RSVPify - A powerful and awesomely customizable platform for selling tickets online for your event.
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
JustRSVP.me - Online Invitations and response tracking for weddings, baby showers, birthdays, parties, and other...
EventMobi - EventMobi is an interactive mobile event app, audience response and engagement platform for conferences and trade shows.
Evite - Send online invitations for all occasions by email or text message. Create invites for birthdays, baby showers, save the dates, or customize your own design.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets