Allied Universal today announced it has agreed to acquire U.S. Security Associates ("USSA") for approximately $1.0 billion. Based in Roswell, Georgia, USSA is one of the leading providers of security and related services in the United States, employing more than 50,000 security professionals serving several thousand clients across a wide range of industries. USSA generated 2017 pro forma revenues and Adjusted EBITDA of c. $1.5 billion and $95 million, respectively.