Regard3D - Regard3D is a free, multiplatform, open-source structure-from-motion application.
RealityCapture - RealityCapture is a software solution which automatically produces high resolution 3D models from photographs or laser-scans.
Pix4Dmapper - Photogrammetry software for professional drone-based mapping, purely from images.
Botlink - Botlink enables users to fly drones, create aerial maps, and automatically sync those maps with...
Skycatch - Commercial drone data solutions for modern businesses.
3DF Zephyr - Next up in my series of Photogrammetry Software Reviews — after ReMake, PhotoScan & RealityCapture — is 3DF Zephyr (including the Free version).