JConsole - Provides information about performance and resource consumption for Java applications.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
YourKit Java Profiler - Java profiler
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
VisualVM - VisualVM is a visual tool integrating several commandline JDK tools and lightweight profiling...
Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.