Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Regard3D - Regard3D is a free, multiplatform, open-source structure-from-motion application.
ZBrush - ZBrush is a digital sculpting and painting software solution.
ContextCapture - Acute3D develops breakthrough photogrammetry software solutions to automatically turn photos into photorealistic high resolution 3D models
DAZ 3D - Daz 3D, 3D Models, 3D Animation, 3D Software
RealityCapture - RealityCapture is a software solution which automatically produces high resolution 3D models from photographs or laser-scans.