Followup.cc - FollowUp for email is a lightweight productivity suite that keeps your conversations and tasks from slipping through the cracks. Set perfectly timed reminders that arrive at the top of your inbox, right when you need them.

Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

Gmelius - Gmelius is the first collaboration platform designed for G Suite and your company's daily tools.

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

Boomerang for Outlook - Boomerang for Outlook offers email productivity tools to track, schedule and send mails at the right time.

Bigtent - BigTent is a web-based organization and communication portal for groups.