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.

15Five - 15Five software elevates the performance and engagement of employees by consistently asking questions and starting the right conversations.

Nifty - Manage projects, work, and communications in one place.

Leantime - Lean project management for startups & small teams

Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.

Planka - Planka is an open source project management software similar to Trello.