Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Aventri - Aventri's event management technology has helped thousands of brands globally transform the way they plan and execute meetings and events while tracking and improving their business objectives.

Zendesk - Zendesk is a beautiful, lightweight help-desk solution.

Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.

Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community