GoodBarber - GoodBarber is a mobile app creation platform.
Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.
Dropsource - Mobile development platform for building native iOS & Android apps
CrowdCompass - CrowdCompass offers mobile app development for conferences, meetings, conventions.
Bizness Apps - Create your own app or become a reseller and build apps for others
EventMobi - EventMobi is an interactive mobile event app, audience response and engagement platform for conferences and trade shows.