U.S. Military

• Air Force Research Laboratory
• Army Space Command
• Army Space & Missile Defense Command
• Defense Advanced Research Projects Agency (DARPA)
• Department of Defense
• Los Angeles AFB
• Missile Defense Agency
• National Geospatial-Intelligence Agency
• National Security Space Office
• Naval Research Laboratory (NRL)
• Naval Network and Space Operations Command
• North American Aerospace Defense Command (NORAD)