OmniPlan - OmniPlan is a platform to visualize, maintain and simplify your projects.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Microsoft Project - Microsoft Office Project gives you robust project management tools with the right blend of...
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
iTaskX 3 - Professional and intuitive project management application designed for Mac.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.