(Reuters) - Blackstone Group LP is exploring a sale of AlliedBarton Security Services in a deal that could value the largest U.S. security officer services company at around $1.5 billion, including ...

NEW YORK, NY, October 31, 2006 –AlliedBarton Security Services, www.AlliedBarton.com, the largest American owned and managed security services firm, announces its donation of $150,000 to support the ...

PortStar announces a 10-year National Partner License Agreement with AlliedBarton Security Services, the industry’s premier provider of highly trained security personnel, for use of its Seaport ...

Shelby County, Tenn. Mayor Mark Luttrell to make opening remarks MEMPHIS, TN--(Marketwire - May 11, 2012) - AlliedBarton Security Services, the industry's premier provider of highly trained security ...

AlliedBarton Security Services recently hired more than 20 veterans to join Georgetown’s nighttime security force as part of a nationwide veteran employment initiative called the 100,000 Jobs Mission.