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Monday, May 18, 2026

Allied Universal Buys American Security to Expand in Southeastern U.S.

Santa Ana-based Allied Universal, the world’s biggest private security firm, said it’s acquired American Security to expand in the southeastern U.S.

Founded in 1975 by retired South Carolina Highway Patrol Sergeant Henry Harrison, American Security has more than 1,200 employees and serves a seven-state area that includes Alabama, Georgia, Kentucky, North Carolina, South Carolina, Tennessee and Virginia.

“American Security will complement the services we currently provide and give Allied Universal a stronger presence in the Southeast part of the United States,” said Steve Jones, Global Chairman & CEO of Allied Universal.

Allied Universal has more than 800,000 employees and is generating a run rate of $20 billion.

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Peter J. Brennan
Peter J. Brennan
With four decades of experience in journalism, Peter J. Brennan has built a career that spans diverse news topics and global coverage. From reporting on wars, narcotics trafficking, and natural disasters to analyzing business and financial markets, Peter’s work reflects a commitment to impactful storytelling. Peter’s association with the Orange County Business Journal began in 1997, where he worked until 2000 before moving to Bloomberg News. During his 15 years at Bloomberg, his reporting often influenced financial markets, with headlines and articles moving the market caps of major companies by hundreds of millions of dollars. In 2017, Peter returned to the Orange County Business Journal as Financial Editor, bringing his heavy business industry expertise. Over the years, he advanced to Executive Editor and, in 2024, was named Editor-in-Chief. Peter’s work has been featured in prestigious publications such as The New York Times and The Washington Post, and he has appeared on CNN, CBC, BBC, and Bloomberg TV. A Kiplinger Fellowship recipient at The Ohio State University, he leads the Business Journal with a dedication to uncovering stories that matter and shaping the local business community and beyond.

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