Coinbase is a digital asset exchange company headquartered in San Francisco, California. It operates exchanges of bitcoin (), Ethereum and other digital assets with fiat currencies in 32 countries, and bitcoin transactions and storage in 190 countries worldwide. Coinbase was founded in June 2012 by Brian Armstrong and Fred Ehrsam. It enrolled in the Summer 2012 Y Combinator startup incubator program. In October 2012, the company launched the services to buy and sell bitcoin through bank transfers. In May 2013, the company received a US$5 million Series A investment led by Fred Wilson from the venture capital firm Union Square Ventures. In December 2013, the company received a US$25 million investment, from the venture capital firms Andreessen Horowitz, Union Square Ventures and Ribbit Capital.