Aveva Group Plc.: Supplier of software solutions and services to the process industries, including PDMS for plant design engineering, VANTAGE for engineering change management, and other datacentric design tools.
Plantcon A/S: Danish PDMS sales, consulting, and training courses. Site includes free PDMS macros. (Site in Danish, English, and German.)
PlantWare's PDMS Information: Discussion of the benefits of using Cadcentre's PDMS (Plant Design Management System) software for collaborative 3D multi-user engineering.