Nifty - Manage projects, work, and communications in one place.
Amazon Mechanical Turk - The online market place for work.
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.
Supervisely - Supervisely helps people with and without machine learning expertise to create state-of-the-art...
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.
Labelbox - Build computer vision products for the real world