Biz Email ( by Kolab ) - HashMail 365 Business Professional
50 GB of cloud storage for email, contacts, and calendar sync.
Create, collaborate, and work from anywhere with 1 TB of online storage.
Online only version compatible with Microsoft 365 web-apps like Excel, Word, PowerPoint, etc.
Collabora Online enabling Web based collaborative real-time editing of word processing documents, spreadsheets, presentations, and vector graphics. Optional apps are available for desktops, laptops, tablets, smartphones and Chromebooks. comes with Mattermost
Mattermost is online chat service with file sharing, search, and integrations. It is designed as an internal chat for organisations and companies
