Sidekick by Hubspot - Customer insight integrated with your email tools.
Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.
Sansan - Sansan provides a internal contact sharing service for companies.
CrowdCompass - CrowdCompass offers mobile app development for conferences, meetings, conventions.
HiHello - Exchange contacts, seamlessly.
EventMobi - EventMobi is an interactive mobile event app, audience response and engagement platform for conferences and trade shows.