The wealthiest people in the world have a staggering amount of money. Here are top 10 richest people in the world of 2018. 10. David Koch David Koch Net Worth: $61.8 Billion Company: Koch Industries As the brother of Charles Koch he serves as the Executive Vice President of Koch Industries. David and Charles both own a 42% stake in the company. 9. Charles Koch Charles Koch Net Worth: $61.8 Billion Company: Koch Industries Charles Koch is a billionaire philanthropist. Charles is the co-founder and CEO of Koch industries. Koch Industries involvement now includes processing equipment, pollution control equipment, polymers and fibers, minerals, fertilizers, commodity trading and services,…