FreeBu - Smart free/busy calendar sharing and meeting organizer.

Prekindle - Prekindle is a simple yet powerful event management, ticketing, and marketing platform that helps businesses to sell tickets to the event online and spread the word.

Letsfind - Letsfind is a fast, easy-to-use, ad-free way to create online (meeting) polls.

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.

FullCalendar - FullCalendar is an open-source JavaScript event calendar.

EventTitans - Top rated event management software