Bizness Apps - Create your own app or become a reseller and build apps for others
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
GoodBarber - GoodBarber is a mobile app creation platform.
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
Fuse - Fuse is a UX tool suite for mobile app designers and developers.
Ticket Tribe - Sell tickets online with no fees per ticket