Quiller Consultants is a PR and lobbying firm. It is part of the Huntsworth Group, which is owned by Tory peer and David Cameron’s constituency chairman Lord Chadlington.
"Years of inside experience"
According to Quiller's website:
"The Quiller team is drawn from across the political spectrum and has many years of inside experience of Whitehall and Westminster at the most senior level, including Downing Street and the Treasury. This gives us a very broad range of contacts with politicians, civil servants and regulators. We also know how the system really works and how our clients can make their case most effectively. Sometimes this is best done behind the scenes. At other times, the situation will call for a high-profile campaign, where we help clients influence opinion through the media as well as in Parliament."
Quiller offers reputation management, financial and corporate communications, public affairs advice, campaigning expertise, litigation communications and crisis and issues management.
- Stephen Parkinson - Ex-Conservative Party aide who was part of the small team that used to prepare David Cameron for Prime Minister’s Questions when he was leader of the Opposition. Before that was Director of Research at the Centre for Policy Studies, the free market think-thank. Was also a Conservative candidate for Newcastle upon Tyne North at the 2010 general election, and subsequently National Organiser of the cross-party NO to AV campaign for the referendum in May 2011.
- John Eisenhammer
- Malcolm Morton - ex-parliamentary aide to David Rutley MP, assisting on the Treasury Select Committee, and latterly in his capacity as Parliamentary Private Secretary to Damian Green MP, the Minister of State for Immigration in the Home Office. Before the 2010 General Election, Malcolm served as policy researcher to Mark Harper MP in his role as Shadow Work and Pensions Minister. In 2012-13 Harper was in charge of regulating lobbyists with the introduction of a statutory register of lobbyists.
- Michael Smyth - Senior adviser at Quiller. A former partner at legal firm Clifford Chance and the firm’s Global Head of Public Policy and Government Relations for a decade. His extensive legal experience has included running public inquiries in the UK (including the Hutton Inquiry (2004) and Deepcut Review (2006) and abroad (including in Gibraltar and the Cayman Islands) 
- Alasdair Murray
- Howell James, Left his role as head of corporate communications at Christie’s to become chief executive of Quiller.
Members of Quiller according to APPC Register for 1st March 2014 - 31st May 2014: 
Former management and staff
- George Bridges, left Quiller to become to become senior adviser to the chief of the UK operation of Spanish banking giant Santander in January 2014.  In 2006 Bridges was Campaign Director for the Conservative Party, and was responsible for the Party’s media, political and campaign teams. Before that, he was Chairman of the Conservative Research Department, helping to shape and implement the Party’s political strategy
- Peter Barnes: "helps clients to engage effectively with the UK Government, Parliament and competition authorities. He has a particular specialization in healthcare, financial services, energy and gambling policy." He spent almost a decade at senior levels in two government departments: at HM Treasury he was private secretary (chief of staff) to the Minister responsible for Government policy on tax and financial services. Then as Special Adviser to the Secretary of State for Social Security, he helped to legislate major reforms of welfare and pensions.
- Sean Worth: Brought in as Bridges' replacement however a year into the role he resigned in July 2014 to set up his own organisation, The Westminster Policy Institute. 
- Peter Wilson-Smith: Announced he was leaving Quiller in July, a week after Worth, but has declared he will not be joining Worth's The Westminster Policy Institute.  Is now Director at Meritus Consultants.
Quiller lists its clients as including multinational companies, financial institutions, public sector bodies, foreign governments, membership and campaigning organisations, professional services firms, schools and universities, charities, family offices, and individuals.
Clients of Quiller according to APPC Register for 1st March 2014 - 31st May 2014: 
Circle Holdings Plc | Grosvenor | HSBC Bank plc | Kingfisher plc | Ministry of Foreign Affairs, UAE | SWIFT | Syrian Opposition Coalition | Telefonica O2 UK Limited | The British Land Company PLC | The Business Services Association | The City of London Corporation | The Co-operative Group | United Kingdom-United Arab Emirates All-Party Parliamentary Group - Ministry of Foreign Affairs, UAE | URS Infrastructure & Environment UK
Lobbying clients according to the Association of Professional Political Consultants's register as of December 2011:Brewin Dolphin | Experian | Financial Reporting Council | HSBC | Iggesund Paperboard | LGC | Maximus UK | Migrationwatch UK | Ministry of Foreign Affairs, UAE | Mitie Group | Pinnacle Regeneration Group | PwC | Reaction Engines | Telefónica O2 UK | Tesco | The Actuarial Profession | British Land | Business Services Association | Capita | City of London Corporation | Game & Wildlife Conservation Trust | Transport Sense | Tullett Prebon
Lobbying clients in the quarter to May 2011.
Brewin Dolphin Limited, Experian Limited, Financial Reporting Council, HG Capital, HSBC Bank Plc, JustGiving, LGC,Migrationwatch UK, Ministry of Foreign Affairs, UAE, Mitie Group Plc, PwC, Reaction Engines Limited, Telefónica O2 UK,The Actuarial Profession, The British Land Company PLC, Business Services Association, Capita Group Plc, City of London Corporation, Game & Wildlife Conservation Trust,Transport Sense, Tullett Prebon Plc
United Kingdom-United Arab Emirates All-Party Parliamentary Group - 'Quiller Consultants provide secretariat services to the group on behalf of the Embassy of the United Arab Emirates. 
2011 APPC Register
Quiller joined the APPC in May 2010, listing its clients (June-August 2010) as: Bank of America, Brewin Dolphin Limited, Citadel Investment Group, Experian Limited, HG Capital, HSBC Bank Plc, Reaction Engines Limited, Telefónica O2 UK Limited, Tesco Plc, Business Service Association, Capita Group Plc, City of London Corporation, Game & Wildlife Conservation Trust, Sir Keith Park Memorial Campaign, Tullett Prebon Plc, Ministry of Foreign Affairs, UAE
Prior to May 2010, Quiller failed to reveal its client list. However, other reports suggest that it advised these organisations:
Quiller Consultants 11-12 Buckingham Gate London SW1E 6LB
Tel: +44 (0)20 7233 9444 Fax: +44 (0)20 7233 657
- Quiller Consultants website, accessed Nov 2008
- Stephen Parkinson, Quiller Consultants' website, accessed 19 October 2011
- Our People, Quiller Consultants, accessed Jan 2012
- Quiller Consultants, Our People: Michael Smyth CBE, undated, website accessed 14 October 2011
- Howell James to head Quiller Accessed 9/9/14
- APPC Register for 1st March 2014 - 31st May 2014, accessed September 2014
- John Owens, Quiller's George Bridges quits to advise Santander CEO Ana Botín, PRWeek,8 November 08, 2013, acc 9 September 2014
- Quiller Consultants website, accessed Nov 2008
- Quiller Consultants website, Quiller website, accessed Nov 2008
- Sean Worth leaves Quiller Accessed 9/9/14
- Peter Wilson-Smith to leave Quiller Accessed 9/9/14
- Quiller consultants Our clients, accessed 29 January 2009
- APPC Register, accessed December 2011
- [1 March - 31 May 2011]
- Register of ALL-PARTY GROUPS October 2010, and 28 October 2011
- APPC register, 1 June- 31 August 2010
- Private-equity body BVCA appoints comms director, Public Affairs News, May 2008