Single Family Offices (SFOs) - the investment firms of wealthy families - are becoming an increasingly important phenomenon in the world's business world. For years now, the number of billionaires has been rising in the same speed as the number of single family offices. These in turn are pushing into the financial and investment markets to invest their money above zero interest rates. As a result, more and more single family offices are becoming involved in real estate, private equity, venture capital and financial markets.