Postfinance
Postfinance is a large bank in Switzerland. It is a part of Swiss Post (the Swiss Postal service). It is mainly active to do national and international payments. It also offers other services, such as saving accounts, or accounts for pension plans, or morgages, but to a lesser extent.  It is among the biggest financial institutions in Switzerland. Because it is part of Swiss Post, everyone who legally lives in Switzerland must be able to get a bank account at Postfinance.