Mobilizon - A free and federated tool to get our events off Facebook

Clariti.app - Clariti is a team communication app that uses Artificial Intelligence to combine emails, chats, documents, calendar events and feeds on the same topic, in rich context-based Conversations to ensure your communication stays focused & organized.

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

CiraSync - CiraSync is a program that syncs and shares office 365 GAL contacts and calendars to smartphones.

DownToMeet - DownToMeet is a platform to organize, find, and attend group events.

Attio - Attio is a radically new type of CRM that is real-time, entirely customizable and intuitively collaborative. Using Attio, your team can create, build and deploy your CRM exactly as you want it.