Cdw - cdw: ncurses interface for GNU/Linux command line CD/DVD tools
WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
Microsol Resources - Autodesk Platinum Partner providing BIM & CAD software, training, consulting, staffing & 3D printing for architecture, engineering & construction.
TreeSize - TreeSize tells you where precious disk space has gone to.
Imaginit Technologies - Honor. Educate. Inspire.
SpaceSniffer - SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.