The Largest Private Security Companies in America

Terrorist attacks, shootings and assaults are becoming more and more common in today’s society. We live in uncertain times which has caused the need for increased security. Governments can only help out so much which is why stadiums, schools, airports and businesses across the nation are turning to the private security sector to protect their employees, customers, fans and loved ones. Here are the top security companies in the United States.

Allied Universal

Allied Universal Security Services

Allied Universal is one of the largest private security companies in North America and has been in business for more than 60 years. Staffed by over 150,000 employees, who are divided among 120 offices around the USA, Allied Universal focuses on various different areas, including Higher Education, Healthcare, and Corporate Campuses. Allied Universal security services takes pride in having carefully screened, highly trained security officers who are sensitive to unique business environments.

Andrews International

AI distinguished itself early by focusing on earning business with greater value. Whereas “security guards” may be warm bodies in uniforms, an Andrews International security officer is the consummate security professional, with superior qualifications and higher education.

Andrews International security services



Andrews International (AI) was founded in Los Angeles in 1988 in response to the growing demand among Hollywood studios for security forces with advanced skills and training. With innovations like the industry’s first anti-piracy program, Andrews International soon expanded its geographic footprint and extended security service operations into new business sectors. Andrews International provides armed and unarmed security guards for businesses as well as offering specialist government and defense department solutions. In 2009 it bought Canadian global security giant GardaWorld’s U.S. and Mexican guarding services for a sum exceeding $44 million making it one of the largest security companies in America.


Brinks security services

Brinks is the worlds largest cash management company and has a network that dots the global landscape. The firm operates in over 100 countries, with a staff of roughly 60,000. Perry Brink established Brink’s City Express in Chicago in 1859 and began using a horse-drawn wagon to move customers’ suitcases from local railroad stations to hotels. In 1891 the company made its first cash-in-transit delivery, transporting half a dozen bags filled with silver dollars. These days, Brink’s is perhaps best known for its fleet of armored vans, which it uses to help see to the needs of governments, mints, banks, jewelers and other businesses. It also offers airport security, guarding, and logistical and cash management services. In 2011 Brinks brought in $3.9 billion in revenue.

Pinkerton Government Services

Pinkerton Security Services

Spy and detective Allan Pinkerton founded the Pinkerton National Detective Agency in Chicago in 1850 making it one of the oldest security companies in America. Nowadays, Pinkerton Government Services “offers a full range of cleared protective services designed to meet the specific requirements of the U.S. government.” It provides regular security services such as guards, firefighting and emergency medical technicians, as well as specialized resources like sniffer dogs. In 2003 Pinkerton was acquired by Swedish security giant Securitas AB, and it is in the process of switching its name to Securitas Critical Infrastructure. Pinkerton has a lot of history: the company was tasked with tracking down notorious criminals such as Jesse James and Butch Cassidy, at one time worked with Abraham Lincoln, and has received mention on TV shows such as Boardwalk Empire.

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