Microsoft Teams - Microsoft Teams provides the enterprise-level security, compliance and management features you expect from Office 365, including broad support for compliance standards, and eDiscovery and legal hold for channels, chats, and files.
Google Open Source - All of Googles open source projects under a single umbrella
Slack - A messaging app for teams who see through the Earth!
Open Source @IFTTT - A collection of IFTTT OSS projects.
Workplace by Facebook - Connect everyone in your company and turn ideas into action.
Code NASA - 253 NASA open source software projects