Think Tanks:
- Adam Smith Institute
- Anglo-German Foundation for the Study of Industrial Society
- Bow Group
- Boyd Group
- Bruges Group
- British Institute of International and Comparative Law
- Building and Social Housing Foundation
- Catalyst
- Centre for the Analysis of Social Exclusion
- Centre for Cities
- Centre for Defence and International Security Studies
- Centre for the Economics of Education
- Centre for Economic Policy Research
- Centre for Enterprise
- Centre for European Reform
- Centre for Policy Studies
- Centre for Social Justice
- Centre for Social Cohesion
- Centre for the Study of Financial Innovation
- Chatham House – The Royal Institute of International Affairs
- Civitas -Institute for the Study of Civil Society
- Commonwealth Policy Studies Unit
- The Constitution Unit
- Counterpoint (think tank)
- Compass (think tank)
- CIVITAS
- Civitatis International
- Demos
- Ekklesia
- Electoral Reform Society
- European Council on Foreign Relations
- Fabian Society
- Federal Trust
- Foreign Policy Centre
- Forum for the Future
- Global Ideas Bank
- Global Vision
- Global Warming Policy Foundation
- Globalistion Institute
- Gold Mercury International
- Green Alliance
- Hansard Society
- The Henry Jackson Society
- Involve
- Institute for Fiscal Studies
- Institute of Employment Rights A think tank for the labour movement
- Institute for Government
- Institute for Jewish Policy Research
- Institute for Public Policy Research
- Institute for Social Inventions
- Institute for Strategic Dialogue
- Institute of Advanced Study
- Institute of Economic Affairs
- Institute of Race Relations
- Institute of Welsh Affairs
- International Institute for Environment and Development
- International Institute for Strategic Studies
- International Longevity Centre – UK
- International Policy Network
- Joseph Rowntree Foundation
- Jubilee Centre
- King’s Fund
- Legatum Institute
- Local Government Information Unit
- London Councils
- Migration Watch UK
- MillionPlus – the University Think Tank
- Mutuo
- National Centre for Social Research
- National Economic Foundation
- National Institute of Economic and Social Research
- New Economics Foundation
- New Local Government Network
- New Philanthropy Capital
- New Policy Institute
- New Politics Network
- Nuffield Trust
- One World Trust
- Open Europe
- Optimum Population Trust
- Overseas Development Institute
- Oxford Research Group
- Policy Exchange
- Policy Network
- Policy Studies Institute
- Politeia
- Progress
- Quilliam (think tank)
- RAND Europe, an independent division of the RAND Corporation
- Reform
- Regulatory Policy Institute
- Relationships Foundation
- Renewable Energy Foundation
- ResPublica
- Royal Air Force Centre for Air Power Studies
- Royal United Services Institute for Defence and Security Studies
- Royal Society of Arts
- Science and Technology Policy Research
- Scotland’s Futures Forum
- Scottish Constitutional Commission
- Scottish Council Foundation
- Selsdon Group
- Smith Institute
- Social Affairs Unit
- Social Market Foundation
- Society of Conservative Lawyers
- SPRU Science and Technology Policy Research, University of Sussex
- Stockholm Network
- The Wilberforce Society
- Theos, a public theology think tank
- Tomorrow’s Company
- Unlock Democracy
- Young Fabians
- Young Foundation
- Work Foundation