Uploadcare - File uploading, media processing & content delivery for modern web apps
Slack - A messaging app for teams who see through the Earth!
hat.sh - Free, fast, secure and serverless file encryption
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.
Uppy - The next open source file uploader for web browsers
Loop Email - Emailing for teams: Organize your Inbox into channels 💌