SCARM - Simple Computer Aided Railway Modeller
Skycatch - Commercial drone data solutions for modern businesses.
RailModeller - RailModeller is a new application for creating model railroad and slot car layouts.
Pix4Dmapper - Photogrammetry software for professional drone-based mapping, purely from images.
WinTrack - Track planing software
Regard3D - Regard3D is a free, multiplatform, open-source structure-from-motion application.