WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
Gather - Gather allows hospitality agencies of all sizes to organize and breed productive events businesses.
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
Caterease - Make catering easy with Caterease, the world's best catering software. See for yourself why there is nothing else like the Caterease experience. Product TourTake a product tour of Caterease software.
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.
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.