Reliance is an established market leader in the provision of manpower and electronic security solutions, facilities management and business process outsourcing. We employ over 12,000 people from a network of offices throughout the United Kingdom. Areas serviced: Central Londonwww.reliancesecurity.co.ukLondon St/2-4 Old Pye St, SW1P 2LE

Retainagroup offers a unique security system providing vehicle, personal and corporate property protection and asset management facilities. The system is based upon three simple but highly effective procedures ?– Marking, Registration and Verification. Items of value ?– vehicles, computers, mobile phones, MP3 players, bicycles, Home Cinema systems, power tools in fact any personal property that could be lost or stolen ?– are permanently and visibly marked with an unique security code Areas serviced: Central Londonwww.retainagroup.co.uk134-136 Buckingham Palace Rd, SW1W 9SA

Focus Security Services understands the customer needs within the security services industry. Our expertise and experience demonstrates our ability to provide a cost-effective, professionally managed, quality service. Customer care is our priority and we believe is in the best interests of our customers. Honesty and integrity are qualities that we demand from all of our employees. The benefit of this practice is gained by the customer, in every aspect of the service provision. Areas serviced: Central Londonwww.focussec.co.uk8-10 Grosvenor Gdns, SW1W 0DH

Universe Security Group is an international security consultancy and security services provider. USG provides total security solutions worldwide to a wide range of clients. Our consultants are all former members of the world's elite intelligence units, military forces and security organisations, with vast knowledge and practical experience. Areas serviced: Central Londonwww.universesecurity.co.uk8-10 Grosvenor Gdns, SW1W 0DH