- 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.
- Oh Yeah CAD
- A free online parts library that supports AutoCAD, Solidworks, TurboCAD, and SolidEdge native file format.
- Trace Parts
- Library of parametric components for 2D/3D CAD assemblies, which can be used with several CAD packages.
- Free 3D CAD models in tandem with Free manufacturer part number interchanges. Supports all major CAD systems.