CADian USA
- IntelliCAD based software products for architectural, mechanical, and electrical design, as well as the basic CAD package.
- http://www.cadianusa.com/

Autodsys, Inc.
- Developer and distributor of IntelliCAD, supporting AEC software such as ArchT Architectural, and AutoLINE.
- http://www.autodsys.com/

ADeko Group
- IntelliCAD member from Turkey, offering local language support and a kitchen design application.
- http://www.adeko.com.tr/

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/

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

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

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/

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

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

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