International security firm. With offices in more than 20 countries and over 40,000 employees worldwide Global is on of the world's largest private providers of security services. Serving a variety of public and private clients, they offer investigative services, uniformed and plain-clothes guards, alarm systems, threat analysis, crisis management and corporate security risk assessment. They recently made headlines when the Australian government chose Global to handle security at the 2000 summer games in Sydney.
Global Security was founded in the United States in the late 19th century as the McMasters Detective Agency. In the battles between managements and organized labor in the early 1900's McMasters men were well known for infiltrating unions and disrupting their plans and actions. The company changed its name to Global in 1967 as part of their expansion into the company's reputation as an enemy of organized labor has persisted, making its target for terrorist attacks in Europe in the 1970's.