SnapShooter - Backups for servers, databases and applications. Leading backup provider for DigitalOcean Snapshots, as well providing backups for databases like MySQL, PostgreSQL and MongoDB. Used my thousands of businesses backuping Petabytes worth of data.

Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.

Samepage - Samepage facilitates communication, project management, meetings, online collaboration, and more by combining team chat, video calling, screen sharing, task management, and real-time team document collaboration in a single collaborative workspace.

snaprd - Snaprd is a program that helps you to make snapshot backups using rsync.

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.

rsync - rsync is a file transfer program for Unix systems. rsync uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync.