Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Punchbowl - A party planning and greeting card website
pretix - pretix helps you to sell tickets for your event in an easy way. It supports multi-lingual events and provides a wide range of features
Invite Share - TechCrunch - Reporting on the business of technology, startups, venture capital funding, and Silicon Valley
Ticket19 - Sell tickets for your events with minimal transaction fees.
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.