Battle of Ideas
It commenced in 2005  and is an annual two-day debating event held in London. It claims it "makes virtues of free-thinking and lively exchanges of views" and "fosters an atmosphere of intellectual freedom and open-ended exploration of new ideas, research and social trends". In practice, all of the sessions' chairs, around half of the speakers and most of those selected by the chair to contribute from the floor are LM associates. In response to the question, "Is the Institute of Ideas committed to promoting debate or to promoting one side of a debate?", Claire Fox replied "We are committed to debating in general, but make it perfectly clear that we have a position in the debates we organise."  Accounts by attendees are here. 
| LM network resources
- The British Pregnancy Advisory Service, whose current Chief Executive is long time LM associate Ann Furedi sponsored the Battle of Ideas in 2008, 2009 and 2011.
- cScape, whose current Chief Executive is long time LM associate Rob Killick and who employed another LM associate Nathalie Rothschild as Public Relations Officer sponsored the Battle of Ideas in 2005, 2006, 2007, 2008 and 2009.
- Sovereignty And Its Discontents, whose co-convenor is long time LM associate Philip Cunliffe sponsored the Battle of ideas in 2005, 2006, 2007, 2008 and 2009.
Other multi-year sponsors, other LM network entities excluded, are:
- Art & Business 2005, 2006 and 2008
- BT 2006, 2007, 2008
- Economic and Social Research Council 2007, 2008, 2009, 2010
- General Teaching Council 2005, 2006, 2008
- Jaguar Landrover 2010, 2011
- Pfizer 2005, 2006
- PriceWaterhouseCoopers 2009, 2010, 2011
- SAB Miller 2008, 2009, 2010, 2011
- Shell 2009, 2010, 2011
- The Times 2008, 2009, 2010
- Wellcome Trust 2008, 2009, 2010, 2011
During the four years 2007/8 to 2010/11, the Battle of Ideas and its partner organisation, Debating Matters, received £330,000 of public funds from the Economic and Science Research Council, the Engineering and Physical Sciences Research Council and the Medical Research Council.
BT | Pfizer | Economic and Social Research Council | Royal College of Art | Science champion Science and Technology Facilities Council | Education champion General Teaching Council for England | Design & architecture champion BDP | Arts champion Arts & Business | Film & animation champion Tiscali
18 Doughty Street | Academics For Academic Freedom | Bishopsgate Institute | Blueprint | Body & Soul | Boisdale & La Bodeguita del Medio | Brighton Salon | British Council India | Centre for African Policy and Peace Strategy | Continuum | cScape | Culture Wars | Design Museum | engaging cogs | ESRC Britain Today | ESRC Genomics Network | European Dana Alliance for the Brain | FORA.tv | Friction.tv | Future Cities Project | Grange Hotels | Institute of Ideas & Pfizer Debating Matters Competition | IoI Book Club | IoI Education Forum | IoI Parents Forum | IoI Postgraduate Forum | IoI Science & Health Forum | ISM Music Journal | London Knowledge Lab | Manifesto Club | Novo magazine | NY Salon | Reading Agency | Royal Academy of Dance | Royal College of Art Animation Department | Royal College of Art Students' Union | Royal College of Music | Social Affairs Unit | Society for the Promotion of New Music | Sovereignty and Its Discontents | Spiked | WORLDwrite 
- Headline partners: PWC | Shell | SABMiller | Royal College of Art | The Times
- Festival champions: British Pregnancy Advisory Service | British Council | Jaguar | Land Rover Wellcome Trust
- Debate partners:British Humanist Association | Brook | Catholics for Choice | DrFoster Intelligence | Economic and Social Research Council ENO | Helen Hamlyn Centre for Design | Hotwire | Medical Research Council | National Institute for Health and Clinical Excellence | Royal Academy of Engineering | RCM London | Royal Philharmonic Society
- International partners:British Council | CMCS | CEU | Cultiwigest | European Cultural Parliament | Folkoperan | Kino Tilsiter Lichtspiele | Landmark | Museum für Moderne Kunst | Novo | NY Salon | The New School | Tidskriften Opera | Vibe
- Venue partners: Belfast Exposed | Blackwell | Foyles Freeword | Grange Hotels | Imperial College London | Royal College of Art Students Union | Royal Society of Medicine
- Specialist media partners: Eureka | The Independent | Prospect | Spiked | Time Out | The Times Higher | Woldbytes
- Salon partners: Birmingham Salon | East Midlands Salon | Leeds Salon | Belfast Salon | Brighton Salon | Manchester Salon
- Additional supporters: Big Potatoes | Flying Matters | Future Cities Project | Manchester Science Festival | Manifesto Club | Mantownhuman | Sheffield Documentary Festival | Standing Committee for the Education and Training of Teachers | The Institution of Engineering and Technology | Young Journalists' Academy
In March 2011, the Wellcome Trust made a 'Strategic Award' of £875,000 over five years to support "debates about developments in biomedicine"; specifically the Battle of Ideas and Debating Matters. 
Battle of Ideas speakers for the 2010 conference, as listed on the website in April 2011, were:
- Beccy Allen, researcher, Hansard Society; project manager, HeadsUp, an online forum for 11-18’s, politicians and policy-makers.
- Dave Clements, social policy writer; convenor, IoI Social Policy Forum; co-editor, The Future of Community.
- Joel Cohen, politics student, SOAS; member, Battle of Ideas Committee
- Dolan Cummings, convenor, Battle for Politics; associate fellow, Institute of Ideas; editor, Culture Wars.
- Nick Dusic, director, Campaign for Science and Engineering (CaSE)
- Tim Finch, director and head of migration, equalities and citizenship, IPPR
- Claire Fox, director, Institute of Ideas; panellist, BBC Radio 4's Moral Maze
- Frank Furedi, professor of sociology, University of Kent, Canterbury; author, Wasted, Politics of Fear, Where Have All the Intellectuals Gone?
- Pam Giddy, director, Power 2010; co-founder and former director, Power Inquiry
- Tony Gilland, science and society director, Institute of Ideas; director,Debating Matters Competition
- Norman Ginsburg, professor of Social Policy, London Metropolitan University; author, Divisions of Welfare: A Critical Introduction to Comparative Social Policy
- David Goodhart, founder and editor, Prospect magazine
- David Green, director, Civitas; author, Individualists Who Co-operate: Education and welfare reform befitting a free people
- Shane Greer, executive editor, Total Politics; political consultant and commentator
- Matt Grist, director, RSA's Social Brain project; author, Changing the Subject - how new ways of thinking about human behaviour might change politics, policy and practice
- Kamaljeet Jandu, national officer, Equality through Inclusion, GMB
- Geoff Kidder, director, membership and events, Institute of Ideas; convenor, IoI Book Club; IoI’s resident expert in all sporting matters
- George Lee, prospective parliamentary candidate, Conservative, Holborn & St Pancras; founding member, Black Police Association
- Kirk Leech, freelance journalist; researcher, development and environment
- Kevin Maguire, associate editor, Daily Mirror
- Brendan O'Neill, editor, Spiked; author, Can I Recycle My Granny and 39 Other Eco-Dilemmas
- Ben Page, chief executive, Ipsos MORI]; Editorial Board, International Journal of Market Research
- James Panton, politics tutor at St John’s College, University of Oxford; co-founder, radical civil liberties campaigning group, the Manifesto Club
- Jo Phillips, journalist, former spin doctor; co-author Why Vote – a guide for those who can't be bothered.
- Mike Savage, professor of sociology, University of Manchester; Director, ESRC Centre for Research on Socio-Cultural Change; author, Culture, Class, Distinction
- David Seymour, co-author Why Vote – a guide for those who can't be bothered; former political editor, Mirror Group, leader writer, Daily Mail; founder, Student Mirror
- Gerry Stoker, professor, Politics and Governance, University of Southampton; director, Centre for Citizenship, Globalization and Governance; author, Why Politics Matters: making democracy work
- Wes Streeting, president, National Union of Students (NUS)
- Peter Tatchell, human rights campaigner; Green Party human rights spokesperson
- Robin Walsh, editorial assistant, medical publishing company; co-founder, Current Affairs Forum.
- Bruno Waterfield, Brussels correspondent, Daily Telegraph; author, No Means No!
- Jeremy Webb, editor-in-chief, New Scientist
- Richard Wilson, founder and director, Izwe; founder, leading public engagement think-tank, Involve
- Jon Alexander, Beware the Institute of Ideas Conservation-Economy, 1 Nov 2010
- Jenny Turner, 'Who Are They?,' London Review of Books, 8 July 2010
- Helge Ogrim, Battle of Ideas, Is the Revolutionary Communist Party still the vanguard? November 6, 2010 · 11:49 am
- Press Gazette, The Battle of Ideas: It's a twisted old battlefield Press Gazette, 3 November 2006
- Richard Wilson, 'Quite contrary:inside the Battle of Ideas', New Humanist, Jan/Feb 2011
- Culture Wars History, Culture Wars website, accessed 31 Oct 2010
- About: What is the Battle of Ideas 2010?, Battle of Ideas website, accessed 28 Apr 2010
- Hope for the Best - Interview with Claire Fox, website Spannermedia.com
- Who Are They, London Review of Books website, accessed 14 Nov 2010
- Beware the Institute of Ideas Conservation-Economy, 1 Nov 2010
- Battle of Ideas, Is the Revolutionary Communist Party still the vanguard? November 6, 2010 · 11:49 am
- "2005 Partners", Battle of Ideas website, accessed 7 June 2010
- "2006 Partners", Battle of Ideas website, accessed 7 June 2010
- "Partners Listing", Battle of Ideas, 2007, retrieved from the Internet Archive of 11 October 2007, accessed 7 June 2010
- "Partners", Battle of Ideas website, accessed 7 June 2010
- "Partners", Battle of Ideas website, accessed 7 June 2010
- "", Battle of Ideas website, accessed 26 October 2010
- "", Battle of Ideas website, accessed 3 September 2011
- Strategic Award supports The Battle of Ideas festival and Debating Matters Wellcome Trust website acc 5 March 2011
- Speakers Listing, Battle of Ideas website, accessed 28 Apr 2011