St. John Properties, in partnership with Aberdeen Proving Ground (APG), is developing The Government and Technology Enterprise (The GATE), a state-of-the-art office and technology business park for lease to government sector and non-government users. APG, a leading R&D and testing center for the U.S. Army, boasts some of the most sophisticated testing firms, defense contractors and other Army and Department of Defense units working on advanced research activities to complement APG's missions and help make it a Center for Excellence.