TeamGantt is project management with modern gantt charts

Sendtask sends tasks in order to collaborate with anyone, even if they don’t have an account

Codebase is git, mercurial and subversion hosting with project management tools

Blosson is project management made specifically for remote teams

Basecamp organizes team communication, projects and client work to give one view of your business

Asana is an extremely powerful project management tool for any size startup, founded by Dustin Moskovitz