Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.
Pivotal Tracker - Pivotal Tracker: The awesome, lightweight, agile project management tool for software teams. Get your 30-day Free Trial started today!
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.