Robinhood - Free stock trading service.
Plaid - Infrastructure that powers financial technology by enabling applications to connect with users' bank accounts.
Trigger Finance - IFTTT for the stock market
Verafin - Verafin provides compliance, anti-money laundering, and fraud detection software.
SysGears Grain Framework - The simplest way to start investing.
QuoteMedia - Financial web tools that allow users to access real-time stock quotes, with live charts and NASDAQ level 2 data.