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Private Security

Allied Universal

Allied Universal: From Allied Barton to IPO

Allied Universal is one of the largest private security companies in the world. Headquartered in Santa Ana, California, the company employs more than 250,000 people in the United States and Canada. Allied Universal, or AUS, provides a wide range of security services to its clients, including access control, surveillance, and armed and unarmed guards. The …

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Allan Pinkerton and Abraham Lincoln

The Complex and Controversial History of Security Guards

Private security guards have been around for centuries, dating back to ancient times when wealthy individuals hired personal guards to protect their homes and assets. However, the modern era of private security guards can be traced back to the mid-1800s, when a group of private detectives known as the Pinkerton National Detective Agency emerged. The …

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