Freshservice - Freshservice: the one-stop cloud solution for all your IT management needs.
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.
Request Tracker - open-source enterprise grade issue and ticket tracking system
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
NetHelpDesk - Leading provider of help desk software and customer support software. Trusted by IT professionals and service desks for over 20 years.
Slack - A messaging app for teams who see through the Earth!