Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
pricendo - Kassen & Weil GbR develops pricendo. A new product search on the german market.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
SearchLikes - Search activity Vkontakte (likes and comments)
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
VenueScanner - Connecting event organisers with venue hosts