Adobe Systems | BAE Systems | Cisco Systems | Catalog numbering systems for single records | Electronic Data Systems | Cadence Design Systems | Microelectromechanical systems | Marconi Electronic Systems | systems engineering | Space and Missile Systems Center | Raytheon Space and Airborne Systems | Epic Systems | Elbit Systems | Burroughs large systems | Westinghouse Rail Systems | Systems engineering | Nielsen Broadcast Data Systems | Naval Sea Systems Command | Mouse Systems | International Institute for Applied Systems Analysis | BEA Systems | Advanced Systems Format | Systems art | Rafael Advanced Defense Systems | Pinnacle Systems | Perot Systems | Origin Systems | Open Systems Interconnection | Naval Air Systems Command | International Foundation for Electoral Systems |
By February 26, 2007, APC by Schneider Electric, Rackable Systems, SprayCool (later part of Parker Hannifin), and VMware had joined the effort, and a meeting in April 2007 was announced.