Revizto - Revizto is an integrated BIM collaboration software platform that gives owners, designers, contractors, and facility managers the essential tools to streamline the building design and permitting process.
i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
Fonn - Fonn is a cloud-based solution designed to increase productivity and profitability on construction sites.
dwm - dwm is a dynamic window manager for X. It manages windows in tiled, monocle and floating layouts. All of the layouts can be applied dynamically, optimising the environment for the application in use and the task performed.
Enscape3D - Realtime Rendering Plugin for Revit. Live link from BIM to virtual walkthrough.
Openbox - Openbox is a highly configurable, next generation window manager with extensive standards support.