Keenan Wyrobek is one of four founders of Zipline, with Keller Rinaudo Cliffton, Ryan Oksenhorn and William Hetzler.
Zipline grew out of Romotive, a company Rinaudo Cliffton founded in 2011 to make an iPhone-controlled robot. After Romotive stopped operating in 2014, the four founders began building a fixed-wing drone for medical delivery. Zipline was founded in March 2014 in Half Moon Bay, California.
In October 2016 it made its first deliveries in Muhanga, Rwanda. A second Rwanda hub opened in Kayonza in December 2018, and a Ghana launch followed in April 2019 with yellow fever vaccines.
In January 2026 Zipline raised more than $600 million at a $7.6 billion valuation, led by Valor Equity Partners.