1. Bechtel
Bechtel has been at the top of contracting companies in the US for 17 years now. They specialize in a number of fields which include, government, nuclear, mining, oil, to name a few. They have projects in over 160 countries and have been on the market since 1898.
This has been the list of 11 biggest general contractors in the US. These companies are responsible for a lot of the major works we see today.
