Collabtive - Collabtive is a web-based project management software.

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

greenbox - Greenbox is a powerful, secure, and easy to use application-based document collaboration solution that converts your organization into a green & paperless workplace. It helps to Store, Track, Share and Manage the documents.

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.

Redmine - Flexible project management web application

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