Rick Wilking/Reuters The richest families in the world own billions, possessing $1.1 trillion in wealth collectively, according to Bloomberg. This wealth is derived from various industries, including retail, media, agribusiness, technology, and more. From the Ferrero family's Nutella fortune to the Walton family's Walmart fortune, here are the 25 richest families in the world. From the richest families in America to the richest royals in Europe, high concentrations of wealth can be found all around the world. In fact, there are 2,208 billionaire individuals across 72 countries for a combined total of $9.1 trillion, according to Forbes.