PDMS Users Group of the Americas

Includes information about an annual technical conference and contact information for the chairs of each working group.
http://www.puga.org/

CADArena.com

Dedicated to users of Cadcentre's PDMS 3D design software. Community forum site that provides support, job listings, and shareware for PDMS users worldwide.
http://www.cadarena.com/

Plantcon A/S

Danish PDMS sales, consulting, and training courses. Site includes free PDMS macros. (Site in Danish, English, and German.)
http://www.plantcon.dk/

PlantWare's PDMS Information

Discussion of the benefits of using Cadcentre's PDMS (Plant Design Management System) software for collaborative 3D multi-user engineering.
http://www.pdms.dk/

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.
http://www.aveva.com/