1. http://www.3ds.com/, Dassault systems.
2. http://www.informatix.co.jp/top/profile_e.html, informatrix.
3. http://www.autodesk.com/suites/plant-design-suite/overview, Autodesk.
4. http://www.aveva.com/en/Products_and_Services/AVEVA_for_Plant/AVEVA_for_EPCs.aspx, Aveva.
5. http://www.bentley.com/en-US/Products/microstation+product+line, Bentley.