Netfabb - Innovative software solutions for 3D printing and additive manufacturing.
CADMAPPER - Instant CAD files for any location on earth
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
DWGFREE - DWGFREE is an online platform that comes with a comprehensive collection of CAD blocks that can be downloaded without the need for registration.
meshmixer - meshmixer is an experimental 3D modeling tool for making 3D mashups without too much hassle.
MAPACAD - MAPACAD is an online website that is providing leverage to designers and architectures to have the ability to download CAD map cities that can be directly used in their projects.