Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
SurfersList - The ultimate online solution for finding, buying, and selling new and used surf equipment.
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
Fanatics - Fanatics is the leading online retailer of officially licensed sports merchandise!
Ticket19 - Sell tickets for your events with minimal transaction fees.
Wooter - Marketplace for sports & activities