satellite Applications Catapult
SpyGlassTech Ltd
Supacat Ltd
Swedish Defence Materiel Administration
Synoptix Ltd
Systematic
Turner & Townsend Ltd
UK Defence Solutions Centre
Weatherbys Private Bank
William Cook Holdings Ltd

View Current Diplomatic Organisational Members View Current Diplomatic Organisational Members

Australian High Commission (Defence Section)
Brazilian Army Attache Office
Canadian High Commission (National Defence)
Canadian High Commission (Political Department)
Delegation of the European Union to the UK
Embassy of Austria
Embassy of China
Embassy of Estonia
Embassy of Finland
Embassy of France
Embassy of Hungary
Embassy of Iceland
Embassy of Ireland
Embassy of Israel
Embassy of Italy
Embassy of Japan
Embassy of Latvia
Embassy of Sweden
Embassy of the Arab Republic of Egypt
Embassy of the Czech Republic in London
Embassy of the Federal Republic of Germany
Embassy of the Kingdom of the Netherlands
Embassy of the Republic of Korea
Embassy of the Republic of Poland
Embassy of the Republic of Slovenia
Embassy of the Republic of Turkey
Embassy of Ukraine
High Commission forThe Islamic Republic of Pakistan
High Commission of India
Lambeth Palace
Ministry of Foreign Affairs of Saudi Arabia
New Zealand High Commission
Qatar Embassy
Royal Danish Embassy
Royal Norwegian Embassy
The Representation of the Faroe Islands

Please note that for security reasons not all of our members are publicly listed, notably those from the military and civil service. (Last updated 6 January 2026)