Worldox - Worldox is a document and email management solution, that helps to manage share & access all digital content.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
iManage - iManage started its services as document and file management and later on started to store contents as well and to let the businesses to store their files and data for a specified period.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
Slack - A messaging app for teams who see through the Earth!