Lyft is going public — here are the 15 biggest unicorns that still need to IPO

Lyft is set to debuted on the Nasdaq on Friday morning at a valuation of $21 billion.
Here are the 15 biggest "unicorns," or private tech companies valued at over $1 billion.
Ride-sharing app Lyft priced its initial public offering Thursday at $72 per share, giving the company a valuation of $21 billion.
The company was known as a "unicorn" for being privately held and worth over $1 billion. To mark Lyft's IPO, we compiled a list of the 15 biggest unicorns, many of which are also contemplating t