Coinbase is a digital currency exchange headquartered in San Francisco, California. They broker exchanges of Bitcoin, Bitcoin Cash, Ethereum, Ethereum Classic, and Litecoin with fiat currencies in approximately 32 countries, and bitcoin transactions and storage in 190 countries worldwide.

Coinbase, our mission is to build an open financial system — that’s the work we do every day. When it comes to our vision, the kind of world we want to help create, it has become increasingly clear that what we are really working toward is increasing economic freedom, a measurable concept that can be greatly improved by the adoption of cryptocurrency.

Source: coinbase.com