EventTitans - Top rated event management software
Punchbowl - A party planning and greeting card website
Tix - Tix is a state-of-the-art, cloud-based ticketing system that features fully integrated access controls, event management controls, multi-channel distribution capabilities, and a robust reporting suite.
RSVPify - A powerful and awesomely customizable platform for selling tickets online for your event.
Brushfire - Brushfire offers tools for online registration and event management.
Whoozin.com - Free RSVP Online | Track RSVP’s and Sell Tickets for your events and recurring meetings.