statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.
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.
YUNO - YUNO is a web data driven company focussed on solving customer challenges in web data discovery and extraction space.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Yonyx - Decision tree driven Interactive guides for customer service
Slack - A messaging app for teams who see through the Earth!