CADopia LLC  
   Developer and distributor of IntelliCAD and related multimedia and modeling software, provides training and a user forum.
   http://www.cadopia.com/

IntelliCAD Technology Consortium  
   The ITC is a non-profit organization committed to cooperatively develop the CAD system IntelliCAD.
   http://www.intellicad.org/

CAD Manufacturing Solutions, Inc.  
   Offers the CMS IntelliCAD software with user forums and support.
   http://www.intellicadms.com/

SIACAD  
   Support information about IntelliCAD, such as tutorials, FAQs, and an online forum, from an AEC software company in Singapore.
   http://www.siacad.com/support/

Cadinfo: IntelliCAD Articles  
   A series of articles about IntelliCAD, with background information, feature descriptions, and tips and tricks.
   http://www.cadinfo.net/icad/

ProgeSOFT  
   Developer and distributor of IntelliCAD. Member of ITC consortium, provides Architectural and Mechanical applications.
   http://www.progesoft.com/

RGM Technical Services  
   AutoLISP tools to enhance Intellicad and Powercad. May work for Autocad users. Free downloads for freeware and trialware.
   http://www.rgmts.com/