Paco - Never miss a thing on Slack — be more calm and productive

Zendesk - Zendesk is a beautiful, lightweight help-desk solution.

awesome - A dynamic window manager for the X Window System developed in the C and Lua programming languages.

Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community

Lowdown - Lowdown unleashes the valuable content locked within Slack and emails it to your members so they don't miss key information.

HelpScout - Help Scout is a simple, straightforward way to provide excellent support