Blender - Blender is the open source, cross platform suite of tools for 3D creation.

Sculptris - Sculptris: Enter a world of digital art without barriers.

Autodesk Maya - Maya is 3D computer animation software with powerful modeling, rendering, simulation, texturing, and animation tools for artists, modelers, and animators.

Misfit Model 3D - Misfit Model 3D is a 3D model editor that basically operates with triangle-based models.

Houdini - Houdini covers all the major areas of 3D production, including:

Sketchfab - Sketchfab is an industrial design software tool is useful for ideation and for beginners in the industrial design field.