Robinhood - Free stock trading service.
Richie Invest - An app that lets you invest with your friends
ClosingBell - Collaborative Stock Trading
Raiz - Invest spare change automatically from everyday purchases into a diversified portfolio.
Motif - Stop picking stocks. Invest in Ideas.
Bamboo - Bamboo is a continuous integration and deployment tool that ties automated builds, tests and releases together in a single workflow.