Reston, Virginia-based risk management and operational support services contractor Constellis has agreed to purchase OMNIPLEX World Services for an undisclosed sum in a push to add the latter's investigative services to its portfolio and expand its client base in the U.S. intelligence community.

Chantilly, Virginia-based OMNIPLEX operates with approximately 2,100 employees and 1,700 investigators that work to provide risk management, investigative and physical security support services to federal agencies across homeland security, law enforcement and intelligence communities. Bluestone Capital Partners served as financial advisor in the transaction.