Doit.im - Doit.
The Hit List - Your life is complicated, but managing it doesnt need to be.
Makagiga - Makagiga is an all-in application that is known for doing a variety of tasks such as one to-do manager, note-taking, to-do listing, and RSS reading.
Conqu - Conqu is a simple yet powerful task management tool designed to help you conquer your inbox and get things done.
Planisware Orchestra - Planisware Orchestra is a best-in-class project portfolio management software and solution, providing an agile approach to bring all the stakeholders on the same page.
Remember The Task - My Softwares