InviteRobot - Instant subscription for paid Slack communities
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
SlackPass - Subscription access to anything with Slack
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
Grapevine Surveys - Grapevine is an online survey tool for employee surveys.
Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.