is capital one a bank or credit union
Capital One Capital One is the eighth-largest commercial bank in the United States when ranked by assets and deposits.[4] and is ranked 10th on the list of largest banks in the United States by total assets. The bank has 755 branches[4] including 18 cafÃ© style locations[5] and 2,000 ATMs. It is ranked #100 on the Fortune 500,[6] #17 on Fortune's 100 Best Companies to work for list,[7] and conducts business in the United States, Canada, and the United Kingdom.[2] The company helped pioneer the mass marketing of credit cards in the 1990s, and it is one of the largest customers of the United States Postal Service due to its direct mail credit card solicitations.[8] In 2015, it was the 5th largest credit card issuer by purchase volume, after American Express, JP Morgan Chase, Bank of America, and Citigroup.[9]