Spin is North America's leading stationless bikeshare company. We are transforming cities and campuses by offering an accessible, affordable, & environmentally-friendly form of personal mobility.


Founded in San Francisco in 2016, Spin has raised an $8M Series A to launch operations in dozens of cities and campuses around the country. Our core team is comprised of engineers, designers, operators, lawyers, and public policy makers with experience from Y Combinator, Uber, Lyft and other technology companies.


Meet the Team


Derrick Ko • CEO & Co-founder

Derrick was formerly a growth product manager at Lyft by way of acquisition of a Y Combinator company, Kicksend, where he was the first employee. He previously was a lead at Pivotal Labs - where he worked with Rakuten and IDEO - and had stints at Microsoft and Hewlett-Packard. He graduated from Purdue University with a B.S. in Computer Engineering.


Euwyn Poon • President & Co-founder

Euwyn was the founding partner of Exponent, a venture firm started by Y Combinator alumni that has invested in over 25 early-stage companies. A two-time Y Combinator founder, he co-founded Delta Financial, a startup backed by YC, Initialized Capital and Winklevoss Capital, which created one of the first interest-bearing Bitcoin products in 2014, and Opzi, an enterprise collaboration startup funded by YC, First Round Capital and SV Angel. He began his career practicing M&A and securities law at Simpson Thacher & Bartlett in New York City, and earned a CS degree and JD from Cornell.


Zaizhuang Cheng • CTO

Zaizhuang was formerly a Software Engineer Lead at Disqus ($90M exit) and an Engineering Manager at the Defense Science and Technology Agency in Singapore. Zaizhuang holds a BS in Electrical Engineering from Purdue University and a Masters in Management Science and Engineering from Stanford University.