A9Tech: Offers the general-purpose 2D CAD program A9CAD supporing industry standar DWG and DXF drawing formats, and the DWG/DXF translator A9Converter, both free.
Accucadd: A Windows drafting program, the successor to the DOS based RoboCAD.
AllyCAD: A 2D CAD package for the architectural, civil, and mechanical industries.
AndyCAD: A low cost general purpose 2D CAD program.
CAD Schroer GmbH: Manufacturer and vendor of the MEDUSA4 parametric 2D CAD system, and several application specific extensions.
CadStd: A drafting program for Windows, with a free lite version.
Delta Cad: A 2D CAD software designed to be easy to use.
Delta Software international: CAD Pro is a drafting and design software with engineering precision and adaptive tools.
Dexterpen: A parametric drawing and calculating utility, for creating diagrams of variable geometry objects. Writes DXF files and copies to office applications.
General CADD Products, Inc.: About the General CADD Pro 2D Windows CAD program, with user forums and a downloadable manual.
JustCad: A 2D CAD program for Windows, distributed as shareware.
Malz++Kassner GmbH: CAD 5 drafting software for Windows, with plug-ins to support DXF, DWG, HPGL/2 and SVG file formats.
Pressure Vessel Drafting Guide: Detailed instructions on how do design and draft pressure vessels with AutoCAD, with examples.
ProCAD+: A computer aided 2D drawing program for Acorn RISC OS computers.
QCad: A 2D CAD system for Linux, Unix Systems, Mac OS X and Windows, released as Open Source for unix based systems.
TigerCad: Budget 2D CAD software for mechanical, architectural and diagrams.
VectorEngineer: A multi-purpose 2D CAD system for technical drawings, designs, and isometric visualizations. A free version is available for download.
ZiPCAD: A drafting program for Palm OS handheld computers, with DXF file export.