- DesignCAD - Multipurpose software for 2D drafting and 3D solid modeling.
- Evolution Computing, Inc. - Developers of the FastCAD and EasyCAD computer aided drafting programs
- Joel Orr's World of Technology - News and articles about CAD, plus books, humor, educational resources and relevant links.
- OpenITx: CAD/CAM - Mailing lists for users of CAD/CAM systems, with discussions about technical and functional aspects as well as how to select the right software.
- PowerCAD - CAD program in 2D/3D for architectural and mechanical applications, with AutoCAD compatibility features.
- solidThinking - Modelling software that supports NURBS, polygonal modeling, and subdivision surfaces, available for Windows and Macintosh.
- Touch-3D - 3D modeling, unfolding and unwrapping program for Macintosh and Windows, and free-form add-on MCnurbs Creator for VectorWorks and MiniCad.
- VARKON - A parametric CAD system and development tool for engineering, computer aided design, and product modeling applications, with free download for Linux and Windows.