Dozuki - Dozuki is a web-based tool for creating and distributing step-by-step documentation.
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.
Bloomfire - Let Bloomfire help you get organized! Organize your content, build your company knowledge base and help your employees to be more successful.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
REWO - REWO is a knowledge documentation and distribution solution, which drastically improves capturing, visualizing and communicating knowledge.
Slack - A messaging app for teams who see through the Earth!