Robinhood - Free stock trading service.
My Charity Change - Round-up daily transactions & donate to charities
TradeStation - Whether you trade stocks, ETFs, options or futures, TradeStation’s award-winning tools and...
4thWall - A free Google Chrome extension that raises money for charities while you stream shows and movies right on your favorite websites.
OptionsHouse - OptionsHouse is an online stock trading platform with an easy-to-use interface.
Hedado - Donate like a boss with Hedado!