CADClick: A database for mechanical engineers that offers access to CAD geometries from different suppliers on mechanical engineering.
CADParts: Produces library symbols and footprints for the Cadence CAD software.
CADRegister: A source for design professionals, engineers, and architects to download component drawings from leading manufacturers, in a variety of industry-standard formats.
CADSymbols: Online 2D/3D parts library for Solidworks, AutoCAD and other software, in formats including ACIS SAT, DXF, DWG, and IGES.
Catalog Data Solutions Inc.: Online 2D/3D parts library hosting, integrated with PTC Wildfire and the ability to do Parametric searches. Formats include PRT, DXF, IGES, DWG.
Catalog Data Solutions, Inc.: Solutions to add 3D models to online catalogs and CAD modelling consulting.
Human-Ergo: A source for poly-faceted 3D Models of human figures, cars, trucks and construction machinery for SolidWorks, Unigraphics, SolidEdge, and IronCad.
Oh Yeah CAD: A free online parts library that supports AutoCAD, Solidworks, TurboCAD, and SolidEdge native file format.
PARTserver: A parts library integrated with many CAD systems for direct invocation, as well as with standard data formats
PARTsolutions: A parts library integrated with many CAD systems for direct invocation, as well as with standard data formats.
Trace Parts: Library of parametric components for 2D/3D CAD assemblies, which can be used with several CAD packages.
Vanguard Software GmbH: Offers partsCAT, an electronic spare parts catalogue software for publishing catalogues on CD-ROM and online.
VirtualCAD: Free 3D CAD models in tandem with Free manufacturer part number interchanges. Supports all major CAD systems.