The company, with revenue of $13.7 billion in 2019, operates a convention center and casinos in Las Vegas along with gambling resorts in Macao and Singapore. His wealth was derived mostly from his majority stake in Las Vegas Sands. With a fortune of $33.5 billion, Adelson was listed by Forbes in September as the 28th-richest person in the world. The death of casino mogul Sheldon Adelson may bring uncertainties to the gambling market future of Macao as authorities of the world’s biggest casino hub mull an industry overhaul.Īdelson, founder of the world’s largest casino company, Las Vegas Sands Corp., died Monday night from complications related to non-Hodgkin’s lymphoma, the company said Tuesday.