How Lyft's cofounders, Logan Green and John Zimmer, went from organizing carpools on college campuses to running a ride-hailing company worth $29 billion

• Logan Green and John Zimmer cofounded Lyft, then called Zimride, in 2008 after meeting on Facebook.
• Zimride started out as a side project before the founders moved to Silicon Valley and focused on bringing the ride-sharing service to college campuses.
• Lyft officially launched in 2012, and Green and Zimmer sold Zimride to Enterprise.
• Now, Lyft is going public at a valuation of about $29 billion with shares opening at $87.24 apiece.

Before they met, Lyft cofounders Logan Green and John Zimmer, both self-proclaimed transportation geeks, each started small car-sharing programs on their respective college campuses.

Now, Lyft is going public with a valuation of about $29 billion, Business Insider's Rebecca Ungarino reported, with shares trading at $87.24 apiece.

Read more: Lyft soars 21% in his historic trading debut - and is now valued at $29 billion

Green and Zimmer met on Facebook through a mutual friend while Zimmer was working at Lehman Brothers in New York City and Green was still a college student. Together, they started Lyft's precursor, called Zimride, in 2008.

Lyft's IPO won't make the pair overnight billionaires, but it will almost certainly contribute to an influx of new millionaires in San Francisco over the course of 2019 as several high-profile tech startups plan to go public.

Here's how Green and Zimmer went from organizing carpools on college campuses to running a $29 billion company.