ZBrush - ZBrush is a digital sculpting and painting software solution.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
CAD Exchanger - View, explore and convert 3D CAD data on desktop, web and mobile. Read and write Solidworks, STEP, JT, STL and 30 other 3D formats. Applications for end-users. SDK's and tools for software developers. Custom development services for businesses.
Autodesk Maya - Maya is 3D computer animation software with powerful modeling, rendering, simulation, texturing, and animation tools for artists, modelers, and animators.
Nomad Sculpt - Nomad is a sculpting & painting mobile app, available on Android and iOS.