Geometry Handling Library - A library for 2-D and 3-D geometric calculation in C, with functions for shape generation, geometric evaluation, intersection, and offsetting and filleting.Parasolid - The geometry engine inside SolidWorks, SolidEdge, DesignWave, IronCAD, Unigraphics and many other products.
IntegrityWare, Inc. - Offers libraries for geometric solvers, trimmed surfaces, and polygon optimization, including visualization features.
CurveTrainer - A basic experimental lab for geometric shape processing, for learning about the mathematical theory and practical maipulation of vairous parametric curves
VectorDraw Drawing Components - Object oriented 2D/3D graphics libraries with AutoCAD file format support, as well as a web-based version.
DeveloCAD.com - Graphics libraries for Delphi developers, such as an OpenGL canvas, hidden lines algorithms, and geometry data management.
Geometric Software Solutions - Technology provider to CAD/CAM/CAE vendors, offering components for geometry manipulation, information managmeent, and collaborative engineering.
Cadmai Software GmbH - Cadmai ist a parametric and relational CAD module that can be integrated as a intelligent viewer in other applications.
Open CASCADE - A 3D modeling kernel that consists of reusable C++ object libraries that are available as Open Source.
C4W - Offers modelling kernel libraries and related tools for construction, analysis, and presentation of 3D models.
D-Cubed - Supplies geometric constraint managers, hidden line and collision detection components to the CAD/CAM industry.
Spatial Technologies, Inc. - Develops, markets and supports software components for 3D modeling, visualization, and interoperability, such as the ACIS solid modelling kernel.
VeCAD DLL - 2D vector graphics library that can be used to create CAD applications.
Gardos Software - Avax ActiveX control to view, create, edit, print, and manage 2D vector drawings.