BMC Software - BMC Software is a solution for companies to help them in running and reinventing their businesses with scalable and modular solutions to IT problems and management.
Elegantt for Trello - The most elegant way to manage your Trello projects
accurev - version control system. Licensed
Hello Epics for Trello - Simplify your Trello board with parent/child relationships
Hex.pm - Hex.
TunnelVision - See your next Trello tasks every time you open a browser tab