The big U.S. banks all have branches in various EU countries and can open accounts there for U.S. entities. Typically they do it for their mid to large commercial and Corp customers. However, depending on your status at Chase or citi they may allow you as an individual to open the account. If it's just a matter of sending euros via wire most banks will send dollars from here with instructions to the EU bank to convert. Obviously you will lose some money and fees on the conversion. And last but not least you can usually walk into any bank in switzerland, Lichtenstein , even london ,etc... and open an account but there will be minimums and fees. Usually very high minimums.
