Microsoft Project - Microsoft Office Project gives you robust project management tools with the right blend of...
jxProject - Free Project Management Software (powerful constraint solver, read/write XML, muti-platform)
GanttProject - Project scheduling and management tool
Agado - Agado combines project management, invoicing and performance measurement in one intuitive workflow...
Smartsheet - Smartsheet is an intuitive online project management tool enabling teams to increase productivity using cloud, collaboration, & mobile technologies.
Project Viewer 365 - Free Viewer for Microsoft Project MPP Files