| Alibre Inc: Alibre Design is a low-cost parametric mechanical design application with CAD-neutral data sharing and online collaboration tools. |
| Ashlar Inc.: Graphite 2D drafting as well as Cobalt, Xenon, and Argon versions of the Vellum 3D modelling software |
| Autodesk Inventor: Solid modeling package for 3D mechanical design. |
| Autodesk Inventor Tutorials by Sean Dotson: Basic and advanced tutorials on the use and customization of Autodesk Inventor 3D CAD software, discussion forums and current CAD news. |
| Autopipe: Software that calculates piping code stresses, loads, and deflections under static and dynamic loading conditions, with special features for buried pipeline analysis, wave loading, and fluid transients. |
| CADables: TurboCAD hatch patterns, color palettes, and related resources. |
| Cadsoft Solutions, Inc.: Developer of Concepts Unlimited, 2D 3D modeling tools for Mac and PC designers. Supports precise NURBS,analytices, rendering, animiation and drawing composition. |
| CoCreate: Provider of engineering collaboration software for product design, management, and development, CAD, PLM, mechanical engineering, and workflow management. |
| Drew's MCAD Connection: A technical resource for users of Autodesk's MCAD products including Mechanical Desktop and Inventor. |
| Engineering Software Solutions: Developers of engineering based design software for special requirements in industries such as petrochemical, ship building, mining, civil, mechanical, structual, manufacturing, defence and aerospace. |
| freeCAD: A basic CAD program for creating collections of 3D elements, which can be connected by joints, constraints, actuators, springs, dampers, or forces for running motion simulations. |
| Function Bay, Inc.: Virtual prototyping of complex mechanical systems with the RecurDyn software products. |
| Intergraph SmartSketch: A 2D parametric drawing program for Windows, that works on AutoCAD and MicroStation files. |
| IronCAD: Solid modeling software for mechanical designers and engineers. |
| MCS, Inc.: Makers of the Anvil Express software for mechanical design, that also has manufacturing features. |
| Pilot3D: A relational trimmed NURB curve and surface 3D modeling program, useful for boat hulls and other applications. |
| ProSpur+: A program designed to create drawings of spur gears, as symbols for ProCAD+ on Acorn RISC computers. |
| Revware, inc.: Feature-based reverse engineering software for SolidWorks. |
| Romax Technology: Develops software for gear box design, dynamic simulation of gear shift synchronization, and related tasks. |
| Saga Software: TabletCAD is a computer program for designing medicinal tablet shapes, calculating tablet volume and surface area and producing tablet technical drawings. |
| SeaSolution: CAD/CAM tool for geometric simulation and design focused at ship building and shell plates development. |
| Sheet Lightning: Specialized engineering 2D/3D CAD shareware for sheet metal design and unfolding for fabrication and manufacture. It handles cylinders, cones, square-to-round adapters, ovals, intersections and multi-intersections. |
| Sigmetrix LLC: Develops and supports CE/TOL, a tolerance and variation analysis software package for mechanical design and manufacturing processes. |
| SketchCalc: A software that allows to calculate the properties of arbitrary profile sections, imported from DXF. |
| SnapCAD: A mechanical design software package for TEMA type shell and tube heat axchangers and ASME pressure vessels. |
| Solid ConceptMecaSoft: Develops and sells SolidConcept, a parametric 3D solid modeling software for creating parts, assemblies and automatic 2D drawings. |
| SolidWorks: A solid modeling program for mechanical engineers and designers, as well as add-on applications. |
| SteelCad: Steel detailing software with packages for structural design, detailing, and manufacturing. |
| Think3: Produces mechanical CAD software for conceptual design through engineering to manufacturing for products in many industries. |
| VariCAD: 2D/3D mechanical engineering CAD System for Windows and Linux. |
| Washington Softwares Ltd.: Mechanical design software with 2-D drawing support for designing of centrifugal fans, pressure vessles (ASME & ISI standards), Gears, clutches, and couplings. |
| Zetaline Projects Limited: Presents the PipeData-Pro software family for piping designers and engineers [requires JavaScript and Flash]. |
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