Dingo - Dingo is a peer-to-peer marketplace for buying and selling tickets to live events
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
WasGeht.In - offering unique happenings made by locals
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
MarketingZoom - A social marketplace to buy and sell marketing.
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