FLR

Fluor Corporation

A global engineering, procurement, and construction firm, Fluor designs and builds everything from oil-and-gas and LNG plants to mining, life-science, and government nuclear-security projects. A Swiss immigrant named John Simon "Si" Fluor founded it in 1912 in Santa Ana, California. It also runs staffing arm TRS Staffing Solutions, and its roots trace back to a saw and paper mill the Fluor brothers opened in Wisconsin before the company ever turned a spade.