National Oilwell Varco, also known as NOV, is one of the leaders throughout the world in the design, manufacture and sale of equipment and components. The components are used in oil and gas drilling and production, the provision of oilfield inspection and other services and supply chain integration services to the upstream oil and gas industry. With more than 140 years of service, National Oilwell Varco is the single source for all rig equipment, integrated systems, downhole tools and supply chain solutions. By developing and acquiring new technologies and services to better serve future customer requirements, National Oilwell Varco has become one of the premier sources for diversified products and services throughout the world. Headquartered in Houston, National Oilwell Varco is a privately owned company that employs nearly 18,000 people. In addition, National Oilwell Varco has a branch facility located in Houston where it employs nearly 65 people.