Advanced Geospatial Solutions - Offers technology to display and manipulate 3D CAD and terrain models, designed to be embedded into GIS, CAD, technical documentation and e-learning applications. - http://www.advancedgeospatial.com/
Building Block Software - Provides no-cost C library source code for 2D and 3D geometry operations, boundary offset, area booleans, milling and turning toolpaths. - http://www.buildingblock.com/
Wout Ware - CadLib is A .NET DXF file manipulation library with 2D and 3D support that also handles export to image formats and PDF. - http://www.woutware.com/
Component Ingenuity, Inc. - DWGDOMlib and DXFDOMlib modules for reading and manipulating DWG and DXF files from within .NET applications. - http://www.componentingenuity.com/
DInsight - KernelCAD is an embedded CAD software, which adds interactive 3D solid modeling functionality to any Windows application. - http://www.dynoinsight.com/
LEDAS Ltd. - Provides a variational geometric solver for CAD, scheduling, planning and other intellectual solutions, using proprietary constraint-based technologies. - http://ledas.com/
Kotem Technologies Inc. - Offers components for CAD/CAM software, such as the 3D Core CAD-engine, the SmartFit 3D best-fitting application, and related functionality. - http://www.kotem.com/
IntegrityWare, Inc. - Offers libraries for geometric solvers, trimmed surfaces, and polygon optimization, including visualization features. - http://www.integrityware.com/
Weresc - Offers CADE, a CAD ActiveX control to view and edit 2D vector graphic, with web and DXF support. - http://www.weresc.com/
Soft Gold, Ltd. - AutoCAD DXF tools for developers. ABViewer for Windows Commander and Far Manager. 3d DXF viewing and printing with C++, VB, and Delphi. - http://www.cadsofttools.com/
KolbaSoft - The VeCAD 2D vector graphics library can be used to create CAD applications. - http://www.kolba.com/
Gardos Software - Avax ActiveX control to view, create, edit, print, and manage 2D vector drawings. - http://business.hol.gr/gardos/
Spatial Technologies, Inc. - Develops, markets and supports software components for 3D modeling, visualization, and interoperability, such as the ACIS solid modelling kernel. - http://www.spatial.com/
D-Cubed - Supplies geometric constraint managers, hidden line and collision detection components to the CAD/CAM industry. - http://www.d-cubed.co.uk/index.htm
C4W - Offers modelling kernel libraries and related tools for construction, analysis, and presentation of 3D models. - http://www.c4w.com/
Open CASCADE - A 3D modeling kernel that consists of reusable C++ object libraries that are available as Open Source. - http://www.opencascade.com/
Cadmai Software GmbH - Cadmai ist a parametric and relational CAD module that can be integrated as a intelligent viewer in other applications. - http://www.cadmai.com/
Geometric Software Solutions - Technology provider to CAD/CAM/CAE vendors, offering components for geometry manipulation, information management, and collaborative engineering. - http://www.geometricsoftware.com/
DeveloCAD.com - Graphics libraries for Delphi developers, such as an OpenGL canvas, hidden lines algorithms, and geometry data management. - http://www.develocad.com/
VectorDraw Drawing Components - Object oriented 2D/3D graphics libraries with AutoCAD file format support, as well as a web-based version. - http://www.vdraw.com/
CurveTrainer - A basic experimental lab for geometric shape processing, for learning about the mathematical theory and practical manipulation of various parametric curves. - http://www.pml.co.jp/cvt/index.html
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. - http://www.pml.co.jp/ghl/index.html