Nutickets - Event management software fully tailored to your brand with white label ticketing, registration, website integration & custom development.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Event Management Database - The Event management Database takes the hard work out of managing events, exhibitions, and conferences. Set multiple pricing, issue invoices, assign event coordinators, and more. Ideal for an Events business or anyone tasked to managing an event.
pretix - pretix helps you to sell tickets for your event in an easy way. It supports multi-lingual events and provides a wide range of features