The Richest in Real Estate Top 100
The Basics
Location: San Francisco | Net Worth: $2.70 B
Location: San Francisco | Net Worth: $2.70 B

They each own roughly 20% of the company, which is the largest engineering and construction company in the world, with $37B in revenue. The company's portfolio includes the Hoover Dam, the Boston Central Artery/Tunnel, and the Tacoma Narrow Bridge.