HSBC Guyerzeller Bank AG, a member of the HSBC Group, was a Swiss private bank advising individuals and families in all matters of wealth management, investment advice and trust services. Its head office was in Zurich, and it had two branches in Geneva, as well as representative offices in Hong Kong and Istanbul. It had 360 employees and about CHF 29 billion in assets under management. It is now subsumed under HSBC Private Bank.