Jeff Bezos has a net worth of US$197.7 billion, making him the wealthiest person in the technology industry . Mark Zuckerberg follows in second place with $172.5 billion, while Larry Ellison ranks third with $139.9 billion, and Bill Gates comes in fourth with $128.1 billion . Sergey Brin is 7th, followed by Jensen Huang and Colin Huang (No. 10, $43.9 billion). Revealed: These are the countries with the highest and lowest disposable income in Europe