Lyft Just Capped a Year of Milestones: 1 Billion Rides, $15 Billion Valuation, 80 Percent of the Bike-Share Market

Back in 2008, Logan Green and John Zimmer connected over Facebook to launcha carpooling startup. Eleven yearsand one pivot later, the two founders plan to take the ridehailinggiant, worth billions of dollars, to the public markets in2019.