Wealth September 8, 2016updated 26 Sep 2016 10:56am Billionaire makers: The cities growing the world’s wealthiest By Spear's New York has topped the list of cities where the most billionaires were born, according to analysis by WealthInsight and Spear’s magazine. Content from our partners Lagos Private Wealth Conference 2025: Shaping Africa’s Legacy of Prosperity From bold beginnings to global prestige: the legacy of Penfolds Bin 707 The Windsor is bringing seamless luxury to Heathrow Related Wealth Washington’s millionaires face income levy in global test case Wealth AI fuels fortunes of world’s growing billionaire class Wealth UHNW entrepreneurs lag behind in building personal wealth, UBS finds Spear's