David Burrill is a member of private security consultants Burrill Green. Burrill has been a professional international Intelligence and Security operator/manager for most of his professional life. On retiring from the military in 1992, having held the appointment of Deputy Director Intelligence Corps, and Chief of Staff Intelligence and Security Centre of the UK Armed Forces, he joined British American Tobacco as Head of Security. He is a Freeman of the City of London and has had close and regular contact with the private security sector for over twenty-five years.
A graduate of the Royal Military Academy Sandhurst, the Army Command and Staff Course and the Open University, Burrill has been a Defence Fellow of London University and is a Fellow of three British professional institutes: the Chartered Management Institute, the Chartered Institute of Personnel Development, and the Security Institute. A member of the International Security Management Association, he was its President (1998-99) (the first non North American to hold the position). He sits on the Stakeholder Advisory Board of the UK Security Industry Authority and on the Advisory Board of the Switzerland/Germany based, International Security Tuition Association.
In 2003, Burrill became the first co-Chairman and was instrumental in the setting up of SISBO, the UK Foreign and Commonwealth Office's Security Information Service for Business Overseas — a public/private sector partnership initiative — and served as SISBO's first private sector chair. Burrill was also the first non-American private sector director of OSAC, the US State Department's Overseas Security Advisory Centre.
In April 2005, Burrill was honoured by CSO journal, with a Compass award for visionary leadership, and by ASIS International as the first recipient of its European Leadership Award.  He was awarded an OBE in the 2004 New Year's Honours List for services to international security management.
Burrill has played important roles in networks such as RSMF and Selwyn House (another 'grouping of the UK's key corporate security players'), and also works with Foreign Policy Centre and Demos.  Recently, he has been appointed as the Deputy Colonel Commandant of the British Army’s Intelligence Corps; an honorary appointment with responsibilities for welfare and ‘esprit de Corps’ matters for serving and retired members.
He spoke with Peter de la Billiere to a meeting of the Regional Boards of Philip Morris, European Round Table Working Group and has represented ERT's security interests, including engagements in EU public and private sector partnership initiatives to counter "terrorism" and crime.  He spoke at a CBI conference in Birmingham in November, 2004, with Eliza Manningham-Buller, director-general of MI5 and Dame Pauline Neville-Jones, chairman of defence and security experts Qinetiq.  Also featured was Stephanie Daman who is a fellow member of the Risk and Security Management Forum (RSMF). 
- 'Burrill Green approach to security', Burrill Green website, accessed 29 April, 2009.
- 'Events - Corporate Security: Past, present and future', Demos website, 18 January, 2006.
- 'UK-BASED DAVID BURRILL JOINS PICA CORPORATION’S BOARD OF DIRECTORS', PICA website, 15 October, 2007. (Accessed 29 April, 2009)
- 'What Satisfied Customers Say', Burrill Green website, accessed 29 April, 2009.
- Bill Wilson, 'Businesses face security threats', BBC website, 9 November, 2004.
- 'It's all about security: Security experts take to the podium in Birmingham', BCS website, 8 February, 2006.