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.
Pix4Dmapper - Photogrammetry software for professional drone-based mapping, purely from images.
DAZ 3D - Daz 3D, 3D Models, 3D Animation, 3D Software
ContextCapture - Acute3D develops breakthrough photogrammetry software solutions to automatically turn photos into photorealistic high resolution 3D models