About Us

AN EMERGING CRISIS

The security threat throughout the world is changing almost daily with many Western countries continuing to be on high alert in the wake of international terrorism and cyber-attacks.

It is estimated that cyber-attacks worldwide cost companies and governments over 13 billion pounds in 2017 alone. The unprecedented wave of terrorist attacks in the UK, Europe, the USA and the Middle East have caused a complete change in the security strategies of many governments, business organisations and high net worth individual.

The international SIS Management Team have security experience in many countries throughout the world including recent conflicts in Iraq, Afghanistan, Syria, Africa South America and many other countries where terrorism and organised crime continues to rise. The unique knowledge and experience of SIS in these areas and the threats posed make us the ideal partner for all your security needs.

£13 Billion

The cost of Cyber-attacks worldwide to companies and governments

SECURITY AND INTELLIGENCE SERVICES MANAGEMENT TEAM

Leslie (Les) Graham Leek

Managing Director and Chief Executive Officer

Les has worked extensively in the private sector at CEO and Director Level and travelled throughout the world as a Security Consultant. He has an extensive proven capability in negotiating at the very highest level in business, commerce, government, military and law enforcement. 

During a 30-year distinguished police career Les served throughout mainland Great Britain, Northern Ireland and on overseas enquiries and operations. Mainly active in Criminal Investigation Department (CID), National and Regional Crime Squads (now SOCA), Counter Terrorist Intelligence, and Surveillance roles during his service,

Les was one of the most highly commended and decorated officers in the police service for outstanding investigative and operational skills. 

Since retiring from the Police Service, he has been deployed on a number of operational and training commitments throughout the world as a private security consultant on behalf on government agencies, organisations and leading blue-chip companies. He is a member of the International Association of Chiefs of Police and an Advisor to a USA based International conflict advisory group.

David Gilyeat

Director of Intelligence Operations

David Gilyeat is a former Intelligence Corps Warrant Officer in the British Army who served three tours of Afghanistan as a Case Officer and Operations Officer with the Defence HUMINT Unit. During this time he completed a twelve month secondment with the British Secret Intelligence Service as a Liaison Officer to the National Directorate of Security.

Since leaving the British Military David has carried out a number of projects on behalf of the the UK Foreign and Commonwealth Office, other Governments’ Security Services throughout the world together with private clients.

He is an internationally acknowledged expert in intelligence operations, operating in challenging locations, and has designed and delivered training packages on behalf of the UK, USA and other governments' military intelligence strategies.

David has recently returned from a 18 month operational tour of Afghanistan on behalf of the US Army (DOD) as a Trainer and Mentor for the Afghan Army

In addition to his Hostile Environment Awareness Training programme, David, with his vast experience in operating in challenging areas of the world, has designed and developed a unique training course which focuses on Hostage Survival and Escape. This programme is ideally suited to international charities, diplomatic missions and businesses operating in West Africa, Afghanistan, Central and South America, and other conflict or very high crime areas of the world where the likelihood of hostage taking is prevalent.

Please see PowerPoint attached.

Sekonaia "Tak" Takavesi DCM (Distinguished Conduct Medal)

Special Projects Director

Tak spent 23 year in UK Special Forces (22 SAS) and is a legend within the unit’s history. Once described as ‘the SAS’s SAS man’ Tak was honoured with the Distinguished Conduct Medal for his work whilst operating with the SAS and was directly involved in the Battle of Mirbat  the Iranian Embassy Siege, and many other international deployments.

Since retiring from the SAS Tak, who is multi-lingual in five languages, has been employed within the private security sector for over 25 years. Tak has completed tasks on behalf of Foreign and Commonwealth Office and the Ministry of Defence on training Special Forces and government protection teams globally.

As a private military advisor Tak has advised governments and military clients on security matters including anti-piracy and counter terror operations throughout the world.

Allen Xie

Operations and Sales Director-China

Located in Guangzhou and Shenzhen, which is known as the heart of excellence in electronics design, quality and production, Allen is an electronic university graduate who specialises is the creation of specialist security products.

One of a group of young entrepreneurs and professionals who have revolutionised the design, quality and sales of hi-tech, world beating, electronic security products and systems emanating China.  

 Heading up SIS far east capability, Allen’s professional background and experience ensures he is well placed to provide complete satisfaction to all our clients.

SIS China can arrange for all your travel needs including ATOL flights, Hotels, Interpreters, Legal Services Chauffeur driven cars, airport pick-ups in Guangzhou and Hong Kong. We also arrange accreditation for Spring and Autumn Fairs.