Dropbox - Online Sync and File Sharing

Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.

ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.

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.

Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.

RingCentral Video - Live life unlimited. Free video meetings and team messaging in one app that works the way you do.