G4S is the world's leading global, integrated security company specialising in the delivery of security and related services to customers across six continents. The group is active in more than 90 countries, and is the largest employer quoted on the London Stock Exchange with around 570,000 employees and the company has a secondary stock exchange listing in Copenhagen. G4S works to safeguard the welfare and prosperity of millions of people worldwide – helping to create safer and better environments in which people live and work.