Security Intelligence Technology Group provides reliable, quality security, surveillance and counter-surveillance tools, consulting and training to law enforcement & intelligence agencies, corporate professionals and private individuals responsible for protecting premises, assets, information, executives and family. Areas serviced: Central Londonwww.spyzone.com62 South Audley St, W1K 2QR

S.I.P. is an established professional company in all aspects of Investigation, Intelligence, Counter-Intelligence and Security whose clients range from the Private Individual through to major Corporations and Governments. Although based in the United Kingdom we operate on an International basis with extensive information sources throughout Europe, USA, South America, Middle East, Asia, Africa and the Eastern Block. Areas serviced: Central Londonwww.sip-international.co.ukGrosvenor Sq/10 Carlos Pl, W1K 3AU

Scanna MSC is one of the world's leading manufacturers and suppliers of specialist screening equipment for letterbomb, contraband and explosives detection. We are based in London (UK) and Florida (USA) with manufacturing facilities in Wiltshire, UK and Connecticut, USA. Comprehensive X-ray Maintenance Support Contracts available to protect your equipment in both the UK and the USA. Areas serviced: Central Londonwww.scanna-msc.com179 Piccadilly, W1J 9EN

Research Associates is a full service agency (incorporating PH Investigations) established 1977. Initially, the company was set up to specialise in locating persons and researching individual's backgrounds. During the 1980 s and 1990's we extended our specialisation to include matrimonial and surveillance services, and also offer all investigation requirements to a high degree of integrity. We are highly professional with a proven track record in the UK and world-wide. Areas serviced: Central Londonwww.investigationservices.co.uk53 Maddox St, W1S 2PN

Brigade Security Consultants Ltd. was formed in 1998 by a group of experienced independent security specialists, who have trained and gained their experience from service within the Armed forces, Police and Civilian security sector. Security specialists such as Close Protection and Executive Protection officers are often referred to as "Bodyguards" but the modern day Close Protection officer needs to be more than just the old fashioned "Bodyguard". Areas serviced: Central Londonwww.brigadesecurity.com2 Lansdowne Row, W1J 6HL

IRC is committed to excellence in the field of security and investigations. This can only be achieved by working with our clients and constant striving to do our best on their behalf. This we promise to do with energy and integrity. Building trusted relationships is building our business Areas serviced: Central Londonwww.intriskuk.com2 Lansdowne Row, W1J 6HL

We offer the very best in audio and video surveillance equipment, personal tracking products, covert recording devices and counter surveillance tools. Each product type has been carefully selected to be the finest of its kind and therefore, we do not offer a bewildering range of options. Whatever your reason for needing equipment, you can rest assured we never compromise on quality. Areas serviced: Central Londonwww.lorraine.co.uk59 South Audley St, W1K 2QN

Peregrine International was established to provide pro-active, high calibre, security and business investigation solutions. Not only do we ensure the safety and security of your personnel, property and assets, we can also contribute to reducing your normal running costs and overheads, as well as many other advantages to your business. Areas serviced: Central Londonwww.peregrine-international.com1 Berkeley St, W1J 8DJ

We have recruited many former police colleagues and specialist military personnel into the company, enabling us to offer a wide range of services. All our staff are specially selected for the individual roles they carried out in their careers. The training they received is without doubt, the most demanding and thorough of any organisation involved within the security industry, and their expertise has been tested at the highest level. The services we provide are many and varied, and our daily activity is centred the needs of top management and directors of multi national companies with fu references available. Areas serviced: Central Londonwww.securitydrivers.com211 Piccadilly, W1J 9HF

Titon International Ltd is an independent Business Intelligence Company providing a wide range of bespoke security and intelligence services to the commercial world both in the UK and Overseas. All Titon services are necessarily discreet and precisely tailored to the client?’s requirement - client confidentiality is of paramount importance to us and is always guaranteed. Titon is conveniently based in Mayfair, central London. Areas serviced: Central Londonwww.titoninternational.com25 Grosvenor St, W1K 4QN