SolidWorks - A solid modeling program for mechanical engineers and designers, as well as add-on applications. MCS, Inc. - Makers of the Anvil Express software for mechanical design, that also has manufacturing features. CoCreate - Provider of engineering collaboration software for product design, management, and development, CAD, PLM, mechanical engineering, and workflow management. IronCAD - Solid modeling software for mechanical designers and engineers. VariCAD - 2D/3D mechanical engineering CAD System for Windows and Linux. Ashlar Inc. - Graphite 2D drafting as well as Cobalt, Xenon, and Argon versions of the Vellum 3D modelling software SteelCad - Steel detailing software with packages for structural design, detailing, and manufacturing. Engineering Software Solutions - Developers of engineering based design software for special requirements in industries such as petrochemical, ship building, mining, civil, mechanical, structural, 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. Pilot3D - A relational trimmed NURB curve and surface 3D modeling program, useful for boat hulls and other applications. Sigmetrix LLC - Develops and supports CE/TOL, a tolerance and variation analysis software package for mechanical design and manufacturing processes. 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. Zetaline Projects Limited - Presents the PipeData-Pro software family for piping designers and engineers [requires JavaScript and Flash]. Romax Technology - Develops software for gear box design, dynamic simulation of gear shift synchronization, and related tasks. Autodesk Inventor - Solid modeling package for 3D mechanical design. Revware, inc. - Feature-based reverse engineering software for SolidWorks. Geomagic - A low-cost parametric mechanical design application with CAD-neutral data sharing and online collaboration tools. Washington Softwares Ltd. - Mechanical design software with 2-D drawing support for designing of centrifugal fans, pressure vessels (ASME and ISI standards), Gears, clutches, and couplings. Cadsoft Solutions, Inc. - Developer of Concepts Unlimited, 2D 3D modeling tools for Mac and PC designers. Supports precise NURBS, analytics, rendering, animation and drawing composition. 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. Enventive Engineering, Inc. - Software for the combination of preliminary design, mechanism motion simulation, travel and effort studies, critical parameter identification and analysis, optimization, and tolerance analysis. Ascon Group - Develops software for 3D Parametric Solid Modelling and 2D Drafting, with add-ons for motion simulation, photorendering, kinematic and dynamic analysis. Function Bay, Inc. - Virtual prototyping of complex mechanical systems with the RecurDyn software products.